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Java Source Code / Java Documentation » IDE Eclipse » ui workbench » org.eclipse.ui.internal.contexts

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

org.eclipse.ui.internal.services .EvaluationResultCache

org.eclipse.ui.internal.contexts .ContextActivation

ContextActivation

final class ContextActivation extends EvaluationResultCache implements IContextActivation(Code)

A token representing the activation of a context. This token can later be used to cancel that activation. Without this token, then the context will only become inactive if the component in which the context was activated is destroyed.

This caches the context id, so that they can later be identified.

Note: this class has a natural ordering that is inconsistent with equals.

since:
3.1

Constructor Summary
public	ContextActivation(String contextId, Expression expression, IContextService contextService) Constructs a new instance of `ContextActivation`. Parameters: contextId - The identifier for the context which should be activated.

Method Summary
final public void	clearActive()
final public String	getContextId()
final public IContextService	getContextService()
final public boolean	isActive(IEvaluationContext context)
final public String	toString()

Constructor Detail

ContextActivation
public ContextActivation(String contextId, Expression expression, IContextService contextService)(Code)
	Constructs a new instance of `ContextActivation`. Parameters: contextId - The identifier for the context which should be activated. Thisvalue must not be `null`. Parameters: expression - The expression that must evaluate to `true`before this handler is active. This value may be`null` if it is always active. Parameters: contextService - The context service from which the handler activation wasrequested; must not be `null`. See Also: ISources

Method Detail

clearActive
final public void clearActive()(Code)

getContextId
final public String getContextId()(Code)

getContextService
final public IContextService getContextService()(Code)

isActive
final public boolean isActive(IEvaluationContext context)(Code)

toString
final public String toString()(Code)

Methods inherited from org.eclipse.ui.internal.services.EvaluationResultCache

final public void clearResult()(Code)(Java Doc)
final public boolean evaluate(IEvaluationContext context)(Code)(Java Doc)
final public Expression getExpression()(Code)(Java Doc)
final public int getSourcePriority()(Code)(Java Doc)
final public void setResult(boolean result)(Code)(Java Doc)

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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