Package javax.swing.undo

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

See: Description

Interface Summary

Interface

Description

StateEditable

StateEditable defines the interface for objects that can have their state undone/redone by a StateEdit.

UndoableEdit

An UndoableEdit represents an edit.
Class Summary

Class

Description

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

UndoManager manages a list of UndoableEdits, providing a way to undo or redo the appropriate edits.
Exception Summary

Exception

Description

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