public final class ActionHandler extends AbstractHandler
This class adapts instances of IAction to
IHandler.
| Constructor and Description |
|---|
ActionHandler(IAction action)
Creates a new instance of this class given an instance of
IAction. |
| Modifier and Type | Method and Description |
|---|---|
void |
addHandlerListener(IHandlerListener handlerListener)
Registers an instance of
IHandlerListener to listen for
changes to properties of this instance. |
void |
dispose()
Removes the property change listener from the action.
|
Object |
execute(ExecutionEvent event)
Executes with the map of parameter values by name.
|
IAction |
getAction()
Returns the action associated with this handler
|
boolean |
isEnabled()
Whether this handler is capable of executing at this time.
|
boolean |
isHandled()
Whether this handler is capable of handling delegated responsibilities at
this time.
|
void |
removeHandlerListener(IHandlerListener handlerListener)
Unregisters an instance of
IHandlerListener listening for
changes to properties of this instance. |
String |
toString() |
fireHandlerChanged, hasListenersaddListenerObject, clearListeners, getListeners, isListenerAttached, removeListenerObjectpublic ActionHandler(IAction action)
IAction.action - the action. Must not be null.public final void addHandlerListener(IHandlerListener handlerListener)
IHandlerIHandlerListener to listen for
changes to properties of this instance.addHandlerListener in interface IHandleraddHandlerListener in class AbstractHandlerhandlerListener - the instance to register. Must not be null. If
an attempt is made to register an instance which is already
registered with this instance, no operation is performed.IHandler.addHandlerListener(IHandlerListener)public final void dispose()
dispose in interface IHandlerdispose in class AbstractHandlerIHandler.dispose()public final Object execute(ExecutionEvent event) throws ExecutionException
IHandlerevent - An event containing all the information about the current
state of the application; must not be null.null.ExecutionException - if an exception occurred during execution.public final IAction getAction()
public final boolean isEnabled()
AbstractHandlerisEnabled in interface IHandlerisEnabled in class AbstractHandlertruepublic final boolean isHandled()
AbstractHandlerisHandled in interface IHandlerisHandled in class AbstractHandlertruepublic final void removeHandlerListener(IHandlerListener handlerListener)
IHandlerIHandlerListener listening for
changes to properties of this instance.removeHandlerListener in interface IHandlerremoveHandlerListener in class AbstractHandlerhandlerListener - the instance to unregister. Must not be null.
If an attempt is made to unregister an instance which is not
already registered with this instance, no operation is
performed.IHandler.removeHandlerListener(IHandlerListener)Guidelines for using Eclipse APIs. Copyright (c) IBM Corp. and others 2000, 2006. All rights reserved.