Package org.eclipse.jdt.ui.text.java.correction

Class CUCorrectionProposal

java.lang.Object

org.eclipse.jdt.core.manipulation.ChangeCorrectionProposalCore

org.eclipse.jdt.ui.text.java.correction.ChangeCorrectionProposal

org.eclipse.jdt.ui.text.java.correction.CUCorrectionProposal

All Implemented Interfaces:

ICUCorrectionProposal, ICommandAccess, IJavaCompletionProposal, ICompletionProposal, ICompletionProposalExtension5, ICompletionProposalExtension6

Direct Known Subclasses:

ASTRewriteCorrectionProposal

public class CUCorrectionProposal
extends ChangeCorrectionProposal
implements ICUCorrectionProposal

A proposal for quick fixes and quick assists that work on a single compilation unit. Either a text change is directly passed in the constructor or method addEdits(IDocument, TextEdit) is overridden to provide the text edits that are applied to the document when the proposal is evaluated.

The proposal takes care of the preview of the changes as proposal information.

Since:

3.8

Field Summary

Fields inherited from class org.eclipse.jdt.core.manipulation.ChangeCorrectionProposalCore

fChange, fName, fRelevance

Fields inherited from interface org.eclipse.jdt.ui.text.java.correction.ICommandAccess

ASSIST_SUFFIX, COMMAND_ID_PREFIX

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	CUCorrectionProposal(String name, ICompilationUnit cu, int relevance, Image image)	Constructs a correction proposal working on a compilation unit.
	CUCorrectionProposal(String name, ICompilationUnit cu, TextChange change, int relevance)	Constructs a correction proposal working on a compilation unit with a given text change.
	CUCorrectionProposal(String name, ICompilationUnit cu, TextChange change, int relevance, Image image)	Constructs a correction proposal working on a compilation unit with a given text change.

Method Summary

Modifier and Type	Method	Description
protected void	addEdits(IDocument document, TextEdit editRoot)	Called when the CompilationUnitChange is initialized.
void	apply(IDocument document)
protected Change	createChange()	Creates the change for this proposal.
protected TextChange	createTextChange()	Creates the text change for this proposal.
protected boolean	didOpenEditor()	Returns whether the changed compilation unit was not previously open in an editor.
Object	getAdditionalProposalInfo(IProgressMonitor monitor)
ICompilationUnit	getCompilationUnit()	The compilation unit on which the change works.
String	getPreviewContent()	Creates a preview of the content of the compilation unit after applying the change.
TextChange	getTextChange()	Returns the text change that is invoked when the change is applied.
String	toString()

Methods inherited from class org.eclipse.jdt.ui.text.java.correction.ChangeCorrectionProposal

getAdditionalProposalInfo, getChange, getCommandId, getContextInformation, getDisplayString, getImage, getSelection, getStyledDisplayString, performChange, setCommandId, setImage

Methods inherited from class org.eclipse.jdt.core.manipulation.ChangeCorrectionProposalCore

apply, getName, getRelevance, performChange, setDisplayName, setRelevance

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.jdt.ui.text.java.IJavaCompletionProposal

getRelevance

Constructor Detail

CUCorrectionProposal

public CUCorrectionProposal(String name,
                            ICompilationUnit cu,
                            TextChange change,
                            int relevance,
                            Image image)

Constructs a correction proposal working on a compilation unit with a given text change.

Parameters:

name - the name that is displayed in the proposal selection dialog

cu - the compilation unit to which the change can be applied

change - the change that is executed when the proposal is applied or null if implementors override addEdits(IDocument, TextEdit) to provide the text edits or createTextChange() to provide a text change

relevance - the relevance of this proposal

image - the image that is displayed for this proposal or null if no image is desired

CUCorrectionProposal

public CUCorrectionProposal(String name,
                            ICompilationUnit cu,
                            TextChange change,
                            int relevance)

Constructs a correction proposal working on a compilation unit with a given text change. Uses the default image for this proposal.

Parameters:

name - the name that is displayed in the proposal selection dialog

cu - the compilation unit to which the change can be applied

change - the change that is executed when the proposal is applied or null if implementors override addEdits(IDocument, TextEdit) to provide the text edits or createTextChange() to provide a text change.

relevance - the relevance of this proposal

CUCorrectionProposal

protected CUCorrectionProposal(String name,
                               ICompilationUnit cu,
                               int relevance,
                               Image image)

Constructs a correction proposal working on a compilation unit.

Users have to override addEdits(IDocument, TextEdit) to provide the text edits or createTextChange() to provide a text change.

Parameters:

name - the name that is displayed in the proposal selection dialog

cu - the compilation unit on that the change works

relevance - the relevance of this proposal

image - the image that is displayed for this proposal or null if no image is desired

Method Detail

addEdits

protected void addEdits(IDocument document,
                        TextEdit editRoot)
                 throws CoreException

Called when the CompilationUnitChange is initialized. Subclasses can override to add text edits to the root edit of the change. Implementors must not access the proposal, e.g. not call ChangeCorrectionProposal.getChange().

The default implementation does not add any edits

Parameters:

document - content of the underlying compilation unit. To be accessed read only.

editRoot - The root edit to add all edits to

Throws:

CoreException - can be thrown if adding the edits is failing.

getAdditionalProposalInfo

public Object getAdditionalProposalInfo(IProgressMonitor monitor)

Specified by:

getAdditionalProposalInfo in interface ICompletionProposalExtension5

Overrides:

getAdditionalProposalInfo in class ChangeCorrectionProposalCore

apply

public void apply(IDocument document)

Specified by:

apply in interface ICompletionProposal

Overrides:

apply in class ChangeCorrectionProposal

createTextChange

protected TextChange createTextChange()
                               throws CoreException

Creates the text change for this proposal. This method is only called once and only when no text change has been passed in CUCorrectionProposal(String, ICompilationUnit, TextChange, int, Image).

Returns:

the created text change

Throws:

CoreException - if the creation of the text change failed

createChange

protected final Change createChange()
                             throws CoreException

Description copied from class: ChangeCorrectionProposalCore

Creates the change for this proposal. This method is only called once and only when no change has been passed in {#ChangeCorrectionProposal(String, Change, int, Image)}. Subclasses may override.

Overrides:

createChange in class ChangeCorrectionProposalCore

Returns:

the created change

Throws:

CoreException - if the creation of the change failed

getTextChange

public final TextChange getTextChange()
                               throws CoreException

Returns the text change that is invoked when the change is applied.

Specified by:

getTextChange in interface ICUCorrectionProposal

Returns:

the text change that is invoked when the change is applied

Throws:

CoreException - if accessing the change failed

getCompilationUnit

public final ICompilationUnit getCompilationUnit()

The compilation unit on which the change works.

Returns:

the compilation unit on which the change works

getPreviewContent

public String getPreviewContent()
                         throws CoreException

Creates a preview of the content of the compilation unit after applying the change.

Returns:

the preview of the changed compilation unit

Throws:

CoreException - if the creation of the change failed

Restriction:

This method is not intended to be referenced by clients.

toString

public String toString()

Overrides:

toString in class Object

didOpenEditor

protected boolean didOpenEditor()

Returns whether the changed compilation unit was not previously open in an editor.

Returns:

true if the changed compilation unit was not previously open in an editor, false if the changed compilation unit was already open in an editor

Restriction:

This method is not intended to be referenced by clients.