Package javax.swing.undo

Allows developers to provide support for undo/redo in applications such as text editors.

See:
Description

Interface Summary

StateEditable	StateEditable defines the interface for objects that can have their state undone/redone by a StateEdit.
UndoableEdit	An object representing an edit that has been done, and that can be undone and redone.

Class Summary

AbstractUndoableEdit	An abstract implementation of UndoableEdit, implementing simple responses to all boolean methods in that interface.
CompoundEdit	A concrete subclass of AbstractUndoableEdit, used to assemble little UndoableEdits into great big ones.
StateEdit	StateEdit is a general edit for objects that change state.
UndoableEditSupport	A support class used for managing UndoableEdit listeners.
UndoManager	Concrete subclass of CompoundEdit which can serve as a UndoableEditListener, consolidating the UndoableEditEvents from a variety of sources, and undoing or redoing them one at a time.

Exception Summary

CannotRedoException	Thrown when an UndoableEdit is told to redo() and can't.
CannotUndoException	Thrown when an UndoableEdit is told to undo() and can't.

Package javax.swing.undo Description

Allows developers to provide support for undo/redo in applications such as text editors.

Note: Most of the Swing API is not thread safe. For details, see Threads and Swing, a section in The Java Tutorial.

Related Documentation

For overviews, tutorials, examples, guides, and tool documentation, please see:

• Implementing Undo and Redo, a section in The Java Tutorial

Since:

1.2