VASSAL.command
Class NullCommand

java.lang.Object
  |
  +--VASSAL.command.Command
        |
        +--VASSAL.command.NullCommand

public class NullCommand

extends Command

Constructor Summary

NullCommand()

Method Summary

protected void	executeCommand() Perform the action which this Command represents
boolean	isNull()
protected Command	myUndoCommand() If the action can be undone, return a Command that performs the inverse action.

Methods inherited from class VASSAL.command.Command

append, execute, getSubCommands, getUndoCommand, hasNullSubcommands, isLoggable, stripSubCommands, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

NullCommand

public NullCommand()

Method Detail

executeCommand

protected void executeCommand()

Description copied from class: Command

Perform the action which this Command represents

Specified by:

executeCommand in class Command

myUndoCommand

protected Command myUndoCommand()

Description copied from class: Command

If the action can be undone, return a Command that performs the inverse action. The Command returned should only undo Command.executeCommand(), not the actions of subcommands

Specified by:

myUndoCommand in class Command

isNull

public boolean isNull()

Overrides:

isNull in class Command

Returns:

true if this command does nothing