Package org.aspectj.org.eclipse.jdt.core.compiler

Class ReconcileContext

java.lang.Object

org.aspectj.org.eclipse.jdt.core.compiler.ReconcileContext

public class ReconcileContext
extends Object

The context of a reconcile event that is notified to interested compilation participants while a reconcile operation is running.

A reconcile participant can get the AST for the reconcile-operation using getAST4(). If the participant modifies in any way the AST (either by modifying the source of the working copy, or modifying another entity that would result in different bindings for the AST), it is expected to reset the AST in the context using resetAST().

A reconcile participant can also create and return problems using putProblems(String, CategorizedProblem[]). These problems are then reported to the problem requestor of the reconcile operation.

Since:

3.2

See Also:

• CompilationParticipant.reconcile(ReconcileContext)

Constructor Summary

Constructors

Constructor	Description
ReconcileContext(ReconcileWorkingCopyOperation operation, CompilationUnit workingCopy)	Creates a reconcile context for the given reconcile operation.

Method Summary

Modifier and Type	Method	Description
CompilationUnit	getAST(int level)	Returns a resolved AST with the given AST level.
CompilationUnit	getAST3()	Deprecated. JLS3 has been deprecated.
CompilationUnit	getAST4()	Deprecated. JLS4 has been deprecated.
CompilationUnit	getAST8()	Deprecated. JLS8 has been deprecated.
int	getASTLevel()	Returns the AST level requested by the reconcile operation.
IJavaElementDelta	getDelta()	Returns the delta describing the change to the working copy being reconciled.
CategorizedProblem[]	getProblems(String markerType)	Returns the problems to be reported to the problem requestor of the reconcile operation for the given marker type.
int	getReconcileFlags()	Returns the reconcile flag of this context.
ICompilationUnit	getWorkingCopy()	Returns the working copy this context refers to.
boolean	isResolvingBindings()	Returns whether the reconcile operation is resolving bindings.
void	putProblems(String markerType, CategorizedProblem[] problems)	Sets the problems to be reported to the problem requestor of the reconcile operation for the given marker type.
void	resetAST()	Resets the AST carried by this context.

Methods inherited from class java.lang.Object

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

Constructor Details

ReconcileContext

public ReconcileContext(ReconcileWorkingCopyOperation operation,
 CompilationUnit workingCopy)

Creates a reconcile context for the given reconcile operation.

Parameters:

operation - the reconcile operation

Method Details

getAST3

public CompilationUnit getAST3()
                        throws JavaModelException

Deprecated.

JLS3 has been deprecated. This method has been replaced by getAST4() which returns an AST with JLS4 level.

Returns a resolved AST with JLS3 level. It is created from the current state of the working copy. Creates one if none exists yet. Returns null if the current state of the working copy doesn't allow the AST to be created (e.g. if the working copy's content cannot be parsed).

If the AST level requested during reconciling is not AST.JLS3 or if binding resolutions was not requested, then a different AST is created. Note that this AST does not become the current AST and it is only valid for the requestor.

Returns:

the AST created from the current state of the working copy, or null if none could be created

Throws:

JavaModelException - if the contents of the working copy cannot be accessed. Reasons include:

• The working copy does not exist (ELEMENT_DOES_NOT_EXIST)

getAST4

public CompilationUnit getAST4()
                        throws JavaModelException

Deprecated.

JLS4 has been deprecated. This method has been replaced by getAST8() which returns an AST with JLS8 level.

Returns a resolved AST with JLS4 level. It is created from the current state of the working copy. Creates one if none exists yet. Returns null if the current state of the working copy doesn't allow the AST to be created (e.g. if the working copy's content cannot be parsed).

If the AST level requested during reconciling is not AST.JLS4 or if binding resolutions was not requested, then a different AST is created. Note that this AST does not become the current AST and it is only valid for the requestor.

Returns:

the AST created from the current state of the working copy, or null if none could be created

Throws:

JavaModelException - if the contents of the working copy cannot be accessed. Reasons include:

• The working copy does not exist (ELEMENT_DOES_NOT_EXIST)

Since:

3.7.1

getAST8

public CompilationUnit getAST8()
                        throws JavaModelException

Deprecated.

JLS8 has been deprecated. This method has been replaced by getAST(int) which returns an AST with the given level.

Returns a resolved AST with JLS8 level. It is created from the current state of the working copy. Creates one if none exists yet. Returns null if the current state of the working copy doesn't allow the AST to be created (e.g. if the working copy's content cannot be parsed).

If the AST level requested during reconciling is not AST.JLS8 or if binding resolutions was not requested, then a different AST is created. Note that this AST does not become the current AST and it is only valid for the requestor.

Returns:

the AST created from the current state of the working copy, or null if none could be created

Throws:

JavaModelException - if the contents of the working copy cannot be accessed. Reasons include:

• The working copy does not exist (ELEMENT_DOES_NOT_EXIST)

Since:

3.10

getAST

public CompilationUnit getAST(int level)
                       throws JavaModelException

Returns a resolved AST with the given AST level. It is created from the current state of the working copy. Creates one if none exists yet. Returns null if the current state of the working copy doesn't allow the AST to be created (e.g. if the working copy's content cannot be parsed).

If the AST level requested during reconciling is not the latest available AST level or if binding resolutions was not requested, then a different AST is created. Note that this AST does not become the current AST and it is only valid for the requestor.

Parameters:

level - the API level; one of the .JLS* level constants declared on AST

Returns:

the AST created from the current state of the working copy, or null if none could be created

Throws:

JavaModelException - if the contents of the working copy cannot be accessed. Reasons include:

• The working copy does not exist (ELEMENT_DOES_NOT_EXIST)

Since:

3.14

getASTLevel

public int getASTLevel()

Returns the AST level requested by the reconcile operation. It is either ICompilationUnit.NO_AST, or one of the JLS constants defined on AST.

Returns:

the AST level requested by the reconcile operation

isResolvingBindings

public boolean isResolvingBindings()

Returns whether the reconcile operation is resolving bindings.

Returns:

whether the reconcile operation is resolving bindings

getReconcileFlags

public int getReconcileFlags()

Returns the reconcile flag of this context. This flag is a bitwise value of the constant defined in ICompilationUnit.

Returns:

the reconcile flag of this context

Since:

3.6

See Also:

• ICompilationUnit.ENABLE_BINDINGS_RECOVERY
• ICompilationUnit.ENABLE_STATEMENTS_RECOVERY
• ICompilationUnit.IGNORE_METHOD_BODIES

getDelta

public IJavaElementDelta getDelta()

Returns the delta describing the change to the working copy being reconciled. Returns null if there is no change. Note that the delta's AST is not yet positioned at this stage. Use getAST4() to get the current AST.

Returns:

the delta describing the change, or null if none

getProblems

public CategorizedProblem[] getProblems(String markerType)

Returns the problems to be reported to the problem requestor of the reconcile operation for the given marker type. Returns null if no problems need to be reported for this marker type.

Parameters:

markerType - the given marker type

Returns:

problems to be reported to the problem requestor

getWorkingCopy

public ICompilationUnit getWorkingCopy()

Returns the working copy this context refers to.

Returns:

the working copy this context refers to

resetAST

public void resetAST()

Resets the AST carried by this context. A compilation participant that modifies the environment that would result in different bindings for the AST is expected to reset the AST on this context, so that other participants don't get a stale AST.

Note that resetting the AST will not restart the reconcile process. Only further participants will see the new AST. Thus participants running before the one that resets the AST will have a stale view of the AST and its problems. Use the compilation participant extension point to order the participants.

putProblems

public void putProblems(String markerType,
 CategorizedProblem[] problems)

Sets the problems to be reported to the problem requestor of the reconcile operation for the given marker type. null indicates that no problems need to be reported.

Using this functionality, a participant that resolves problems for a given marker type can hide those problems since they don't exist any longer.

Parameters:

markerType - the marker type of the given problems

problems - the problems to be reported to the problem requestor of the reconcile operation, or null if none