JavaTM 2 Platform
Std. Ed. v1.4.2

Package javax.swing.undo

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


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:


JavaTM 2 Platform
Std. Ed. v1.4.2

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

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