com.levigo.jadice.swing.commands
Class UndoCommand

java.lang.Object
  com.levigo.util.swing.action.injection.InjectedCommand
      com.levigo.util.swing.action.AbstractContextCommand
          com.levigo.jadice.swing.commands.AbstractPageViewCommand
              com.levigo.jadice.swing.commands.AbstractDocumentCommand
                  com.levigo.jadice.swing.commands.UndoCommand

All Implemented Interfaces:

Command, SelfDescribingCommand

public class UndoCommand
extends AbstractDocumentCommand
implements SelfDescribingCommand

This command performs undos for the current document. For the command to be enabled, the current document's UndoManager must have un-doable edits in its chain.

Nested Class Summary

Nested classes/interfaces inherited from class com.levigo.jadice.swing.commands.AbstractDocumentCommand

AbstractDocumentCommand.Scope

Field Summary

Fields inherited from class com.levigo.jadice.swing.commands.AbstractDocumentCommand

document

Constructor Summary

UndoCommand()

Method Summary

protected boolean	canExecute() Subclasses may override this method to perform argument validation beyond the validation that happens automatically during the injection phase.
protected void	execute() This method is called in order to execute the command.
String	getName() Provide the equivalent of the Action.NAME property for this command.
String	getShortDescription() Provide the equivalent of the Action.SHORT_DESCRIPTION property for this command.

Methods inherited from class com.levigo.jadice.swing.commands.AbstractDocumentCommand

getRenderControls, getScope, setScope

Methods inherited from class com.levigo.jadice.swing.commands.AbstractPageViewCommand

getPageView, setPageView

Methods inherited from class com.levigo.util.swing.action.AbstractContextCommand

getContext, propagateContextChange, setContext

Methods inherited from class com.levigo.util.swing.action.injection.InjectedCommand

canExecute, execute, getKey, isAvailable, isSelected, isSelected, setKey

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.levigo.util.swing.action.Command

canExecute, execute, isAvailable, isSelected

Constructor Detail

UndoCommand

public UndoCommand()

Method Detail

canExecute

protected boolean canExecute()

Description copied from class: InjectedCommand

Subclasses may override this method to perform argument validation beyond the validation that happens automatically during the injection phase. This method is called after the context has been found to match the requirements specified via the Argument annotations and the arguments have been injected.

Overrides:

canExecute in class AbstractDocumentCommand

Returns:

true if the command can/may be executed in the current context, false otherwise.

execute

protected void execute()

Description copied from class: InjectedCommand

This method is called in order to execute the command. It is only called, after the arguments have been validated and injected and only if InjectedCommand.canExecute() has returned true.

Specified by:

execute in class InjectedCommand

getName

public String getName()

Description copied from interface: SelfDescribingCommand

Provide the equivalent of the Action.NAME property for this command. Implementors are allowed to return null from this method in order to signal a fallback to a non-dynamic name.

Specified by:

getName in interface SelfDescribingCommand

Returns:

the name

getShortDescription

public String getShortDescription()

Description copied from interface: SelfDescribingCommand

Provide the equivalent of the Action.SHORT_DESCRIPTION property for this command. Implementors are allowed to return null from this method in order to signal a fallback to a non-dynamic description.

Specified by:

getShortDescription in interface SelfDescribingCommand

Returns:

the description