it.amattioli.applicate.commands.executors
Class UndoAvailableCommand

Show UML class diagram

java.lang.Object
  it.amattioli.applicate.commands.AbstractCommand
      it.amattioli.applicate.commands.executors.UndoAvailableCommand

All Implemented Interfaces:

Command, ExecutorAwareCommand, ValuesLister, it.amattioli.dominate.util.PropertyChangeEmitter

public class UndoAvailableCommand
extends AbstractCommand
implements ExecutorAwareCommand

Check if there is something to undo. Send this command to an UndoableExecutor to check if the executor has at least one command that can be undone. After executing the command the client can check the result with checkResult().

Author:

andrea

Constructor Summary

UndoAvailableCommand()

Method Summary

boolean	checkResult()
void	doCommand() Check if the executor has at least one command that can be undone.
void	setCommandExecutor(CommandExecutor executor)

Methods inherited from class it.amattioli.applicate.commands.AbstractCommand

addCommandListener, addCommandListener, addPropertyChangeListener, cancelCommand, firePropertyChange, getPropertyValues, removePropertyChangeListener

Methods inherited from class java.lang.Object

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

Methods inherited from interface it.amattioli.applicate.commands.Command

addCommandListener, addCommandListener, cancelCommand

Methods inherited from interface it.amattioli.dominate.util.PropertyChangeEmitter

addPropertyChangeListener, removePropertyChangeListener

Constructor Detail

UndoAvailableCommand

public UndoAvailableCommand()

Method Detail

setCommandExecutor

public void setCommandExecutor(CommandExecutor executor)

Specified by:

setCommandExecutor in interface ExecutorAwareCommand

doCommand

public void doCommand()
               throws ApplicationException

Check if the executor has at least one command that can be undone.

Specified by:

doCommand in interface Command

Overrides:

doCommand in class AbstractCommand

Throws:

IllegalStateException - if the executor is not an UndoableExecutor

ApplicationException

checkResult

public boolean checkResult()