Package org.eclipse.emf.compare.rcp.internal.extension.impl

Class DescriptorRegistryEventListener<T>

java.lang.Object

org.eclipse.emf.compare.rcp.extension.AbstractRegistryEventListener

org.eclipse.emf.compare.rcp.internal.extension.impl.DescriptorRegistryEventListener<T>

Type Parameters:

T - one descriptor type

All Implemented Interfaces:

EventListener, org.eclipse.core.runtime.IRegistryEventListener

public class DescriptorRegistryEventListener<T>
extends AbstractRegistryEventListener

Base class for Descriptor Registry.

Nested Class Summary

Nested classes/interfaces inherited from class org.eclipse.emf.compare.rcp.extension.AbstractRegistryEventListener

AbstractRegistryEventListener.Action

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DESCRITPION_DESCRIPTOR_ATTR	Description attribute of extension point.
static final String	ID_DESCRIPTOR_ATTR	Id attribute of the extension point.
static final String	IMPL_CLASS_DESCRIPTOR_ATTR	Engine implementation class attribute of extension point.
static final String	LABEL_DESCRIPTOR_ATTR	Label attribute of extension point.
static final String	RANK_DESCRIPTOR_ATTR	Rank attribute of extension point.
static final String	TAG_DESCRIPTOR	Descriptor tag of extension point.

Constructor Summary

Constructors

Constructor	Description
DescriptorRegistryEventListener(String namespace, String extensionPointID, org.eclipse.core.runtime.ILog log, IItemRegistry<T> registry)	Constructor.

Method Summary

Modifier and Type	Method	Description
protected boolean	addedValid(org.eclipse.core.runtime.IConfigurationElement element)	Process the given element as the addition of a valid element extension.
protected boolean	removedValid(org.eclipse.core.runtime.IConfigurationElement element)	Process the given element as the removal of a valid element extension.
protected boolean	validateExtensionElement(org.eclipse.core.runtime.IConfigurationElement element)	Validates if the given element is an element for the given extension and is well constructed.

Methods inherited from class org.eclipse.emf.compare.rcp.extension.AbstractRegistryEventListener

added, added, log, log, log, logMissingAttribute, readElement, readRegistry, removed, removed

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

LABEL_DESCRIPTOR_ATTR

public static final String LABEL_DESCRIPTOR_ATTR

Label attribute of extension point.

See Also:

• Constant Field Values

DESCRITPION_DESCRIPTOR_ATTR

public static final String DESCRITPION_DESCRIPTOR_ATTR

Description attribute of extension point.

See Also:

• Constant Field Values

IMPL_CLASS_DESCRIPTOR_ATTR

public static final String IMPL_CLASS_DESCRIPTOR_ATTR

Engine implementation class attribute of extension point.

See Also:

• Constant Field Values

RANK_DESCRIPTOR_ATTR

public static final String RANK_DESCRIPTOR_ATTR

Rank attribute of extension point.

See Also:

• Constant Field Values

ID_DESCRIPTOR_ATTR

public static final String ID_DESCRIPTOR_ATTR

Id attribute of the extension point.

See Also:

• Constant Field Values

TAG_DESCRIPTOR

public static final String TAG_DESCRIPTOR

Descriptor tag of extension point.

See Also:

• Constant Field Values

Constructor Details

DescriptorRegistryEventListener

public DescriptorRegistryEventListener(String namespace,
 String extensionPointID,
 org.eclipse.core.runtime.ILog log,
 IItemRegistry<T> registry)

Constructor.

Parameters:

namespace - namespace of the extension point

extensionPointID - id of the extension point

log - Logger

registry - IItemRegistry where IItemDescriptor will be stored

Method Details

validateExtensionElement

protected boolean validateExtensionElement(org.eclipse.core.runtime.IConfigurationElement element)

Validates if the given element is an element for the given extension and is well constructed. Returns true if the element should be further parsed for addition or removal.

Specified by:

validateExtensionElement in class AbstractRegistryEventListener

Parameters:

element - the element to validate.

Returns:

true if the element should be further parsed for addition or removal, else otherwise.

See Also:

• AbstractRegistryEventListener.validateExtensionElement(org.eclipse.core.runtime.IConfigurationElement)

addedValid

protected boolean addedValid(org.eclipse.core.runtime.IConfigurationElement element)

Process the given element as the addition of a valid element extension.

Specified by:

addedValid in class AbstractRegistryEventListener

Parameters:

element - the element to be added.

Returns:

true if the given element has been added and if its children should be processed, false otherwise.

See Also:

• AbstractRegistryEventListener.addedValid(org.eclipse.core.runtime.IConfigurationElement)

removedValid

protected boolean removedValid(org.eclipse.core.runtime.IConfigurationElement element)

Process the given element as the removal of a valid element extension.

Specified by:

removedValid in class AbstractRegistryEventListener

Parameters:

element - the element to be removed.

Returns:

true if the given element has been removed and if its children should be processed, false otherwise.

See Also:

• AbstractRegistryEventListener.removedValid(org.eclipse.core.runtime.IConfigurationElement)