com.azalient.api.ui.undo
Interface IUndoable

All Known Subinterfaces:

IUndoableCollapsable, IUndoStack

public interface IUndoable

An action, normally placed on a stack , that can be called to undo a previous action, see IUndoStack

Field Summary

static IUndoable	CANT_UNDO This is used where an action cannot be undone, or where no undo action has been provided
static IUndoable	NOTHING_TO_UNDO This is the null action, no action is required to undo.

Method Summary

String	describe() Describe this action - used in the list of actions
boolean	undo() Undo this action

Field Detail

CANT_UNDO

static final IUndoable CANT_UNDO

This is used where an action cannot be undone, or where no undo action has been provided

NOTHING_TO_UNDO

static final IUndoable NOTHING_TO_UNDO

This is the null action, no action is required to undo.

Method Detail

undo

boolean undo()

Undo this action

describe

String describe()

Describe this action - used in the list of actions