org.jdal.cmd

Interface Command

All Known Subinterfaces:

Task

All Known Implementing Classes:

DefaultCommand, DefaultTask

public interface Command

Commmand interface for Command Design Pattern (GoF)

Author:

Jose Luis Martin - (chelu.es@gmail.com)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	execute(Object data) The Command Action
String	getName()
void	onFault(Object data) Notify Command object that some fault ocurred on a command list
void	undo() Undo the command, false if fail

Method Detail

execute

boolean execute(Object data)

The Command Action

Parameters:

data - generic command data

Returns:

true if command sucess

Throws:

CommandException

onFault

void onFault(Object data)

Notify Command object that some fault ocurred on a command list

Parameters:

data - generic command data

undo

void undo()

Undo the command, false if fail

getName

String getName()

Returns:

the command name