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-/* java.beans.PropertyChangeEvent
- Copyright (C) 1998, 2000 Free Software Foundation, Inc.
-
-This file is part of GNU Classpath.
-
-GNU Classpath is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU Classpath is distributed in the hope that it will be useful, but
-WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU Classpath; see the file COPYING. If not, write to the
-Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-02111-1307 USA.
-
-As a special exception, if you link this library with other files to
-produce an executable, this library does not by itself cause the
-resulting executable to be covered by the GNU General Public License.
-This exception does not however invalidate any other reasons why the
-executable file might be covered by the GNU General Public License. */
-
-
-package java.beans;
-
-/**
- ** PropertyChangeEvents are fired in the PropertyChange
- ** and VetoableChange event classes. They represent the
- ** old and new values as well as the source Bean.<P>
- **
- ** If the old or new value is a primitive type, it must
- ** be wrapped in the appropriate wrapper type
- ** (java.lang.Integer for int, etc., etc.).<P>
- **
- ** If the old or new values are unknown (although why
- ** that would be I do not know), they may be null.<P>
- **
- ** Right now Sun put in a propagationId, reserved for
- ** future use. Read the comments on the constructor
- ** and on setPropagationId for more information.
- **
- ** @author John Keiser
- ** @since JDK1.1
- ** @version 1.1.0, 29 Jul 1998
- **/
-
-public class PropertyChangeEvent extends java.util.EventObject {
- String propertyName;
- Object oldValue;
- Object newValue;
- Object propagationId;
-
- /** Create a new PropertyChangeEvent. Remember that if
- ** you received a PropertyChangeEvent and are sending
- ** a new one, you should also set the propagation ID
- ** from the old PropertyChangeEvent.
- ** @param source the Bean containing the property.
- ** @param propertyName the property's name.
- ** @param oldValue the old value of the property.
- ** @param newValue the new value of the property.
- **/
- public PropertyChangeEvent(Object source, String propertyName, Object oldVal, Object newVal) {
- super(source);
- this.propertyName = propertyName;
- oldValue = oldVal;
- newValue = newVal;
- }
-
- /** Get the property name.
- ** @return the property name.
- **/
- public String getPropertyName() {
- return propertyName;
- }
-
- /** Get the property's old value.
- ** @return the property's old value.
- **/
- public Object getOldValue() {
- return oldValue;
- }
-
- /** Get the property's new value.
- ** @return the property's new value.
- **/
- public Object getNewValue() {
- return newValue;
- }
-
- /** Set the propagation ID. This is a way for the event
- ** to be passed from hand to hand and retain a little
- ** extra state. Right now it is unused, but it should
- ** be propagated anyway so that future versions of
- ** JavaBeans can use it, for God knows what.
- ** @param propagationId the propagation ID.
- **/
- public void setPropagationId(Object propagationId) {
- this.propagationId = propagationId;
- }
-
- /** Get the propagation ID.
- ** @return the propagation ID.
- **/
- public Object getPropagationId() {
- return propagationId;
- }
-}