Package javax.swing.undo

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 Concurrency in 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

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	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	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.

© 1993, 2020, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
https://docs.oracle.com/en/java/javase/11/docs/api/java.desktop/javax/swing/undo/package-summary.html