org.eclipse.net4j.util.ui.actions
Class SafeActionDelegate

java.lang.Object
  org.eclipse.net4j.util.ui.actions.SafeActionDelegate

All Implemented Interfaces:

IActionDelegate

Direct Known Subclasses:

LongRunningActionDelegate

public abstract class SafeActionDelegate
extends Object
implements IActionDelegate

Author:

Eike Stepper

SafeActionDelegate

public SafeActionDelegate()

getAction

public IAction getAction()

getSelection

public ISelection getSelection()

selectionChanged

public void selectionChanged(IAction action,
                             ISelection selection)

Description copied from interface: org.eclipse.ui.IActionDelegate

Notifies this action delegate that the selection in the workbench has changed.

Implementers can use this opportunity to change the availability of the action or to modify other presentation properties.

When the selection changes, the action enablement state is updated based on the criteria specified in the plugin.xml file. Then the delegate is notified of the selection change regardless of whether the enablement criteria in the plugin.xml file is met.

Specified by:

selectionChanged in interface IActionDelegate

Parameters:

action - the action proxy that handles presentation portion of the action

selection - the current selection, or null if there is no selection.

run

public void run(IAction action)

Description copied from interface: org.eclipse.ui.IActionDelegate

Performs this action.

This method is called by the proxy action when the action has been triggered. Implement this method to do the actual work.

Note: If the action delegate also implements IActionDelegate2, then this method is not invoked but instead the runWithEvent(IAction, Event) method is called.

Specified by:

run in interface IActionDelegate

Parameters:

action - the action proxy that handles the presentation portion of the action

safeRun

protected abstract void safeRun()
                         throws Exception

Throws:

Exception

getText

protected String getText()