de.tsl2.nano.incubation.repeat

Interface ICommandManager

All Known Implementing Classes:

CommandManager

public interface ICommandManager

all you need for undo/redo and macros. this generic solution allows to write a small framework to be enhanced by an application developer through ICommand.runWith(IChange...).

Each command holds its own own context to do changes (see IChange) on it. These changes can be undo()ne and then redo()ne.

To use macros, the implementation should implement the IMacroManager.

Version:

$Revision$

Author:

Tom, Thomas Schneider

Method Summary

Modifier and Type	Method and Description
boolean	canRedo() canRedo
boolean	canUndo() canUndo
boolean	doIt(ICommand<?>... cmd) doIt
ICommand<?>	redo() redo a command that was un-done.
ICommand<?>	undo() undo a command that was done by #doIt(ICommand).

Method Detail

doIt

boolean doIt(ICommand<?>... cmd)

doIt

Parameters:

cmd - command to execute

Returns:

true, if command was executed and stored for undo.

undo

ICommand<?> undo()

undo a command that was done by #doIt(ICommand).

Returns:

command that was un-done.

redo

ICommand<?> redo()

redo a command that was un-done.

Returns:

command that was re-done

canUndo

boolean canUndo()

canUndo

Returns:

true, if at least one command was done.

canRedo

boolean canRedo()

canRedo

Returns:

true, if at least one command was un-done.