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author | Tom Tromey <tromey@gcc.gnu.org> | 2000-05-19 17:55:34 +0000 |
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committer | Tom Tromey <tromey@gcc.gnu.org> | 2000-05-19 17:55:34 +0000 |
commit | 6c80c45e3010bfe992b41dd8800d2c4b65e0d5ef (patch) | |
tree | 88cf0d32aea197ea8e8198e1206b04c820308615 /libjava/java/beans/PropertyChangeEvent.java | |
parent | 021c89ed68c151c45021fccf1bb5338ee817314c (diff) | |
download | gcc-6c80c45e3010bfe992b41dd8800d2c4b65e0d5ef.zip gcc-6c80c45e3010bfe992b41dd8800d2c4b65e0d5ef.tar.gz gcc-6c80c45e3010bfe992b41dd8800d2c4b65e0d5ef.tar.bz2 |
Jumbo patch:
* Imported beans and serialization
* Updated IA-64 port
* Miscellaneous bug fixes
From-SVN: r34028
Diffstat (limited to 'libjava/java/beans/PropertyChangeEvent.java')
-rw-r--r-- | libjava/java/beans/PropertyChangeEvent.java | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/libjava/java/beans/PropertyChangeEvent.java b/libjava/java/beans/PropertyChangeEvent.java new file mode 100644 index 0000000..f07577c --- /dev/null +++ b/libjava/java/beans/PropertyChangeEvent.java @@ -0,0 +1,111 @@ +/* java.beans.PropertyChangeEvent + Copyright (C) 1998 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 oldVal; + Object newVal; + 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 oldVal the old value of the property. + ** @param newVal the new value of the property. + **/ + public PropertyChangeEvent(Object source, String propertyName, Object oldVal, Object newVal) { + super(source); + this.propertyName = propertyName; + this.oldVal = oldVal; + this.newVal = 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 oldVal; + } + + /** Get the property's new value. + ** @return the property's new value. + **/ + public Object getNewValue() { + return newVal; + } + + /** 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; + } +} |