Java Foundation Classes in a Nutshell

UndoableEditEvent Ja va 1 .2

javax.swing .event serializable event

An event of this type is generated by a javax.swing .text.Document when an undoable edit

has occurred. The inherited getSource() method retur ns the Document object on which the

edit occurred, and getEdit() retur ns a description of the edit itself.

public class UndoableEditEvent extends java.util.EventObject {

// Public Constructors

public UndoableEditEvent(Object source, javax.swing .undo.UndoableEdit edit);

// Public Instance Methods

public javax.swing.undo.UndoableEdit getEdit();

}

Hierar chy: Object→ java.util.EventObject(Serializable)→ UndoableEditEvent

Passed To: UndoableEditListener.undoableEditHappened(),

javax.swing .text.AbstractDocument.fireUndoableEditUpdate(),

javax.swing .text.html.HTMLDocument.fireUndoableEditUpdate(),

javax.swing .undo.UndoManager.undoableEditHappened()

UndoableEditListener Ja va 1.2

javax.swing .event event listener

This interface defines the method that an object must implement in order to receive

notifications when an undoable edit occurs in a javax.swing .text.Document.

public abstract interface UndoableEditListener extends java.util.EventListener {

// Public Instance Methods

public abstract void undoableEditHappened(UndoableEditEvent e);

}

Hierar chy: (UndoableEditListener(java.util.EventListener))

Implementations: javax.swing .undo.UndoManager

Passed To: javax.swing .text.AbstractDocument.{addUndoableEditListener(), ...