Package org.eclipse.core.resources

Interface IResource

All Superinterfaces:

IAdaptable, ISchedulingRule

All Known Subinterfaces:

IContainer, IFile, IFolder, IProject, IWorkspaceRoot

public interface IResource
extends IAdaptable, ISchedulingRule

The workspace analog of file system files and directories. There are exactly four types of resource: files, folders, projects and the workspace root.

File resources are similar to files in that they hold data directly. Folder resources are analogous to directories in that they hold other resources but cannot directly hold data. Project resources group files and folders into reusable clusters. The workspace root is the top level resource under which all others reside.

Features of resources:

• IResource objects are handles to state maintained by a workspace. That is, resource objects do not actually contain data themselves but rather represent resource state and give it behavior. Programmers are free to manipulate handles for resources that do not exist in a workspace but must keep in mind that some methods and operations require that an actual resource be available.
• Resources have two different kinds of properties as detailed below. All properties are keyed by qualified names.
  • Session properties: Session properties live for the lifetime of one execution of the workspace. They are not stored on disk. They can carry arbitrary object values. Clients should be aware that these values are kept in memory at all times and, as such, the values should not be large.
  • Persistent properties: Persistent properties have string values which are stored on disk across platform sessions. The value of a persistent property is a string which should be short (i.e., under 2KB).
• Resources are identified by type and by their path, which is similar to a file system path. The name of a resource is the last segment of its path. A resource's parent is located by removing the last segment (the resource's name) from the resource's full path.
• Resources can be local or non-local. A non-local resource is one whose contents and properties have not been fetched from a repository.
• Phantom resources represent incoming additions or outgoing deletions which have yet to be reconciled with a synchronization partner.

Resources implement the IAdaptable interface; extensions are managed by the platform's adapter manager.

See Also:

• IWorkspace
• Platform.getAdapterManager()

Restriction:

This interface is not intended to be implemented by clients.

Restriction:

This interface is not intended to be extended by clients.

Field Summary

Fields

Modifier and Type	Field	Description
static final int	ALLOW_MISSING_LOCAL	Update flag constant (bit mask value 16) indicating that the link creation should proceed even if the local file system file or directory is missing.
static final int	ALWAYS_DELETE_PROJECT_CONTENT	Update flag constant (bit mask value 4) indicating that the operation should delete the files and folders of a project.
static final int	AVOID_NATURE_CONFIG	Update flag constant (bit mask value 64) indicating that setting the project description should not attempt to configure and de-configure natures.
static final int	BACKGROUND_REFRESH	Update flag constant (bit mask value 128) indicating that opening a project or creating a linked folder should refresh in the background.
static final int	CHECK_ANCESTORS	Update flag constant (bit mask value 512) indicating that ancestor resources of the target resource should be checked.
static final int	DEPTH_INFINITE	Depth constant (value 2) indicating this resource and its direct and indirect members at any depth.
static final int	DEPTH_ONE	Depth constant (value 1) indicating this resource and its direct members.
static final int	DEPTH_ZERO	Depth constant (value 0) indicating this resource, but not any of its members.
static final int	DERIVED	Update flag constant (bit mask value 0x400) indicating that a resource should be marked as derived.
static final int	FILE	Type constant (bit mask value 1) which identifies file resources.
static final int	FOLDER	Type constant (bit mask value 2) which identifies folder resources.
static final int	FORCE	Update flag constant (bit mask value 1) indicating that the operation should proceed even if the resource is out of sync with the local file system.
static final int	HIDDEN	Update flag constant (bit mask value 0x1000) indicating that a resource should be marked as a hidden resource.
static final int	KEEP_HISTORY	Update flag constant (bit mask value 2) indicating that the operation should maintain local history by taking snapshots of the contents of files just before being overwritten or deleted.
static final int	NEVER_DELETE_PROJECT_CONTENT	Update flag constant (bit mask value 8) indicating that the operation should preserve the files and folders of a project.
static final int	NONE	General purpose zero-valued bit mask constant.
static final int	NULL_STAMP	Modification stamp constant (value -1) indicating no modification stamp is available.
static final int	PROJECT	Type constant (bit mask value 4) which identifies project resources.
static final int	REPLACE	Update flag constant (bit mask value 256) indicating that a resource should be replaced with a resource of the same name at a different file system location.
static final int	ROOT	Type constant (bit mask value 8) which identifies the root resource.
static final int	SHALLOW	Update flag constant (bit mask value 32) indicating that a copy or move operation should only copy the link, rather than copy the underlying contents of the linked resource.
static final int	TEAM_PRIVATE	Update flag constant (bit mask value 0x800) indicating that a resource should be marked as team private.
static final int	VIRTUAL	Update flag constant (bit mask value 0x2000) indicating that a resource should be marked as a virtual resource.

Method Summary

Modifier and Type	Method	Description
void	accept(IResourceProxyVisitor visitor, int memberFlags)	Accepts the given visitor for an optimized traversal.
void	accept(IResourceProxyVisitor visitor, int depth, int memberFlags)	Accepts the given visitor for an optimized traversal.
void	accept(IResourceVisitor visitor)	Accepts the given visitor.
void	accept(IResourceVisitor visitor, int depth, boolean includePhantoms)	Accepts the given visitor.
void	accept(IResourceVisitor visitor, int depth, int memberFlags)	Accepts the given visitor.
void	clearHistory(IProgressMonitor monitor)	Removes the local history of this resource and its descendents.
void	copy(IProjectDescription description, boolean force, IProgressMonitor monitor)	Makes a copy of this project using the given project description.
void	copy(IProjectDescription description, int updateFlags, IProgressMonitor monitor)	Makes a copy of this project using the given project description.
void	copy(IPath destination, boolean force, IProgressMonitor monitor)	Makes a copy of this resource at the given path.
void	copy(IPath destination, int updateFlags, IProgressMonitor monitor)	Makes a copy of this resource at the given path.
IMarker	createMarker(String type)	Creates and returns the marker with the specified type on this resource.
default IMarker	createMarker(String type, Map<String,? extends Object> attributes)	Creates and returns the marker with the specified type on this resource.
IResourceProxy	createProxy()	Creates a resource proxy representing the current state of this resource.
void	delete(boolean force, IProgressMonitor monitor)	Deletes this resource from the workspace.
void	delete(int updateFlags, IProgressMonitor monitor)	Deletes this resource from the workspace.
void	deleteMarkers(String type, boolean includeSubtypes, int depth)	Deletes all markers on this resource of the given type, and, optionally, deletes such markers from its children.
boolean	equals(Object other)	Compares two objects for equality; for resources, equality is defined in terms of their handles: same resource type, equal full paths, and identical workspaces.
boolean	exists()	Returns whether this resource exists in the workspace.
IMarker	findMarker(long id)	Returns the marker with the specified id on this resource, Returns null if there is no matching marker.
IMarker[]	findMarkers(String type, boolean includeSubtypes, int depth)	Returns all markers of the specified type on this resource, and, optionally, on its children.
int	findMaxProblemSeverity(String type, boolean includeSubtypes, int depth)	Returns the maximum value of the IMarker.SEVERITY attribute across markers of the specified type on this resource, and, optionally, on its children.
String	getFileExtension()	Returns the file extension portion of this resource's name, or null if it does not have one.
IPath	getFullPath()	Returns the full, absolute path of this resource relative to the workspace.
long	getLocalTimeStamp()	Returns a cached value of the local time stamp on disk for this resource, or NULL_STAMP if the resource does not exist or is not local or is not accessible.
IPath	getLocation()	Returns the absolute path in the local file system to this resource, or null if no path can be determined.
URI	getLocationURI()	Returns the absolute URI of this resource, or null if no URI can be determined.
IMarker	getMarker(long id)	Returns a marker handle with the given id on this resource.
long	getModificationStamp()	Returns a non-negative modification stamp, or NULL_STAMP if the resource does not exist or is not local or is not accessible.
String	getName()	Returns the name of this resource.
IContainer	getParent()	Returns the resource which is the parent of this resource, or null if it has no parent (that is, this resource is the workspace root).
IPathVariableManager	getPathVariableManager()	Returns the path variable manager for this resource.
Map<QualifiedName,String>	getPersistentProperties()	Returns a copy of the map of this resource's persistent properties.
String	getPersistentProperty(QualifiedName key)	Returns the value of the persistent property of this resource identified by the given key, or null if this resource has no such property.
IProject	getProject()	Returns the project which contains this resource.
IPath	getProjectRelativePath()	Returns a relative path of this resource with respect to its project.
IPath	getRawLocation()	Returns the file system location of this resource, or null if no path can be determined.
URI	getRawLocationURI()	Returns the raw location of this resource, or null if no path can be determined.
ResourceAttributes	getResourceAttributes()	Gets this resource's extended attributes from the file system, or null if the attributes could not be obtained.
Map<QualifiedName,Object>	getSessionProperties()	Returns a copy of the map of this resource's session properties.
Object	getSessionProperty(QualifiedName key)	Returns the value of the session property of this resource identified by the given key, or null if this resource has no such property.
int	getType()	Returns the type of this resource.
IWorkspace	getWorkspace()	Returns the workspace which manages this resource.
boolean	isAccessible()	Returns whether this resource is accessible.
boolean	isDerived()	Returns whether this resource subtree is marked as derived.
boolean	isDerived(int options)	Returns whether this resource subtree is marked as derived.
boolean	isHidden()	Returns whether this resource is hidden in the resource tree.
boolean	isHidden(int options)	Returns whether this resource is hidden in the resource tree.
boolean	isLinked()	Returns whether this resource has been linked to a location other than the default location calculated by the platform.
boolean	isLinked(int options)	Returns true if this resource has been linked to a location other than the default location calculated by the platform.
boolean	isLocal(int depth)	Deprecated. This API is no longer in use.
boolean	isPhantom()	Returns whether this resource is a phantom resource.
boolean	isReadOnly()	Deprecated. use getResourceAttributes()
boolean	isSynchronized(int depth)	Returns whether this resource and its descendents to the given depth are considered to be in sync with the local file system.
boolean	isTeamPrivateMember()	Returns whether this resource is a team private member of its parent container.
boolean	isTeamPrivateMember(int options)	Returns whether this resource is a team private member of its parent container.
boolean	isVirtual()	Returns whether this resource is a virtual resource.
void	move(IProjectDescription description, boolean force, boolean keepHistory, IProgressMonitor monitor)	Renames or relocates this project so that it is the project specified by the given project description.
void	move(IProjectDescription description, int updateFlags, IProgressMonitor monitor)	Renames or relocates this project so that it is the project specified by the given project description.
void	move(IPath destination, boolean force, IProgressMonitor monitor)	Moves this resource so that it is located at the given path.
void	move(IPath destination, int updateFlags, IProgressMonitor monitor)	Moves this resource so that it is located at the given path.
void	refreshLocal(int depth, IProgressMonitor monitor)	Refreshes the resource hierarchy from this resource and its children (to the specified depth) relative to the local file system.
void	revertModificationStamp(long value)	Reverts this resource's modification stamp.
void	setDerived(boolean isDerived)	Deprecated. Replaced by setDerived(boolean, IProgressMonitor) which is a workspace operation and reports changes in resource deltas.
void	setDerived(boolean isDerived, IProgressMonitor monitor)	Sets whether this resource subtree is marked as derived.
void	setHidden(boolean isHidden)	Sets whether this resource and its members are hidden in the resource tree.
void	setLocal(boolean flag, int depth, IProgressMonitor monitor)	Deprecated. This API is no longer in use.
long	setLocalTimeStamp(long value)	Sets the local time stamp on disk for this resource.
void	setPersistentProperty(QualifiedName key, String value)	Sets the value of the persistent property of this resource identified by the given key.
void	setReadOnly(boolean readOnly)	Deprecated. use IResource#setResourceAttributes(ResourceAttributes)
void	setResourceAttributes(ResourceAttributes attributes)	Sets this resource with the given extended attributes.
void	setSessionProperty(QualifiedName key, Object value)	Sets the value of the session property of this resource identified by the given key.
void	setTeamPrivateMember(boolean isTeamPrivate)	Sets whether this resource subtree is a team private member of its parent container.
void	touch(IProgressMonitor monitor)	Marks this resource as having changed even though its content may not have changed.

Methods inherited from interface org.eclipse.core.runtime.IAdaptable

getAdapter

Methods inherited from interface org.eclipse.core.runtime.jobs.ISchedulingRule

contains, isConflicting

Field Details

FILE

static final int FILE

Type constant (bit mask value 1) which identifies file resources.

See Also:

• getType()
• IFile
• Constant Field Values

FOLDER

static final int FOLDER

Type constant (bit mask value 2) which identifies folder resources.

See Also:

• getType()
• IFolder
• Constant Field Values

PROJECT

static final int PROJECT

Type constant (bit mask value 4) which identifies project resources.

See Also:

• getType()
• IProject
• Constant Field Values

ROOT

static final int ROOT

Type constant (bit mask value 8) which identifies the root resource.

See Also:

• getType()
• IWorkspaceRoot
• Constant Field Values

DEPTH_ZERO

static final int DEPTH_ZERO

Depth constant (value 0) indicating this resource, but not any of its members.

See Also:

• Constant Field Values

DEPTH_ONE

static final int DEPTH_ONE

Depth constant (value 1) indicating this resource and its direct members.

See Also:

• Constant Field Values

DEPTH_INFINITE

static final int DEPTH_INFINITE

Depth constant (value 2) indicating this resource and its direct and indirect members at any depth.

See Also:

• Constant Field Values

FORCE

static final int FORCE

Update flag constant (bit mask value 1) indicating that the operation should proceed even if the resource is out of sync with the local file system.

Since:

2.0

See Also:

• Constant Field Values

KEEP_HISTORY

static final int KEEP_HISTORY

Update flag constant (bit mask value 2) indicating that the operation should maintain local history by taking snapshots of the contents of files just before being overwritten or deleted.

Since:

2.0

See Also:

• IFile.getHistory(IProgressMonitor)
• Constant Field Values

ALWAYS_DELETE_PROJECT_CONTENT

static final int ALWAYS_DELETE_PROJECT_CONTENT

Update flag constant (bit mask value 4) indicating that the operation should delete the files and folders of a project.

Deleting a project that is open ordinarily deletes all its files and folders, whereas deleting a project that is closed retains its files and folders. Specifying ALWAYS_DELETE_PROJECT_CONTENT indicates that the contents of a project are to be deleted regardless of whether the project is open or closed at the time; specifying NEVER_DELETE_PROJECT_CONTENT indicates that the contents of a project are to be retained regardless of whether the project is open or closed at the time.

Since:

2.0

See Also:

• NEVER_DELETE_PROJECT_CONTENT
• Constant Field Values

NEVER_DELETE_PROJECT_CONTENT

static final int NEVER_DELETE_PROJECT_CONTENT

Update flag constant (bit mask value 8) indicating that the operation should preserve the files and folders of a project.

Deleting a project that is open ordinarily deletes all its files and folders, whereas deleting a project that is closed retains its files and folders. Specifying ALWAYS_DELETE_PROJECT_CONTENT indicates that the contents of a project are to be deleted regardless of whether the project is open or closed at the time; specifying NEVER_DELETE_PROJECT_CONTENT indicates that the contents of a project are to be retained regardless of whether the project is open or closed at the time.

Since:

2.0

See Also:

• ALWAYS_DELETE_PROJECT_CONTENT
• Constant Field Values

ALLOW_MISSING_LOCAL

static final int ALLOW_MISSING_LOCAL

Update flag constant (bit mask value 16) indicating that the link creation should proceed even if the local file system file or directory is missing.

Since:

2.1

See Also:

• IFolder.createLink(IPath, int, IProgressMonitor)
• IFile.createLink(IPath, int, IProgressMonitor)
• Constant Field Values

SHALLOW

static final int SHALLOW

Update flag constant (bit mask value 32) indicating that a copy or move operation should only copy the link, rather than copy the underlying contents of the linked resource.

Since:

2.1

See Also:

• copy(IPath, int, IProgressMonitor)
• move(IPath, int, IProgressMonitor)
• Constant Field Values

AVOID_NATURE_CONFIG

static final int AVOID_NATURE_CONFIG

Update flag constant (bit mask value 64) indicating that setting the project description should not attempt to configure and de-configure natures.

Since:

3.0

See Also:

• IProject.setDescription(IProjectDescription, int, IProgressMonitor)
• Constant Field Values

BACKGROUND_REFRESH

static final int BACKGROUND_REFRESH

Update flag constant (bit mask value 128) indicating that opening a project or creating a linked folder should refresh in the background.

Since:

3.1

See Also:

• IProject.open(int, IProgressMonitor)
• IFolder.createLink(URI, int, IProgressMonitor)
• Constant Field Values

REPLACE

static final int REPLACE

Update flag constant (bit mask value 256) indicating that a resource should be replaced with a resource of the same name at a different file system location.

Since:

3.2

See Also:

• IFile.createLink(URI, int, IProgressMonitor)
• IFolder.createLink(URI, int, IProgressMonitor)
• move(IProjectDescription, int, IProgressMonitor)
• Constant Field Values

CHECK_ANCESTORS

static final int CHECK_ANCESTORS

Update flag constant (bit mask value 512) indicating that ancestor resources of the target resource should be checked.

Since:

3.2

See Also:

• isLinked(int)
• Constant Field Values

DERIVED

static final int DERIVED

Update flag constant (bit mask value 0x400) indicating that a resource should be marked as derived.

Since:

3.2

See Also:

• IFile.create(java.io.InputStream, int, IProgressMonitor)
• IFolder.create(int, boolean, IProgressMonitor)
• setDerived(boolean)
• Constant Field Values

TEAM_PRIVATE

static final int TEAM_PRIVATE

Update flag constant (bit mask value 0x800) indicating that a resource should be marked as team private.

Since:

3.2

See Also:

• IFile.create(java.io.InputStream, int, IProgressMonitor)
• IFolder.create(int, boolean, IProgressMonitor)
• copy(IPath, int, IProgressMonitor)
• setTeamPrivateMember(boolean)
• Constant Field Values

HIDDEN

static final int HIDDEN

Update flag constant (bit mask value 0x1000) indicating that a resource should be marked as a hidden resource.

Since:

3.4

See Also:

• Constant Field Values

VIRTUAL

static final int VIRTUAL

Update flag constant (bit mask value 0x2000) indicating that a resource should be marked as a virtual resource.

Since:

3.6

See Also:

• IFolder.create(int, boolean, IProgressMonitor)
• Constant Field Values

NULL_STAMP

static final int NULL_STAMP

Modification stamp constant (value -1) indicating no modification stamp is available.

See Also:

• getModificationStamp()
• Constant Field Values

NONE

static final int NONE

General purpose zero-valued bit mask constant. Useful whenever you need to supply a bit mask with no bits set.

Example usage:

 
    delete(IResource.NONE, null)
 
 

Since:

2.0

See Also:

• Constant Field Values

Method Details

accept

void accept(IResourceProxyVisitor visitor,
 int memberFlags)
     throws CoreException

Accepts the given visitor for an optimized traversal. The visitor's visit method is called, and is provided with a proxy to this resource. The proxy is a transient object that can be queried very quickly for information about the resource. If the actual resource handle is needed, it can be obtained from the proxy. Requesting the resource handle, or the full path of the resource, will degrade performance of the visit.

The entire subtree under the given resource is traversed to infinite depth, unless the visitor ignores a subtree by returning false from its visit method.

This is a convenience method, fully equivalent to accept(visitor, IResource.DEPTH_INFINITE, memberFlags).

No guarantees are made about the behavior of this method if resources are deleted or added during the traversal of this resource hierarchy. If resources are deleted during the traversal, they may still be passed to the visitor; if resources are created, they may not be passed to the visitor. If resources other than the one being visited are modified during the traversal, the resource proxy may contain stale information when that resource is visited.

If the IContainer.INCLUDE_PHANTOMS flag is not specified in the member flags (recommended), only member resources that exist will be visited. If the IContainer.INCLUDE_PHANTOMS flag is specified, the visit will also include any phantom member resource that the workspace is keeping track of.

If the IContainer.INCLUDE_TEAM_PRIVATE_MEMBERS flag is not specified (recommended), team private members will not be visited. If the IContainer.INCLUDE_TEAM_PRIVATE_MEMBERS flag is specified in the member flags, team private member resources are visited as well.

If the IContainer.INCLUDE_HIDDEN flag is not specified (recommended), hidden resources will not be visited. If the IContainer.INCLUDE_HIDDEN flag is specified in the member flags, hidden resources are visited as well.

If the IContainer.DO_NOT_CHECK_EXISTENCE flag is not specified (recommended), the resource is checked for existence before the visitor's visit method is called. If the IContainer.DO_NOT_CHECK_EXISTENCE flag is specified in the member flags, the resource is not checked for existence before the visitor's visit method is called. Children of the resource are never checked for existence.

Parameters:

visitor - the visitor

memberFlags - bit-wise or of member flag constants (IContainer.INCLUDE_PHANTOMS, IContainer.INCLUDE_TEAM_PRIVATE_MEMBERS and IContainer.INCLUDE_HIDDEN) indicating which members are of interest and IContainer.DO_NOT_CHECK_EXISTENCE if the resource on which the method is called should not be checked for existence

Throws:

CoreException - if this request fails. Reasons include:

• the IContainer.INCLUDE_PHANTOMS flag is not specified and this resource does not exist.
• the IContainer.INCLUDE_PHANTOMS flag is not specified and this resource is a project that is not open.
• the IContainer.DO_NOT_CHECK_EXISTENCE flag is not specified and this resource does not exist.
• The visitor failed with this exception.

Since:

2.1

See Also:

• IContainer.INCLUDE_PHANTOMS
• IContainer.INCLUDE_TEAM_PRIVATE_MEMBERS
• IContainer.INCLUDE_HIDDEN
• IContainer.DO_NOT_CHECK_EXISTENCE
• isPhantom()
• isTeamPrivateMember()
• IResourceProxyVisitor.visit(IResourceProxy)

accept

void accept(IResourceProxyVisitor visitor,
 int depth,
 int memberFlags)
     throws CoreException

Accepts the given visitor for an optimized traversal. The visitor's visit method is called, and is provided with a proxy to this resource. The proxy is a transient object that can be queried very quickly for information about the resource. If the actual resource handle is needed, it can be obtained from the proxy. Requesting the resource handle, or the full path of the resource, will degrade performance of the visit.

The entire subtree under the given resource is traversed to the supplied depth, unless the visitor ignores a subtree by returning false from its visit method.

No guarantees are made about the behavior of this method if resources are deleted or added during the traversal of this resource hierarchy. If resources are deleted during the traversal, they may still be passed to the visitor; if resources are created, they may not be passed to the visitor. If resources other than the one being visited are modified during the traversal, the resource proxy may contain stale information when that resource is visited.

If the IContainer.INCLUDE_PHANTOMS flag is not specified in the member flags (recommended), only member resources that exist will be visited. If the IContainer.INCLUDE_PHANTOMS flag is specified, the visit will also include any phantom member resource that the workspace is keeping track of.

If the IContainer.INCLUDE_TEAM_PRIVATE_MEMBERS flag is not specified (recommended), team private members will not be visited. If the IContainer.INCLUDE_TEAM_PRIVATE_MEMBERS flag is specified in the member flags, team private member resources are visited as well.

If the IContainer.INCLUDE_HIDDEN flag is not specified (recommended), hidden resources will not be visited. If the IContainer.INCLUDE_HIDDEN flag is specified in the member flags, hidden resources are visited as well.

If the IContainer.DO_NOT_CHECK_EXISTENCE flag is not specified (recommended), the resource is checked for existence before the visitor's visit method is called. If the IContainer.DO_NOT_CHECK_EXISTENCE flag is specified in the member flags, the resource is not checked for existence before the visitor's visit method is called. Children of the resource are never checked for existence.

Parameters:

visitor - the visitor

depth - the depth to which members of this resource should be visited. One of DEPTH_ZERO, DEPTH_ONE, or DEPTH_INFINITE.

memberFlags - bit-wise or of member flag constants (IContainer.INCLUDE_PHANTOMS, IContainer.INCLUDE_TEAM_PRIVATE_MEMBERS and IContainer.INCLUDE_HIDDEN) indicating which members are of interest and IContainer.DO_NOT_CHECK_EXISTENCE if the resource on which the method is called should not be checked for existence

Throws:

CoreException - if this request fails. Reasons include:

• the IContainer.INCLUDE_PHANTOMS flag is not specified and this resource does not exist.
• the IContainer.INCLUDE_PHANTOMS flag is not specified and this resource is a project that is not open.
• the IContainer.DO_NOT_CHECK_EXISTENCE flag is not specified and this resource does not exist.
• The visitor failed with this exception.

Since:

3.8

See Also:

• IContainer.INCLUDE_PHANTOMS
• IContainer.INCLUDE_TEAM_PRIVATE_MEMBERS
• IContainer.INCLUDE_HIDDEN
• IContainer.DO_NOT_CHECK_EXISTENCE
• isPhantom()
• isTeamPrivateMember()
• DEPTH_ZERO
• DEPTH_ONE
• DEPTH_INFINITE
• IResourceProxyVisitor.visit(IResourceProxy)

accept

void accept(IResourceVisitor visitor)
     throws CoreException

Accepts the given visitor. The visitor's visit method is called with this resource. If the visitor returns true, this method visits this resource's members.

This is a convenience method, fully equivalent to accept(visitor, IResource.DEPTH_INFINITE, IResource.NONE).

Parameters:

visitor - the visitor

Throws:

CoreException - if this method fails. Reasons include:

• This resource does not exist.
• The visitor failed with this exception.

See Also:

• IResourceVisitor.visit(IResource)
• accept(IResourceVisitor,int,int)

accept

void accept(IResourceVisitor visitor,
 int depth,
 boolean includePhantoms)
     throws CoreException

Accepts the given visitor. The visitor's visit method is called with this resource. If the visitor returns false, this resource's members are not visited.

The subtree under the given resource is traversed to the supplied depth.

This is a convenience method, fully equivalent to:

   accept(visitor, depth, includePhantoms ? IContainer.INCLUDE_PHANTOMS : IResource.NONE);
 

Parameters:

visitor - the visitor

depth - the depth to which members of this resource should be visited. One of DEPTH_ZERO, DEPTH_ONE, or DEPTH_INFINITE.

includePhantoms - true if phantom resources are of interest; false if phantom resources are not of interest.

Throws:

CoreException - if this request fails. Reasons include:

• includePhantoms is false and this resource does not exist.
• includePhantoms is true and this resource does not exist and is not a phantom.
• The visitor failed with this exception.

See Also:

• isPhantom()
• IResourceVisitor.visit(IResource)
• DEPTH_ZERO
• DEPTH_ONE
• DEPTH_INFINITE
• accept(IResourceVisitor,int,int)

accept

void accept(IResourceVisitor visitor,
 int depth,
 int memberFlags)
     throws CoreException

Accepts the given visitor. The visitor's visit method is called with this resource. If the visitor returns false, this resource's members are not visited.

The subtree under the given resource is traversed to the supplied depth.

No guarantees are made about the behavior of this method if resources are deleted or added during the traversal of this resource hierarchy. If resources are deleted during the traversal, they may still be passed to the visitor; if resources are created, they may not be passed to the visitor.

If the IContainer.INCLUDE_PHANTOMS flag is not specified in the member flags (recommended), only member resources that exists are visited. If the IContainer.INCLUDE_PHANTOMS flag is specified, the visit also includes any phantom member resource that the workspace is keeping track of.

If the IContainer.INCLUDE_TEAM_PRIVATE_MEMBERS flag is not specified (recommended), team private members are not visited. If the IContainer.INCLUDE_TEAM_PRIVATE_MEMBERS flag is specified in the member flags, team private member resources are visited as well.

If the IContainer.EXCLUDE_DERIVED flag is not specified (recommended), derived resources are visited. If the IContainer.EXCLUDE_DERIVED flag is specified in the member flags, derived resources are not visited.

If the IContainer.INCLUDE_HIDDEN flag is not specified (recommended), hidden resources will not be visited. If the IContainer.INCLUDE_HIDDEN flag is specified in the member flags, hidden resources are visited as well.

If the IContainer.DO_NOT_CHECK_EXISTENCE flag is not specified (recommended), the resource is checked for existence before the visitor's visit method is called. If the IContainer.DO_NOT_CHECK_EXISTENCE flag is specified in the member flags, the resource is not checked for existence before the visitor's visit method is called. Children of the resource are never checked for existence.

Parameters:

visitor - the visitor

depth - the depth to which members of this resource should be visited. One of DEPTH_ZERO, DEPTH_ONE, or DEPTH_INFINITE.

memberFlags - bit-wise or of member flag constants (IContainer.INCLUDE_PHANTOMS, IContainer.INCLUDE_TEAM_PRIVATE_MEMBERS, IContainer.INCLUDE_HIDDEN and IContainer.EXCLUDE_DERIVED) indicating which members are of interest and IContainer.DO_NOT_CHECK_EXISTENCE if the resource on which the method is called should not be checked for existence

Throws:

CoreException - if this request fails. Reasons include:

• the IContainer.INCLUDE_PHANTOMS flag is not specified and this resource does not exist.
• the IContainer.INCLUDE_PHANTOMS flag is not specified and this resource is a project that is not open.
• the IContainer.DO_NOT_CHECK_EXISTENCE flag is not specified and this resource does not exist.
• The visitor failed with this exception.

Since:

2.0

See Also:

• IContainer.INCLUDE_PHANTOMS
• IContainer.INCLUDE_TEAM_PRIVATE_MEMBERS
• IContainer.INCLUDE_HIDDEN
• IContainer.EXCLUDE_DERIVED
• IContainer.DO_NOT_CHECK_EXISTENCE
• isDerived()
• isPhantom()
• isTeamPrivateMember()
• isHidden()
• DEPTH_ZERO
• DEPTH_ONE
• DEPTH_INFINITE
• IResourceVisitor.visit(IResource)

clearHistory

void clearHistory(IProgressMonitor monitor)
           throws CoreException

Removes the local history of this resource and its descendents.

This operation is long-running; progress and cancellation are provided by the given progress monitor.

Parameters:

monitor - a progress monitor, or null if progress reporting and cancellation are not desired

Throws:

CoreException

copy

void copy(IPath destination,
 boolean force,
 IProgressMonitor monitor)
   throws CoreException

Makes a copy of this resource at the given path.

This is a convenience method, fully equivalent to:

   copy(destination, (force ? FORCE : IResource.NONE), monitor);
 

This operation changes resources; these changes will be reported in a subsequent resource change event that will include an indication that the resource copy has been added to its new parent.

This operation is long-running; progress and cancellation are provided by the given progress monitor.

Parameters:

destination - the destination path

force - a flag controlling whether resources that are not in sync with the local file system will be tolerated

monitor - a progress monitor, or null if progress reporting is not desired

Throws:

CoreException - if this resource could not be copied. Reasons include:

• This resource does not exist.
• This resource or one of its descendents is not local.
• The source or destination is the workspace root.
• The source is a project but the destination is not.
• The destination is a project but the source is not.
• The resource corresponding to the parent destination path does not exist.
• The resource corresponding to the parent destination path is a closed project.
• A resource at destination path does exist.
• This resource or one of its descendents is out of sync with the local file system and force is false.
• The workspace and the local file system are out of sync at the destination resource or one of its descendents.
• The source resource is a file and the destination path specifies a project.
• Resource changes are disallowed during certain types of resource change event notification. See IResourceChangeEvent for more details.

OperationCanceledException - if the operation is canceled. Cancellation can occur even if no progress monitor is provided.

copy

void copy(IPath destination,
 int updateFlags,
 IProgressMonitor monitor)
   throws CoreException

Makes a copy of this resource at the given path. The resource's descendents are copied as well. The path of this resource must not be a prefix of the destination path. The workspace root may not be the source or destination location of a copy operation, and a project can only be copied to another project. After successful completion, corresponding new resources will exist at the given path; their contents and properties will be copies of the originals. The original resources are not affected.

The supplied path may be absolute or relative. Absolute paths fully specify the new location for the resource, including its project. Relative paths are considered to be relative to the container of the resource being copied. A trailing separator is ignored.

Calling this method with a one segment absolute destination path is equivalent to calling:

   copy(workspace.newProjectDescription(folder.getName()),updateFlags,monitor);
 

When a resource is copied, its persistent properties are copied with it. Session properties and markers are not copied.

The FORCE update flag controls how this method deals with cases where the workspace is not completely in sync with the local file system. If FORCE is not specified, the method will only attempt to copy resources that are in sync with the corresponding files and directories in the local file system; it will fail if it encounters a resource that is out of sync with the file system. However, if FORCE is specified, the method copies all corresponding files and directories from the local file system, including ones that have been recently updated or created. Note that in both settings of the FORCE flag, the operation fails if the newly created resources in the workspace would be out of sync with the local file system; this ensures files in the file system cannot be accidentally overwritten.

The SHALLOW update flag controls how this method deals with linked resources. If SHALLOW is not specified, then the underlying contents of the linked resource will always be copied in the file system. In this case, the destination of the copy will never be a linked resource or contain any linked resources. If SHALLOW is specified when a linked resource is copied into another project, a new linked resource is created in the destination project that points to the same file system location. When a project containing linked resources is copied, the new project will contain the same linked resources pointing to the same file system locations. For both of these shallow cases, no files on disk under the linked resource are actually copied. With the SHALLOW flag, copying of linked resources into anything other than a project is not permitted. The SHALLOW update flag is ignored when copying non- linked resources.

The DERIVED update flag indicates that the new resource should immediately be set as a derived resource. Specifying this flag is equivalent to atomically calling setDerived(boolean) with a value of true immediately after creating the resource.

The TEAM_PRIVATE update flag indicates that the new resource should immediately be set as a team private resource. Specifying this flag is equivalent to atomically calling setTeamPrivateMember(boolean) with a value of true immediately after creating the resource.

The HIDDEN update flag indicates that the new resource should immediately be set as a hidden resource. Specifying this flag is equivalent to atomically calling setHidden(boolean) with a value of true immediately after creating the resource.

Update flags other than those listed above are ignored.

This operation changes resources; these changes will be reported in a subsequent resource change event that will include an indication that the resource copy has been added to its new parent.

An attempt will be made to copy the local history for this resource and its children, to the destination. Since local history existence is a safety-net mechanism, failure of this action will not result in automatic failure of the copy operation.

This operation is long-running; progress and cancellation are provided by the given progress monitor.

Parameters:

destination - the destination path

updateFlags - bit-wise or of update flag constants (FORCE, SHALLOW, DERIVED, TEAM_PRIVATE, HIDDEN)

monitor - a progress monitor, or null if progress reporting is not desired

Throws:

CoreException - if this resource could not be copied. Reasons include:

• This resource does not exist.
• This resource or one of its descendents is not local.
• The source or destination is the workspace root.
• The source is a project but the destination is not.
• The destination is a project but the source is not.
• The resource corresponding to the parent destination path does not exist.
• The resource corresponding to the parent destination path is a closed project.
• The source is a linked resource, but the destination is not a project, and SHALLOW is specified.
• A resource at destination path does exist.
• This resource or one of its descendants is out of sync with the local file system and FORCE is not specified.
• The workspace and the local file system are out of sync at the destination resource or one of its descendants.
• The source resource is a file and the destination path specifies a project.
• The source is a linked resource, and the destination path does not specify a project.
• The location of the source resource on disk is the same or a prefix of the location of the destination resource on disk.
• Resource changes are disallowed during certain types of resource change event notification. See IResourceChangeEvent for more details.

OperationCanceledException - if the operation is canceled. Cancellation can occur even if no progress monitor is provided.

Since:

2.0

See Also:

• FORCE
• SHALLOW
• DERIVED
• TEAM_PRIVATE
• IResourceRuleFactory.copyRule(IResource, IResource)

copy

void copy(IProjectDescription description,
 boolean force,
 IProgressMonitor monitor)
   throws CoreException

Makes a copy of this project using the given project description.

This is a convenience method, fully equivalent to:

   copy(description, (force ? FORCE : IResource.NONE), monitor);
 

This operation changes resources; these changes will be reported in a subsequent resource change event that will include an indication that the resource copy has been added to its new parent.

This operation is long-running; progress and cancellation are provided by the given progress monitor.

Parameters:

description - the destination project description

force - a flag controlling whether resources that are not in sync with the local file system will be tolerated

monitor - a progress monitor, or null if progress reporting is not desired

Throws:

CoreException - if this resource could not be copied. Reasons include:

• This resource does not exist.
• This resource or one of its descendents is not local.
• This resource is not a project.
• The project described by the given description already exists.
• This resource or one of its descendents is out of sync with the local file system and force is false.
• The workspace and the local file system are out of sync at the destination resource or one of its descendents.
• Resource changes are disallowed during certain types of resource change event notification. See IResourceChangeEvent for more details.

OperationCanceledException - if the operation is canceled. Cancellation can occur even if no progress monitor is provided.

copy

void copy(IProjectDescription description,
 int updateFlags,
 IProgressMonitor monitor)
   throws CoreException

Makes a copy of this project using the given project description. The project's descendents are copied as well. The description specifies the name, location and attributes of the new project. After successful completion, corresponding new resources will exist at the given path; their contents and properties will be copies of the originals. The original resources are not affected.

When a resource is copied, its persistent properties are copied with it. Session properties and markers are not copied.

The FORCE update flag controls how this method deals with cases where the workspace is not completely in sync with the local file system. If FORCE is not specified, the method will only attempt to copy resources that are in sync with the corresponding files and directories in the local file system; it will fail if it encounters a resource that is out of sync with the file system. However, if FORCE is specified, the method copies all corresponding files and directories from the local file system, including ones that have been recently updated or created. Note that in both settings of the FORCE flag, the operation fails if the newly created resources in the workspace would be out of sync with the local file system; this ensures files in the file system cannot be accidentally overwritten.

The SHALLOW update flag controls how this method deals with linked resources. If SHALLOW is not specified, then the underlying contents of any linked resources in the project will always be copied in the file system. In this case, the destination of the copy will never contain any linked resources. If SHALLOW is specified when a project containing linked resources is copied, new linked resources are created in the destination project that point to the same file system locations. In this case, no files on disk under linked resources are actually copied. The SHALLOW update flag is ignored when copying non- linked resources.

Update flags other than FORCE or SHALLOW are ignored.

An attempt will be made to copy the local history for this resource and its children, to the destination. Since local history existence is a safety-net mechanism, failure of this action will not result in automatic failure of the copy operation.

This operation changes resources; these changes will be reported in a subsequent resource change event that will include an indication that the resource copy has been added to its new parent.

This operation is long-running; progress and cancellation are provided by the given progress monitor.

Parameters:

description - the destination project description

updateFlags - bit-wise or of update flag constants (FORCE and SHALLOW)

monitor - a progress monitor, or null if progress reporting is not desired

Throws:

CoreException - if this resource could not be copied. Reasons include:

• This resource does not exist.
• This resource or one of its descendents is not local.
• This resource is not a project.
• The project described by the given description already exists.
• This resource or one of its descendents is out of sync with the local file system and FORCE is not specified.
• The workspace and the local file system are out of sync at the destination resource or one of its descendents.
• Resource changes are disallowed during certain types of resource change event notification. See IResourceChangeEvent for more details.

OperationCanceledException - if the operation is canceled. Cancellation can occur even if no progress monitor is provided.

Since:

2.0

See Also:

• FORCE
• SHALLOW
• IResourceRuleFactory.copyRule(IResource, IResource)

createMarker

IMarker createMarker(String type)
              throws CoreException

Creates and returns the marker with the specified type on this resource. Marker type ids should be the id of an extension installed in the org.eclipse.core.resources.markers extension point. The specified type string must not be null.

Parameters:

type - the type of the marker to create

Returns:

the handle of the new marker

Throws:

CoreException - if this method fails. Reasons include:

• This resource does not exist.
• This resource is a project that is not open.

See Also:

• IResourceRuleFactory.markerRule(IResource)

createMarker

default IMarker createMarker(String type,
 Map<String,? extends Object> attributes)
                      throws CoreException

Creates and returns the marker with the specified type on this resource. Marker type ids should be the id of an extension installed in the org.eclipse.core.resources.markers extension point. The specified type string must not be null.

Note: default implementation is provided for backwards compatibility only and is not optimized for performance.

Parameters:

type - the type of the marker to create

attributes - a map of attribute names to attribute values (key type : String value type : String, Integer, or Boolean) or null

Returns:

the handle of the new marker

Throws:

CoreException - if this method fails. Reasons include:

• This resource does not exist.
• This resource is a project that is not open.

Since:

3.14

See Also:

• IResourceRuleFactory.markerRule(IResource)

createProxy

IResourceProxy createProxy()

Creates a resource proxy representing the current state of this resource.

Note that once a proxy has been created, it does not stay in sync with the corresponding resource. Changes to the resource after the proxy is created will not be reflected in the state of the proxy.

Returns:

A proxy representing this resource

Since:

3.2

delete

void delete(boolean force,
 IProgressMonitor monitor)
     throws CoreException

Deletes this resource from the workspace.

This is a convenience method, fully equivalent to:

   delete(force ? FORCE : IResource.NONE, monitor);
 

This method changes resources; these changes will be reported in a subsequent resource change event.

This method is long-running; progress and cancellation are provided by the given progress monitor.

Parameters:

force - a flag controlling whether resources that are not in sync with the local file system will be tolerated

monitor - a progress monitor, or null if progress reporting is not desired

Throws:

CoreException - if this method fails. Reasons include:

• This resource could not be deleted for some reason.
• This resource or one of its descendents is out of sync with the local file system and force is false.
• Resource changes are disallowed during certain types of resource change event notification. See IResourceChangeEvent for more details.

OperationCanceledException - if the operation is canceled. Cancellation can occur even if no progress monitor is provided.

See Also:

• delete(int,IProgressMonitor)

delete

void delete(int updateFlags,
 IProgressMonitor monitor)
     throws CoreException

Deletes this resource from the workspace. Deletion applies recursively to all members of this resource in a "best- effort" fashion. That is, all resources which can be deleted are deleted. Resources which could not be deleted are noted in a thrown exception. The method does not fail if resources do not exist; it fails only if resources could not be deleted.

Deleting a non-linked resource also deletes its contents from the local file system. In the case of a file or folder resource, the corresponding file or directory in the local file system is deleted. Deleting an open project recursively deletes its members; deleting a closed project just gets rid of the project itself (closed projects have no members); files in the project's local content area are retained; referenced projects are unaffected.

Deleting a linked resource does not delete its contents from the file system, it just removes that resource and its children from the workspace. Deleting children of linked resources does remove the contents from the file system.

Deleting a resource also deletes its session and persistent properties and markers.

Deleting a non-project resource which has sync information converts the resource to a phantom and retains the sync information for future use.

Deleting the workspace root resource recursively deletes all projects, and removes all markers, properties, sync info and other data related to the workspace root; the root resource itself is not deleted, however.

This method changes resources; these changes will be reported in a subsequent resource change event.

This method is long-running; progress and cancellation are provided by the given progress monitor.

The FORCE update flag controls how this method deals with cases where the workspace is not completely in sync with the local file system. If FORCE is not specified, the method will only attempt to delete files and directories in the local file system that correspond to, and are in sync with, resources in the workspace; it will fail if it encounters a file or directory in the file system that is out of sync with the workspace. This option ensures there is no unintended data loss; it is the recommended setting. However, if FORCE is specified, the method will ruthlessly attempt to delete corresponding files and directories in the local file system, including ones that have been recently updated or created.

The KEEP_HISTORY update flag controls whether or not files that are about to be deleted from the local file system have their current contents saved in the workspace's local history. The local history mechanism serves as a safety net to help the user recover from mistakes that might otherwise result in data loss. Specifying KEEP_HISTORY is recommended except in circumstances where past states of the files are of no conceivable interest to the user. Note that local history is maintained with each individual project, and gets discarded when a project is deleted from the workspace. Hence KEEP_HISTORY is only really applicable when deleting files and folders, but not projects.

The ALWAYS_DELETE_PROJECT_CONTENT update flag controls how project deletions are handled. If ALWAYS_DELETE_PROJECT_CONTENT is specified, then the files and folders in a project's local content area are deleted, regardless of whether the project is open or closed; FORCE is assumed regardless of whether it is specified. If NEVER_DELETE_PROJECT_CONTENT is specified, then the files and folders in a project's local content area are retained, regardless of whether the project is open or closed; the FORCE flag is ignored. If neither of these flags is specified, files and folders in a project's local content area from open projects (subject to the FORCE flag), but never from closed projects.

Parameters:

updateFlags - bit-wise or of update flag constants ( FORCE, KEEP_HISTORY, ALWAYS_DELETE_PROJECT_CONTENT, and NEVER_DELETE_PROJECT_CONTENT)

monitor - a progress monitor, or null if progress reporting is not desired

Throws:

CoreException - if this method fails. Reasons include:

• This resource could not be deleted for some reason.
• This resource or one of its descendents is out of sync with the local file system and FORCE is not specified.
• Resource changes are disallowed during certain types of resource change event notification. See IResourceChangeEvent for more details.

OperationCanceledException - if the operation is canceled. Cancellation can occur even if no progress monitor is provided.

Since:

2.0

See Also:

• IFile.delete(boolean, boolean, IProgressMonitor)
• IFolder.delete(boolean, boolean, IProgressMonitor)
• FORCE
• KEEP_HISTORY
• ALWAYS_DELETE_PROJECT_CONTENT
• NEVER_DELETE_PROJECT_CONTENT
• IResourceRuleFactory.deleteRule(IResource)

deleteMarkers

void deleteMarkers(String type,
 boolean includeSubtypes,
 int depth)
            throws CoreException

Deletes all markers on this resource of the given type, and, optionally, deletes such markers from its children. If includeSubtypes is false, only markers whose type exactly matches the given type are deleted.

This method changes resources; these changes will be reported in a subsequent resource change event.

Parameters:

type - the type of marker to consider, or null to indicate all types

includeSubtypes - whether or not to consider sub-types of the given type

depth - how far to recurse (see IResource.DEPTH_* )

Throws:

CoreException - if this method fails. Reasons include:

• This resource does not exist.
• This resource is a project that is not open.
• Resource changes are disallowed during certain types of resource change event notification. See IResourceChangeEvent for more details.

See Also:

• DEPTH_ZERO
• DEPTH_ONE
• DEPTH_INFINITE
• IResourceRuleFactory.markerRule(IResource)

equals

boolean equals(Object other)

Compares two objects for equality; for resources, equality is defined in terms of their handles: same resource type, equal full paths, and identical workspaces. Resources are not equal to objects other than resources.

Overrides:

equals in class Object

Parameters:

other - the other object

Returns:

an indication of whether the objects are equals

See Also:

• getType()
• getFullPath()
• getWorkspace()

exists

boolean exists()

Returns whether this resource exists in the workspace.

IResource objects are lightweight handle objects used to access resources in the workspace. However, having a handle object does not necessarily mean the workspace really has such a resource. When the workspace does have a genuine resource of a matching type, the resource is said to exist, and this method returns true; in all other cases, this method returns false. In particular, it returns false if the workspace has no resource at that path, or if it has a resource at that path with a type different from the type of this resource handle.

Note that no resources ever exist under a project that is closed; opening a project may bring some resources into existence.

The name and path of a resource handle may be invalid. However, validation checks are done automatically as a resource is created; this means that any resource that exists can be safely assumed to have a valid name and path.

Returns:

true if the resource exists, otherwise false

findMarker

IMarker findMarker(long id)
            throws CoreException

Returns the marker with the specified id on this resource, Returns null if there is no matching marker.

Parameters:

id - the id of the marker to find

Returns:

a marker or null

Throws:

CoreException - if this method fails. Reasons include:

• This resource does not exist.
• This resource is a project that is not open.

findMarkers

IMarker[] findMarkers(String type,
 boolean includeSubtypes,
 int depth)
               throws CoreException

Returns all markers of the specified type on this resource, and, optionally, on its children. If includeSubtypes is false, only markers whose type exactly matches the given type are returned. Returns an empty array if there are no matching markers.

Parameters:

type - the type of marker to consider, or null to indicate all types

includeSubtypes - whether or not to consider sub-types of the given type

depth - how far to recurse (see IResource.DEPTH_* )

Returns:

an array of markers

Throws:

CoreException - if this method fails. Reasons include:

• This resource does not exist.
• This resource is a project that is not open.

See Also:

• DEPTH_ZERO
• DEPTH_ONE
• DEPTH_INFINITE

findMaxProblemSeverity

int findMaxProblemSeverity(String type,
 boolean includeSubtypes,
 int depth)
                    throws CoreException

Returns the maximum value of the IMarker.SEVERITY attribute across markers of the specified type on this resource, and, optionally, on its children. If includeSubtypesis false, only markers whose type exactly matches the given type are considered. Returns -1 if there are no matching markers. Returns IMarker.SEVERITY_ERROR if any of the markers has a severity greater than or equal to IMarker.SEVERITY_ERROR.

Parameters:

type - the type of marker to consider (normally IMarker.PROBLEM or one of its subtypes), or null to indicate all types

includeSubtypes - whether or not to consider sub-types of the given type

depth - how far to recurse (see IResource.DEPTH_* )

Returns:

IMarker.SEVERITY_INFO, IMarker.SEVERITY_WARNING, IMarker.SEVERITY_ERROR, or -1

Throws:

CoreException - if this method fails. Reasons include:

• This resource does not exist.
• This resource is a project that is not open.

Since:

3.3

See Also:

• DEPTH_ZERO
• DEPTH_ONE
• DEPTH_INFINITE

getFileExtension

String getFileExtension()

Returns the file extension portion of this resource's name, or null if it does not have one.

The file extension portion is defined as the string following the last period (".") character in the name. If there is no period in the name, the path has no file extension portion. If the name ends in a period, the file extension portion is the empty string.

This is a resource handle operation; the resource need not exist.

Returns:

a string file extension

See Also:

• getName()

getFullPath

IPath getFullPath()

Returns the full, absolute path of this resource relative to the workspace.

This is a resource handle operation; the resource need not exist. If this resource does exist, its path can be safely assumed to be valid.

A resource's full path indicates the route from the root of the workspace to the resource. Within a workspace, there is exactly one such path for any given resource. The first segment of these paths name a project; remaining segments, folders and/or files within that project. The returned path never has a trailing separator. The path of the workspace root is Path.ROOT.

Since absolute paths contain the name of the project, they are vulnerable when the project is renamed. For most situations, project-relative paths are recommended over absolute paths.

Returns:

the absolute path of this resource

See Also:

• getProjectRelativePath()
• IPath.ROOT

getLocalTimeStamp

long getLocalTimeStamp()

Returns a cached value of the local time stamp on disk for this resource, or NULL_STAMP if the resource does not exist or is not local or is not accessible. The return value is represented as the number of milliseconds since the epoch (00:00:00 GMT, January 1, 1970). The returned value may not be the same as the actual time stamp on disk if the file has been modified externally since the last local refresh.

Note that due to varying file system timing granularities, this value is not guaranteed to change every time the file is modified. For a more reliable indication of whether the file has changed, use getModificationStamp().

Returns:

a local file system time stamp, or NULL_STAMP.

Since:

3.0

getLocation

IPath getLocation()

Returns the absolute path in the local file system to this resource, or null if no path can be determined.

If this resource is the workspace root, this method returns the absolute local file system path of the platform working area.

If this resource is a project that exists in the workspace, this method returns the path to the project's local content area. This is true regardless of whether the project is open or closed. This value will be null in the case where the location is relative to an undefined workspace path variable.

If this resource is a linked resource under a project that is open, this method returns the resolved path to the linked resource's local contents. This value will be null in the case where the location is relative to an undefined workspace path variable.

If this resource is a file or folder under a project that exists, or a linked resource under a closed project, this method returns a (non- null) path computed from the location of the project's local content area and the project- relative path of the file or folder. This is true regardless of whether the file or folders exists, or whether the project is open or closed. In the case of linked resources, the location of a linked resource within a closed project is too computed from the location of the project's local content area and the project-relative path of the resource. If the linked resource resides in an open project then its location is computed according to the link.

If this resource is a project that does not exist in the workspace, or a file or folder below such a project, this method returns null. This method also returns null if called on a resource that is not stored in the local file system. For such resources getLocationURI() should be used instead.

Returns:

the absolute path of this resource in the local file system, or null if no path can be determined

See Also:

• getRawLocation()
• getLocationURI()
• IProjectDescription.setLocation(IPath)
• Platform.getLocation()

getLocationURI

URI getLocationURI()

Returns the absolute URI of this resource, or null if no URI can be determined.

If this resource is the workspace root, this method returns the absolute location of the platform working area.

If this resource is a project that exists in the workspace, this method returns the URI to the project's local content area. This is true regardless of whether the project is open or closed. This value will be null in the case where the location is relative to an undefined workspace path variable.

If this resource is a linked resource under a project that is open, this method returns the resolved URI to the linked resource's local contents. This value will be null in the case where the location is relative to an undefined workspace path variable.

If this resource is a file or folder under a project that exists, or a linked resource under a closed project, this method returns a (non- null) URI computed from the location of the project's local content area and the project- relative path of the file or folder. This is true regardless of whether the file or folders exists, or whether the project is open or closed. In the case of linked resources, the location of a linked resource within a closed project is computed from the location of the project's local content area and the project-relative path of the resource. If the linked resource resides in an open project then its location is computed according to the link.

If this resource is a project that does not exist in the workspace, or a file or folder below such a project, this method returns null.

Returns:

the absolute URI of this resource, or null if no URI can be determined

Since:

3.2

See Also:

• getRawLocation()
• IProjectDescription.setLocation(IPath)
• Platform.getLocation()
• URI

getMarker

IMarker getMarker(long id)

Returns a marker handle with the given id on this resource. This resource is not checked to see if it has such a marker. The returned marker need not exist. This resource need not exist.

Parameters:

id - the id of the marker

Returns:

the specified marker handle

See Also:

• IMarker.getId()

getModificationStamp

long getModificationStamp()

Returns a non-negative modification stamp, or NULL_STAMP if the resource does not exist or is not local or is not accessible.

A resource's modification stamp gets updated each time a resource is modified. If a resource's modification stamp is the same, the resource has not changed. Conversely, if a resource's modification stamp is different, some aspect of it (other than properties) has been modified at least once (possibly several times). Resource modification stamps are preserved across project close/re-open, and across workspace shutdown/restart. The magnitude or sign of the numerical difference between two modification stamps is not significant.

The following things affect a resource's modification stamp:

• creating a non-project resource (changes from NULL_STAMP)
• changing the contents of a file
• touching a resource
• setting the attributes of a project presented in a project description
• deleting a resource (changes to NULL_STAMP)
• moving a resource (source changes to NULL_STAMP, destination changes from NULL_STAMP)
• copying a resource (destination changes from NULL_STAMP)
• making a resource local
• closing a project (changes to NULL_STAMP)
• opening a project (changes from NULL_STAMP)
• adding or removing a project nature (changes from NULL_STAMP)

The following things do not affect a resource's modification stamp:

• "reading" a resource
• adding or removing a member of a project or folder
• setting a session property
• setting a persistent property
• saving the workspace
• shutting down and re-opening a workspace

Returns:

the modification stamp, or NULL_STAMP if this resource either does not exist or exists as a closed project

See Also:

• NULL_STAMP
• revertModificationStamp(long)

getName

String getName()

Returns the name of this resource. The name of a resource is synonymous with the last segment of its full (or project-relative) path for all resources other than the workspace root. The workspace root's name is the empty string.

This is a resource handle operation; the resource need not exist.

If this resource exists, its name can be safely assumed to be valid.

Returns:

the name of the resource

See Also:

• getFullPath()
• getProjectRelativePath()

getPathVariableManager

IPathVariableManager getPathVariableManager()

Returns the path variable manager for this resource.

Returns:

the path variable manager

Since:

3.6

See Also:

• IPathVariableManager

getParent

IContainer getParent()

Returns the resource which is the parent of this resource, or null if it has no parent (that is, this resource is the workspace root).

The full path of the parent resource is the same as this resource's full path with the last segment removed.

This is a resource handle operation; neither the resource nor the resulting resource need exist.

Returns:

the parent resource of this resource, or null if it has no parent

getPersistentProperties

Map<QualifiedName,String> getPersistentProperties()
                                           throws CoreException

Returns a copy of the map of this resource's persistent properties. Returns an empty map if this resource has no persistent properties.

Returns:

the map containing the persistent properties where the key is the QualifiedName of the property and the value is the String value of the property.

Throws:

CoreException - if this method fails. Reasons include:

• This resource does not exist.
• This resource is not local.
• This resource is a project that is not open.

Since:

3.4

See Also:

• setPersistentProperty(QualifiedName, String)

getPersistentProperty

String getPersistentProperty(QualifiedName key)
                      throws CoreException

Returns the value of the persistent property of this resource identified by the given key, or null if this resource has no such property.

Parameters:

key - the qualified name of the property

Returns:

the string value of the property, or null if this resource has no such property

Throws:

CoreException - if this method fails. Reasons include:

• This resource does not exist.
• This resource is not local.
• This resource is a project that is not open.

See Also:

• setPersistentProperty(QualifiedName, String)

getProject

IProject getProject()

Returns the project which contains this resource. Returns itself for projects and null for the workspace root.

A resource's project is the one named by the first segment of its full path.

This is a resource handle operation; neither the resource nor the resulting project need exist.

Returns:

the project handle

getProjectRelativePath

IPath getProjectRelativePath()

Returns a relative path of this resource with respect to its project. Returns the empty path for projects and the workspace root.

This is a resource handle operation; the resource need not exist. If this resource does exist, its path can be safely assumed to be valid.

A resource's project-relative path indicates the route from the project to the resource. Within a project, there is exactly one such path for any given resource. The returned path never has a trailing slash.

Project-relative paths are recommended over absolute paths, since the former are not affected if the project is renamed.

Returns:

the relative path of this resource with respect to its project

See Also:

• getFullPath()
• getProject()
• IPath.EMPTY

getRawLocation

IPath getRawLocation()

Returns the file system location of this resource, or null if no path can be determined. The returned path will either be an absolute file system path, or a relative path whose first segment is the name of a workspace path variable.

If this resource is an existing project, the returned path will be equal to the location path in the project description. If this resource is a linked resource in an open project, the returned path will be equal to the location path supplied when the linked resource was created. In all other cases, this method returns the same value as getLocation().

Returns:

the raw path of this resource in the local file system, or null if no path can be determined

Since:

2.1

See Also:

• getLocation()
• IFile.createLink(IPath, int, IProgressMonitor)
• IFolder.createLink(IPath, int, IProgressMonitor)
• IPathVariableManager
• IProjectDescription.getLocation()

getRawLocationURI

URI getRawLocationURI()

Returns the raw location of this resource, or null if no path can be determined. The returned path will either be an absolute URI, or a relative URI whose first path segment is the name of a workspace path variable. Since the returned location may contain unresolved variables, the resulting URI is typically only suitable for display. To access or manipulate the actual resource backing location, clients should obtain the resolved location using getLocationURI().

If this resource is an existing project, the returned location will be equal to the location URI in the project description. If this resource is a linked resource in an open project, the returned location will be equal to the location URI supplied when the linked resource was created. In all other cases, this method returns the same value as getLocationURI().

Returns:

the raw location of this resource, or null if no location can be determined

Since:

3.2

See Also:

• getLocationURI()
• IFile.createLink(URI, int, IProgressMonitor)
• IFolder.createLink(URI, int, IProgressMonitor)
• IPathVariableManager
• IProjectDescription.getLocationURI()

getResourceAttributes

ResourceAttributes getResourceAttributes()

Gets this resource's extended attributes from the file system, or null if the attributes could not be obtained.

Reasons for a null return value include:

• This resource does not exist.
• This resource is not local.
• This resource is a project that is not open.

Attributes that are not supported by the underlying file system will have a value of false.

Sample usage:

 
  IResource resource;
  ...
  ResourceAttributes attributes = resource.getResourceAttributes();
  if (attributes != null) {
     attributes.setExecutable(true);
     resource.setResourceAttributes(attributes);
  }
 
 

Returns:

the extended attributes from the file system, or null if they could not be obtained

Since:

3.1

See Also:

• setResourceAttributes(ResourceAttributes)
• ResourceAttributes

getSessionProperties

Map<QualifiedName,Object> getSessionProperties()
                                        throws CoreException

Returns a copy of the map of this resource's session properties. Returns an empty map if this resource has no session properties.

Returns:

the map containing the session properties where the key is the QualifiedName of the property and the value is the property value (an Object.

Throws:

CoreException - if this method fails. Reasons include:

• This resource does not exist.
• This resource is not local.
• This resource is a project that is not open.

Since:

3.4

See Also:

• setSessionProperty(QualifiedName, Object)

getSessionProperty

Object getSessionProperty(QualifiedName key)
                   throws CoreException

Returns the value of the session property of this resource identified by the given key, or null if this resource has no such property.

Parameters:

key - the qualified name of the property

Returns:

the value of the session property, or null if this resource has no such property

Throws:

CoreException - if this method fails. Reasons include:

• This resource does not exist.
• This resource is not local.
• This resource is a project that is not open.

See Also:

• setSessionProperty(QualifiedName, Object)

getType

int getType()

Returns the type of this resource. The returned value will be one of FILE, FOLDER, PROJECT, ROOT.

• All resources of type FILE implement IFile.
• All resources of type FOLDER implement IFolder.
• All resources of type PROJECT implement IProject.
• All resources of type ROOT implement IWorkspaceRoot.

This is a resource handle operation; the resource need not exist in the workspace.

Returns:

the type of this resource

See Also:

• FILE
• FOLDER
• PROJECT
• ROOT

getWorkspace

IWorkspace getWorkspace()

Returns the workspace which manages this resource.

This is a resource handle operation; the resource need not exist in the workspace.

Returns:

the workspace

isAccessible

boolean isAccessible()

Returns whether this resource is accessible. For files and folders, this is equivalent to existing; for projects, this is equivalent to existing and being open. The workspace root is always accessible.

Returns:

true if this resource is accessible, and false otherwise

See Also:

• exists()
• IProject.isOpen()

isDerived

boolean isDerived()

Returns whether this resource subtree is marked as derived. Returns false if this resource does not exist.

This is a convenience method, fully equivalent to isDerived(IResource.NONE).

Returns:

true if this resource is marked as derived, and false otherwise

Since:

2.0

See Also:

• setDerived(boolean)

isDerived

boolean isDerived(int options)

Returns whether this resource subtree is marked as derived. Returns false if this resource does not exist.

The CHECK_ANCESTORS option flag indicates whether this method should consider ancestor resources in its calculation. If the CHECK_ANCESTORS flag is present, this method will return true, if this resource, or any parent resource, is marked as derived. If the CHECK_ANCESTORS option flag is not specified, this method returns false for children of derived resources.

Parameters:

options - bit-wise or of option flag constants (only CHECK_ANCESTORS is applicable)

Returns:

true if this resource subtree is derived, and false otherwise

Since:

3.4

See Also:

• setDerived(boolean)

isHidden

boolean isHidden()

Returns whether this resource is hidden in the resource tree. Returns false if this resource does not exist.

This operation is not related to the file system hidden attribute accessible using ResourceAttributes.isHidden().

Returns:

true if this resource is hidden, and false otherwise

Since:

3.4

See Also:

• setHidden(boolean)

isHidden

boolean isHidden(int options)

Returns whether this resource is hidden in the resource tree. Returns false if this resource does not exist.

This operation is not related to the file system hidden attribute accessible using ResourceAttributes.isHidden().

The CHECK_ANCESTORS option flag indicates whether this method should consider ancestor resources in its calculation. If the CHECK_ANCESTORS flag is present, this method will return true if this resource, or any parent resource, is a hidden resource. If the CHECK_ANCESTORS option flag is not specified, this method returns false for children of hidden resources.

Parameters:

options - bit-wise or of option flag constants (only CHECK_ANCESTORS is applicable)

Returns:

true if this resource is hidden , and false otherwise

Since:

3.5

See Also:

• setHidden(boolean)

isLinked

boolean isLinked()

Returns whether this resource has been linked to a location other than the default location calculated by the platform.

This is a convenience method, fully equivalent to isLinked(IResource.NONE).

Returns:

true if this resource is linked, and false otherwise

Since:

2.1

See Also:

• IFile.createLink(IPath, int, IProgressMonitor)
• IFolder.createLink(IPath, int, IProgressMonitor)

isVirtual

boolean isVirtual()

Returns whether this resource is a virtual resource. Returns true for folders that have been marked virtual using the VIRTUAL update flag. Returns false in all other cases, including the case where this resource does not exist. The workspace root, projects and files currently cannot be made virtual.

Returns:

true if this resource is virtual, and false otherwise

Since:

3.6

See Also:

• IFile.create(java.io.InputStream, int, IProgressMonitor)
• VIRTUAL

isLinked

boolean isLinked(int options)

Returns true if this resource has been linked to a location other than the default location calculated by the platform. This location can be outside the project's content area or another location within the project. Returns false in all other cases, including the case where this resource does not exist. The workspace root and projects are never linked.

This method returns true for a resource that has been linked using the createLink method.

The CHECK_ANCESTORS option flag indicates whether this method should consider ancestor resources in its calculation. If the CHECK_ANCESTORS flag is present, this method will return true if this resource, or any parent resource, is a linked resource. If the CHECK_ANCESTORS option flag is not specified, this method returns false for children of linked resources.

Parameters:

options - bit-wise or of option flag constants (only CHECK_ANCESTORS is applicable)

Returns:

true if this resource is linked, and false otherwise

Since:

3.2

See Also:

• IFile.createLink(IPath, int, IProgressMonitor)
• IFolder.createLink(IPath, int, IProgressMonitor)

isLocal

@Deprecated
boolean isLocal(int depth)

Deprecated.

This API is no longer in use. Note that this API is unrelated to whether the resource is in the local file system versus some other file system.

Returns whether this resource and its members (to the specified depth) are expected to have their contents (and properties) available locally. Returns false in all other cases, including the case where this resource does not exist. The workspace root and projects are always local.

When a resource is not local, its content and properties are unavailable for both reading and writing.

Parameters:

depth - valid values are DEPTH_ZERO, DEPTH_ONE, or DEPTH_INFINITE

Returns:

true if this resource is local, and false otherwise

See Also:

• setLocal(boolean, int, IProgressMonitor)

isPhantom

boolean isPhantom()

Returns whether this resource is a phantom resource.

The workspace uses phantom resources to remember outgoing deletions and incoming additions relative to an external synchronization partner. Phantoms appear and disappear automatically as a byproduct of synchronization. Since the workspace root cannot be synchronized in this way, it is never a phantom. Projects are also never phantoms.

The key point is that phantom resources do not exist (in the technical sense of exists, which returns false for phantoms) are therefore invisible except through a handful of phantom-enabled API methods (notably IContainer.members(boolean)).

Returns:

true if this resource is a phantom resource, and false otherwise

See Also:

• exists()
• IContainer.members(boolean)
• IContainer.findMember(String, boolean)
• IContainer.findMember(IPath, boolean)
• ISynchronizer

isReadOnly

@Deprecated
boolean isReadOnly()

Deprecated.

use getResourceAttributes()

Returns whether this resource is marked as read-only in the file system.

Returns:

true if this resource is read-only, false otherwise

isSynchronized

boolean isSynchronized(int depth)

Returns whether this resource and its descendents to the given depth are considered to be in sync with the local file system.

A resource is considered to be in sync if all of the following conditions are true:

• The resource exists in both the workspace and the file system.
• The timestamp in the file system has not changed since the last synchronization.
• The resource in the workspace is of the same type as the corresponding file in the file system (they are either both files or both folders).

A resource is also considered to be in sync if it is missing from both the workspace and the file system. In all other cases the resource is considered to be out of sync.

This operation interrogates files and folders in the local file system; depending on the speed of the local file system and the requested depth, this operation may be time-consuming.

Parameters:

depth - the depth (one of DEPTH_ZERO, DEPTH_ONE, or DEPTH_INFINITE)

Returns:

true if this resource and its descendents to the specified depth are synchronized, and false in all other cases

Since:

2.0

See Also:

• DEPTH_ZERO
• DEPTH_ONE
• DEPTH_INFINITE
• refreshLocal(int, IProgressMonitor)

isTeamPrivateMember

boolean isTeamPrivateMember()

Returns whether this resource is a team private member of its parent container. Returns false if this resource does not exist.

Returns:

true if this resource is a team private member, and false otherwise

Since:

2.0

See Also:

• setTeamPrivateMember(boolean)

isTeamPrivateMember

boolean isTeamPrivateMember(int options)

Returns whether this resource is a team private member of its parent container. Returns false if this resource does not exist.

The CHECK_ANCESTORS option flag indicates whether this method should consider ancestor resources in its calculation. If the CHECK_ANCESTORS flag is present, this method will return true if this resource, or any parent resource, is a team private member. If the CHECK_ANCESTORS option flag is not specified, this method returns false for children of team private members.

Parameters:

options - bit-wise or of option flag constants (only CHECK_ANCESTORS is applicable)

Returns:

true if this resource is a team private member, and false otherwise

Since:

3.5

See Also:

• setTeamPrivateMember(boolean)

move

void move(IPath destination,
 boolean force,
 IProgressMonitor monitor)
   throws CoreException

Moves this resource so that it is located at the given path.

This is a convenience method, fully equivalent to:

   move(destination, force ? FORCE : IResource.NONE, monitor);
 

This method changes resources; these changes will be reported in a subsequent resource change event that will include an indication that the resource has been removed from its parent and that a corresponding resource has been added to its new parent. Additional information provided with resource delta shows that these additions and removals are related.

This method is long-running; progress and cancellation are provided by the given progress monitor.

Parameters:

destination - the destination path

force - a flag controlling whether resources that are not in sync with the local file system will be tolerated

monitor - a progress monitor, or null if progress reporting is not desired

Throws:

CoreException - if this resource could not be moved. Reasons include:

• This resource does not exist.
• This resource or one of its descendents is not local.
• The source or destination is the workspace root.
• The source is a project but the destination is not.
• The destination is a project but the source is not.
• The resource corresponding to the parent destination path does not exist.
• The resource corresponding to the parent destination path is a closed project.
• A resource at destination path does exist.
• A resource of a different type exists at the destination path.
• This resource or one of its descendents is out of sync with the local file system and force is false.
• The workspace and the local file system are out of sync at the destination resource or one of its descendents.
• Resource changes are disallowed during certain types of resource change event notification. See IResourceChangeEvent for more details.
• The source resource is a file and the destination path specifies a project.

OperationCanceledException - if the operation is canceled. Cancellation can occur even if no progress monitor is provided.

See Also:

• IResourceDelta.getFlags()

move

void move(IPath destination,
 int updateFlags,
 IProgressMonitor monitor)
   throws CoreException

Moves this resource so that it is located at the given path. The path of the resource must not be a prefix of the destination path. The workspace root may not be the source or destination location of a move operation, and a project can only be moved to another project. After successful completion, the resource and any direct or indirect members will no longer exist; but corresponding new resources will now exist at the given path.

The supplied path may be absolute or relative. Absolute paths fully specify the new location for the resource, including its project. Relative paths are considered to be relative to the container of the resource being moved. A trailing slash is ignored.

Calling this method with a one segment absolute destination path is equivalent to calling:

         IProjectDescription description = getDescription();
         description.setName(path.lastSegment());
         move(description, updateFlags, monitor);
 

When a resource moves, its session and persistent properties move with it. Likewise for all other attributes of the resource including markers.

The FORCE update flag controls how this method deals with cases where the workspace is not completely in sync with the local file system. If FORCE is not specified, the method will only attempt to move resources that are in sync with the corresponding files and directories in the local file system; it will fail if it encounters a resource that is out of sync with the file system. However, if FORCE is specified, the method moves all corresponding files and directories from the local file system, including ones that have been recently updated or created. Note that in both settings of the FORCE flag, the operation fails if the newly created resources in the workspace would be out of sync with the local file system; this ensures files in the file system cannot be accidentally overwritten.

The KEEP_HISTORY update flag controls whether or not file that are about to be deleted from the local file system have their current contents saved in the workspace's local history. The local history mechanism serves as a safety net to help the user recover from mistakes that might otherwise result in data loss. Specifying KEEP_HISTORY is recommended except in circumstances where past states of the files are of no conceivable interest to the user. Note that local history is maintained with each individual project, and gets discarded when a project is deleted from the workspace. Hence KEEP_HISTORY is only really applicable when moving files and folders, but not whole projects.

If this resource is not a project, an attempt will be made to copy the local history for this resource and its children, to the destination. Since local history existence is a safety-net mechanism, failure of this action will not result in automatic failure of the move operation.

The SHALLOW update flag controls how this method deals with linked resources. If SHALLOW is not specified, then the underlying contents of the linked resource will always be moved in the file system. In this case, the destination of the move will never be a linked resource or contain any linked resources. If SHALLOW is specified when a linked resource is moved into another project, a new linked resource is created in the destination project that points to the same file system location. When a project containing linked resources is moved, the new project will contain the same linked resources pointing to the same file system locations. For either of these cases, no files on disk under the linked resource are actually moved. With the SHALLOW flag, moving of linked resources into anything other than a project is not permitted. The SHALLOW update flag is ignored when moving non- linked resources.

Update flags other than FORCE, KEEP_HISTORYand SHALLOW are ignored.

This method changes resources; these changes will be reported in a subsequent resource change event that will include an indication that the resource has been removed from its parent and that a corresponding resource has been added to its new parent. Additional information provided with resource delta shows that these additions and removals are related.

This method is long-running; progress and cancellation are provided by the given progress monitor.

Parameters:

destination - the destination path

updateFlags - bit-wise or of update flag constants (FORCE, KEEP_HISTORY and SHALLOW)

monitor - a progress monitor, or null if progress reporting is not desired

Throws:

CoreException - if this resource could not be moved. Reasons include:

• This resource does not exist.
• This resource or one of its descendents is not local.
• The source or destination is the workspace root.
• The source is a project but the destination is not.
• The destination is a project but the source is not.
• The resource corresponding to the parent destination path does not exist.
• The resource corresponding to the parent destination path is a closed project.
• The source is a linked resource, but the destination is not a project and SHALLOW is specified.
• A resource at destination path does exist.
• A resource of a different type exists at the destination path.
• This resource or one of its descendents is out of sync with the local file system and force is false.
• The workspace and the local file system are out of sync at the destination resource or one of its descendents.
• The source resource is a file and the destination path specifies a project.
• The location of the source resource on disk is the same or a prefix of the location of the destination resource on disk.
• Resource changes are disallowed during certain types of resource change event notification. See IResourceChangeEvent for more details.

OperationCanceledException - if the operation is canceled. Cancellation can occur even if no progress monitor is provided.

Since:

2.0

See Also:

• IResourceDelta.getFlags()
• FORCE
• KEEP_HISTORY
• SHALLOW
• IResourceRuleFactory.moveRule(IResource, IResource)

move

void move(IProjectDescription description,
 boolean force,
 boolean keepHistory,
 IProgressMonitor monitor)
   throws CoreException

Renames or relocates this project so that it is the project specified by the given project description.

This is a convenience method, fully equivalent to:

   move(description, (keepHistory ? KEEP_HISTORY : IResource.NONE) | (force ? FORCE : IResource.NONE), monitor);
 

This operation changes resources; these changes will be reported in a subsequent resource change event that will include an indication that the resource has been removed from its parent and that a corresponding resource has been added to its new parent. Additional information provided with resource delta shows that these additions and removals are related.

This method is long-running; progress and cancellation are provided by the given progress monitor.

Parameters:

description - the destination project description

force - a flag controlling whether resources that are not in sync with the local file system will be tolerated

keepHistory - a flag indicating whether or not to keep local history for files

monitor - a progress monitor, or null if progress reporting is not desired

Throws:

CoreException - if this resource could not be moved. Reasons include:

• This resource does not exist.
• This resource or one of its descendents is not local.
• This resource is not a project.
• The project at the destination already exists.
• This resource or one of its descendents is out of sync with the local file system and force is false.
• The workspace and the local file system are out of sync at the destination resource or one of its descendents.
• Resource changes are disallowed during certain types of resource change event notification. See IResourceChangeEvent for more details.

OperationCanceledException - if the operation is canceled. Cancellation can occur even if no progress monitor is provided.

See Also:

• IResourceDelta.getFlags()

move

void move(IProjectDescription description,
 int updateFlags,
 IProgressMonitor monitor)
   throws CoreException

Renames or relocates this project so that it is the project specified by the given project description. The description specifies the name and location of the new project. After successful completion, the old project and any direct or indirect members will no longer exist; but corresponding new resources will now exist in the new project.

When a resource moves, its session and persistent properties move with it. Likewise for all the other attributes of the resource including markers.

When this project's location is the default location, then the directories and files on disk are moved to be in the location specified by the given description. If the given description specifies the default location for the project, the directories and files are moved to the default location. If the name in the given description is the same as this project's name and the location is different, then the project contents will be moved to the new location. In all other cases the directories and files on disk are left untouched. Parts of the supplied description other than the name and location are ignored.

The FORCE update flag controls how this method deals with cases where the workspace is not completely in sync with the local file system. If FORCE is not specified, the method will only attempt to move resources that are in sync with the corresponding files and directories in the local file system; it will fail if it encounters a resource that is out of sync with the file system. However, if FORCE is specified, the method moves all corresponding files and directories from the local file system, including ones that have been recently updated or created. Note that in both settings of the FORCE flag, the operation fails if the newly created resources in the workspace would be out of sync with the local file system; this ensures files in the file system cannot be accidentally overwritten.

The KEEP_HISTORY update flag controls whether or not file that are about to be deleted from the local file system have their current contents saved in the workspace's local history. The local history mechanism serves as a safety net to help the user recover from mistakes that might otherwise result in data loss. Specifying KEEP_HISTORY is recommended except in circumstances where past states of the files are of no conceivable interest to the user. Note that local history is maintained with each individual project, and gets discarded when a project is deleted from the workspace. Hence KEEP_HISTORY is only really applicable when moving files and folders, but not whole projects.

Local history information for this project and its children will not be moved to the destination.

The SHALLOW update flag controls how this method deals with linked resources. If SHALLOW is not specified, then the underlying contents of any linked resource will always be moved in the file system. In this case, the destination of the move will not contain any linked resources. If SHALLOW is specified when a project containing linked resources is moved, new linked resources are created in the destination project pointing to the same file system locations. In this case, no files on disk under any linked resource are actually moved. The SHALLOW update flag is ignored when moving non- linked resources.

The REPLACE update flag controls how this method deals with a change of location. If the location changes and the REPLACE flag is not specified, then the projects contents on disk are moved to the new location. If the location changes and the REPLACE flag is specified, then the project is reoriented to correspond to the new location, but no contents are moved on disk. The contents already on disk at the new location become the project contents. If the new project location does not exist, it will be created.

Update flags other than those listed above are ignored.

This method changes resources; these changes will be reported in a subsequent resource change event that will include an indication that the resource has been removed from its parent and that a corresponding resource has been added to its new parent. Additional information provided with resource delta shows that these additions and removals are related.

This method is long-running; progress and cancellation are provided by the given progress monitor.

Parameters:

description - the destination project description

updateFlags - bit-wise or of update flag constants (FORCE, KEEP_HISTORY, SHALLOW and REPLACE).

monitor - a progress monitor, or null if progress reporting is not desired

Throws:

CoreException - if this resource could not be moved. Reasons include:

• This resource does not exist.
• This resource or one of its descendents is not local.
• This resource is not a project.
• The project at the destination already exists.
• This resource or one of its descendents is out of sync with the local file system and FORCE is not specified.
• The workspace and the local file system are out of sync at the destination resource or one of its descendents.
• Resource changes are disallowed during certain types of resource change event notification. See IResourceChangeEvent for more details.
• The destination file system location is occupied. When moving a project in the file system, the destination directory must either not exist or be empty.

OperationCanceledException - if the operation is canceled. Cancellation can occur even if no progress monitor is provided.

Since:

2.0

See Also:

• IResourceDelta.getFlags()
• FORCE
• KEEP_HISTORY
• SHALLOW
• REPLACE
• IResourceRuleFactory.moveRule(IResource, IResource)

refreshLocal

void refreshLocal(int depth,
 IProgressMonitor monitor)
           throws CoreException

Refreshes the resource hierarchy from this resource and its children (to the specified depth) relative to the local file system. Creations, deletions, and changes detected in the local file system will be reflected in the workspace's resource tree. This resource need not exist or be local.

This method may discover changes to resources; any such changes will be reported in a subsequent resource change event.

If a new file or directory is discovered in the local file system at or below the location of this resource, any parent folders required to contain the new resource in the workspace will also be created automatically as required.

This method is long-running; progress and cancellation are provided by the given progress monitor.

Parameters:

depth - valid values are DEPTH_ZERO, DEPTH_ONE, or DEPTH_INFINITE

monitor - a progress monitor, or null if progress reporting is not desired

Throws:

CoreException - if this method fails. Reasons include:

• Resource changes are disallowed during certain types of resource change event notification. See IResourceChangeEvent for more details.

OperationCanceledException - if the operation is canceled. Cancellation can occur even if no progress monitor is provided.

See Also:

• DEPTH_ZERO
• DEPTH_ONE
• DEPTH_INFINITE
• IResourceRuleFactory.refreshRule(IResource)

revertModificationStamp

void revertModificationStamp(long value)
                      throws CoreException

Reverts this resource's modification stamp. This is intended to be used by a client that is rolling back or undoing a previous change to this resource.

It is the caller's responsibility to ensure that the value of the reverted modification stamp matches this resource's modification stamp prior to the change that has been rolled back. More generally, the caller must ensure that the specification of modification stamps outlined in getModificationStamp is honored; the modification stamp of two distinct resource states should be different if and only if one or more of the attributes listed in the specification as affecting the modification stamp have changed.

Reverting the modification stamp will not be reported in a subsequent resource change event.

Note that a resource's modification stamp is unrelated to the local time stamp for this resource on disk, if any. A resource's local time stamp is modified using the setLocalTimeStamp method.

Parameters:

value - A non-negative modification stamp value

Throws:

CoreException - if this method fails. Reasons include:

• This resource does not exist.
• This resource is not local.
• This resource is not accessible.
• Resource changes are disallowed during certain types of resource change event notification. See IResourceChangeEvent for more details.

Since:

3.1

See Also:

• getModificationStamp()

setDerived

@Deprecated
void setDerived(boolean isDerived)
         throws CoreException

Deprecated.

Replaced by setDerived(boolean, IProgressMonitor) which is a workspace operation and reports changes in resource deltas.

Sets whether this resource subtree is marked as derived.

A derived resource is a regular file or folder that is created in the course of translating, compiling, copying, or otherwise processing other files. Derived resources are not original data, and can be recreated from other resources. It is commonplace to exclude derived resources from version and configuration management because they would otherwise clutter the team repository with version of these ever-changing files as each user regenerates them.

If a resource or any of its ancestors is marked as derived, a team provider should assume that the resource is not under version and configuration management by default. That is, the resource should only be stored in a team repository if the user explicitly indicates that this resource is worth saving.

Newly-created resources are not marked as derived; rather, the mark must be set explicitly using setDerived(true). Derived marks are maintained in the in-memory resource tree, and are discarded when the resources are deleted. Derived marks are saved to disk when a project is closed, or when the workspace is saved.

Projects and the workspace root are never considered derived; attempts to mark them as derived are ignored.

This operation does not result in a resource change event, and does not trigger autobuilds.

Parameters:

isDerived - true if this resource is to be marked as derived, and false otherwise

Throws:

CoreException - if this method fails. Reasons include:

• This resource does not exist.
• Resource changes are disallowed during certain types of resource change event notification. See IResourceChangeEvent for more details.

Since:

2.0

See Also:

• isDerived()

setDerived

void setDerived(boolean isDerived,
 IProgressMonitor monitor)
         throws CoreException

Sets whether this resource subtree is marked as derived.

A derived resource is a regular file or folder that is created in the course of translating, compiling, copying, or otherwise processing other files. Derived resources are not original data, and can be recreated from other resources. It is commonplace to exclude derived resources from version and configuration management because they would otherwise clutter the team repository with version of these ever-changing files as each user regenerates them.

If a resource or any of its ancestors is marked as derived, a team provider should assume that the resource is not under version and configuration management by default. That is, the resource should only be stored in a team repository if the user explicitly indicates that this resource is worth saving.

Newly-created resources are not marked as derived; rather, the mark must be set explicitly using setDerived(true, IProgressMonitor). Derived marks are maintained in the in-memory resource tree, and are discarded when the resources are deleted. Derived marks are saved to disk when a project is closed, or when the workspace is saved.

Projects and the workspace root are never considered derived; attempts to mark them as derived are ignored.

These changes will be reported in a subsequent resource change event, including an indication that this file's derived flag has changed.

This method is long-running; progress and cancellation are provided by the given progress monitor.

Parameters:

isDerived - true if this resource is to be marked as derived, and false otherwise

monitor - a progress monitor, or null if progress reporting is not desired

Throws:

OperationCanceledException - if the operation is canceled. Cancellation can occur even if no progress monitor is provided.

CoreException - if this method fails. Reasons include:

• This resource does not exist.
• Resource changes are disallowed during certain types of resource change event notification. See IResourceChangeEvent for more details.

Since:

3.6

See Also:

• isDerived()
• IResourceRuleFactory.derivedRule(IResource)

setHidden

void setHidden(boolean isHidden)
        throws CoreException

Sets whether this resource and its members are hidden in the resource tree.

Hidden resources are invisible to most clients. Newly-created resources are not hidden resources by default.

The workspace root is never considered hidden resource; attempts to mark it as hidden are ignored.

This operation does not result in a resource change event, and does not trigger autobuilds.

This operation is not related to ResourceAttributes.setHidden(boolean). Whether a resource is hidden in the resource tree is unrelated to whether the underlying file is hidden in the file system.

Parameters:

isHidden - true if this resource is to be marked as hidden, and false otherwise

Throws:

CoreException - if this method fails. Reasons include:

• This resource does not exist.
• Resource changes are disallowed during certain types of resource change event notification. See IResourceChangeEvent for more details.

Since:

3.4

See Also:

• isHidden()

setLocal

@Deprecated
void setLocal(boolean flag,
 int depth,
 IProgressMonitor monitor)
       throws CoreException

Deprecated.

This API is no longer in use. Note that this API is unrelated to whether the resource is in the local file system versus some other file system.

Set whether or not this resource and its members (to the specified depth) are expected to have their contents (and properties) available locally. The workspace root and projects are always local and attempting to set either to non-local (i.e., passing false) has no effect on the resource.

When a resource is not local, its content and properties are unavailable for both reading and writing.

This method is long-running; progress and cancellation are provided by the given progress monitor.

Parameters:

flag - whether this resource should be considered local

depth - valid values are DEPTH_ZERO, DEPTH_ONE, or DEPTH_INFINITE

monitor - a progress monitor, or null if progress reporting is not desired

Throws:

CoreException - if this method fails. Reasons include:

• Resource changes are disallowed during certain types of resource change event notification. See IResourceChangeEvent for more details.

OperationCanceledException - if the operation is canceled. Cancellation can occur even if no progress monitor is provided.

See Also:

• isLocal(int)

setLocalTimeStamp

long setLocalTimeStamp(long value)
                throws CoreException

Sets the local time stamp on disk for this resource. The time must be represented as the number of milliseconds since the epoch (00:00:00 GMT, January 1, 1970). Returns the actual time stamp that was recorded. Due to varying file system timing granularities, the provided value may be rounded or otherwise truncated, so the actual recorded time stamp that is returned may not be the same as the supplied value.

Parameters:

value - a time stamp in milliseconds.

Returns:

a local file system time stamp.

Throws:

CoreException - if this method fails. Reasons include:

• This resource does not exist.
• This resource is not local.
• This resource is not accessible.
• Resource changes are disallowed during certain types of resource change event notification. See IResourceChangeEvent for more details.

Since:

3.0

setPersistentProperty

void setPersistentProperty(QualifiedName key,
 String value)
                    throws CoreException

Sets the value of the persistent property of this resource identified by the given key. If the supplied value is null, the persistent property is removed from this resource. The change is made immediately on disk.

Persistent properties are intended to be used by plug-ins to store resource-specific information that should be persisted across platform sessions. The value of a persistent property is a string that must be short - 2KB or less in length. Unlike session properties, persistent properties are stored on disk and maintained across workspace shutdown and restart.

The qualifier part of the property name must be the unique identifier of the declaring plug-in (e.g. "com.example.plugin").

Parameters:

key - the qualified name of the property

value - the string value of the property, or null if the property is to be removed

Throws:

CoreException - if this method fails. Reasons include:

• This resource does not exist.
• This resource is not local.
• This resource is a project that is not open.
• Resource changes are disallowed during certain types of resource change event notification. See IResourceChangeEvent for more details.

See Also:

• getPersistentProperty(QualifiedName)
• isLocal(int)

setReadOnly

@Deprecated
void setReadOnly(boolean readOnly)

Deprecated.

use IResource#setResourceAttributes(ResourceAttributes)

Sets or unsets this resource as read-only in the file system.

Parameters:

readOnly - true to set it to read-only, false to unset

setResourceAttributes

void setResourceAttributes(ResourceAttributes attributes)
                    throws CoreException

Sets this resource with the given extended attributes. This sets the attributes in the file system. Only attributes that are supported by the underlying file system will be set.

Sample usage:

IResource resource;
...
if (attributes != null) { attributes.setExecutable(true);
resource.setResourceAttributes(attributes);
}

Note that a resource cannot be converted into a symbolic link by setting resource attributes with ResourceAttributes.isSymbolicLink() set to true.

Parameters:

attributes - the attributes to set

Throws:

CoreException - if this method fails. Reasons include:

• This resource does not exist.
• This resource is not local.
• This resource is a project that is not open.

Since:

3.1

See Also:

• getResourceAttributes()

setSessionProperty

void setSessionProperty(QualifiedName key,
 Object value)
                 throws CoreException

Sets the value of the session property of this resource identified by the given key. If the supplied value is null, the session property is removed from this resource.

Sessions properties are intended to be used as a caching mechanism by ISV plug-ins. They allow key-object associations to be stored with existing resources in the workspace. These key-value associations are maintained in memory (at all times), and the information is lost when a resource is deleted from the workspace, when the parent project is closed, or when the workspace is closed.

The qualifier part of the property name must be the unique identifier of the declaring plug-in (e.g. "com.example.plugin").

Parameters:

key - the qualified name of the property

value - the value of the session property, or null if the property is to be removed

Throws:

CoreException - if this method fails. Reasons include:

• This resource does not exist.
• This resource is not local.
• This resource is a project that is not open.
• Resource changes are disallowed during certain types of resource change event notification. See IResourceChangeEvent for more details.

See Also:

• getSessionProperty(QualifiedName)

setTeamPrivateMember

void setTeamPrivateMember(boolean isTeamPrivate)
                   throws CoreException

Sets whether this resource subtree is a team private member of its parent container.

A team private member resource is a special file or folder created by a team provider to hold team-provider-specific information. Resources marked as team private members are invisible to most clients.

Newly-created resources are not team private members by default; rather, the team provider must mark a resource explicitly using setTeamPrivateMember(true). Team private member marks are maintained in the in-memory resource tree, and are discarded when the resources are deleted. Team private member marks are saved to disk when a project is closed, or when the workspace is saved.

Projects and the workspace root are never considered team private members; attempts to mark them as team private are ignored.

This operation does not result in a resource change event, and does not trigger autobuilds.

Parameters:

isTeamPrivate - true if this resource is to be marked as team private, and false otherwise

Throws:

CoreException - if this method fails. Reasons include:

• This resource does not exist.
• Resource changes are disallowed during certain types of resource change event notification. See IResourceChangeEvent for more details.

Since:

2.0

See Also:

• isTeamPrivateMember()

touch

void touch(IProgressMonitor monitor)
    throws CoreException

Marks this resource as having changed even though its content may not have changed. This method can be used to trigger the rebuilding of resources/structures derived from this resource. Touching the workspace root has no effect.

This method changes resources; these changes will be reported in a subsequent resource change event. If the resource is a project, the change event will indicate a description change.

This method is long-running; progress and cancellation are provided by the given progress monitor.

Parameters:

monitor - a progress monitor, or null if progress reporting is not desired

Throws:

CoreException - if this method fails. Reasons include:

• This resource does not exist.
• This resource is not local.
• Resource changes are disallowed during certain types of resource change event notification. See IResourceChangeEvent for more details.

OperationCanceledException - if the operation is canceled. Cancellation can occur even if no progress monitor is provided.

See Also:

• IResourceRuleFactory.modifyRule(IResource)
• IResourceDelta.CONTENT
• IResourceDelta.DESCRIPTION