org.eclipse.gmf.runtime.diagram.ui.actions
Class AbstractDiagramGlobalActionProxy

java.lang.Object
  org.eclipse.gmf.runtime.common.ui.services.action.global.AbstractGlobalActionHandler
      org.eclipse.gmf.runtime.diagram.ui.actions.AbstractDiagramGlobalActionProxy

All Implemented Interfaces:

IGlobalActionHandler

public abstract class AbstractDiagramGlobalActionProxy

extends AbstractGlobalActionHandler

Proxy that instantiates the diagram action when necessary and destroys it after use.

Constructor Summary

AbstractDiagramGlobalActionProxy()

Method Summary

boolean	canHandle(IGlobalActionContext cntxt) Return true if the handler can handle the context
ICommand	getCommand(IGlobalActionContext cntxt) Return the ICommand for the context
protected abstract DiagramAction	instantiateAction(IGlobalActionContext context) Instantiate the DiagramAction.

Methods inherited from class org.eclipse.gmf.runtime.common.ui.services.action.global.AbstractGlobalActionHandler

getLabel

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractDiagramGlobalActionProxy

public AbstractDiagramGlobalActionProxy()

Method Detail

instantiateAction

protected abstract DiagramAction instantiateAction(IGlobalActionContext context)

Instantiate the DiagramAction. You should call dispose() on the action when done with it. This is particularly important when the action is a selection listener. Subclasses should return an instance of the DiagramAction

Parameters:

context - the IGlobalActionContext holding nevessary context information for the action

Returns:

DiagramAction the newly instantiated action

getCommand

public ICommand getCommand(IGlobalActionContext cntxt)

Description copied from interface: IGlobalActionHandler

Return the ICommand for the context

Parameters:

cntxt - The context

Returns:

ICommand

canHandle

public boolean canHandle(IGlobalActionContext cntxt)

Description copied from interface: IGlobalActionHandler

Return true if the handler can handle the context

Parameters:

cntxt - The context

Returns:

boolean