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

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

org.eclipse.ui.internal.services .EvaluationResultCache

org.eclipse.ui.internal.handlers .HandlerActivation

HandlerActivation

final class HandlerActivation extends EvaluationResultCache implements IHandlerActivation(Code)

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

This caches the command id and the handler, so that they can later be identified.

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

since:
3.1

Constructor Summary
	HandlerActivation(String commandId, IHandler handler, Expression expression, int depth, IHandlerService handlerService) Constructs a new instance of `HandlerActivation`. Parameters: commandId - The identifier for the command which the activated handlerhandles.

Method Summary
final public void	clearActive()
final public int	compareTo(Object object) Implement Comparable.compareTo(Object) .
final public String	getCommandId()
final public int	getDepth()
final public IHandler	getHandler()
final public IHandlerService	getHandlerService()
final public boolean	isActive(IEvaluationContext context)
final public String	toString()

Constructor Detail

HandlerActivation
HandlerActivation(String commandId, IHandler handler, Expression expression, int depth, IHandlerService handlerService)(Code)
	Constructs a new instance of `HandlerActivation`. Parameters: commandId - The identifier for the command which the activated handlerhandles. This value must not be `null`. Parameters: handler - `The handler that has been activated. This value may 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: depth - The depth at which this activation was created within theservices hierarchy. This is used as the final tie-breaker ifall other conditions are equal. This should be a positiveinteger. Parameters: handlerService - The handler service from which the handler activation wasrequested; must not be `null`. See Also: ISources

Method Detail

clearActive
final public void clearActive()(Code)

compareTo
final public int compareTo(Object object)(Code)
	Implement Comparable.compareTo(Object) . Note: this class has a natural ordering that is inconsistent with equals.

getCommandId
final public String getCommandId()(Code)

getDepth
final public int getDepth()(Code)

getHandler
final public IHandler getHandler()(Code)

getHandlerService
final public IHandlerService getHandlerService()(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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