Module java.desktop

Package javax.swing.undo

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 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.