<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<!--NewPage-->
<html>
<head>
<!-- Generated by javadoc on Wed Jul 28 01:21:15 GMT 1999 -->
<title>
  Interface java.beans.VetoableChangeListener
</title>
</head>
<body>
<a name="_top_"></a>
<pre>
<a href="packages.html">All Packages</a>  <a href="tree.html">Class Hierarchy</a>  <a href="Package-java.beans.html">This Package</a>  <a href="java.beans.PropertyEditor.html#_top_">Previous</a>  <a href="java.beans.Visibility.html#_top_">Next</a>  <a href="AllNames.html">Index</a></pre>
<hr>
<h1>
  Interface java.beans.VetoableChangeListener
</h1>
<dl>
  <dt> public interface <b>VetoableChangeListener</b>
  <dt> extends <a href="java.util.EventListener.html#_top_">EventListener</a>
</dl>
A VetoableChange event gets fired whenever a bean changes a "constrained"
 property.  You can register a VetoableChangeListener with a source bean
 so as to be notified of any constrained property updates.
<p>
<hr>
<a name="index"></a>
<h2>
  <img src="images/method-index.gif" width=207 height=38 alt="Method Index">
</h2>
<dl>
  <dt> <img src="images/red-ball-small.gif" width=6 height=6 alt=" o ">
	<a href="#vetoableChange(java.beans.PropertyChangeEvent)"><b>vetoableChange</b></a>(PropertyChangeEvent)
  <dd>  This method gets called when a constrained property is changed.
</dl>
<a name="methods"></a>
<h2>
  <img src="images/methods.gif" width=151 height=38 alt="Methods">
</h2>
<a name="vetoableChange(java.beans.PropertyChangeEvent)"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="vetoableChange"><b>vetoableChange</b></a>
<pre>
 public abstract void vetoableChange(<a href="java.beans.PropertyChangeEvent.html#_top_">PropertyChangeEvent</a> evt) throws <a href="java.beans.PropertyVetoException.html#_top_">PropertyVetoException</a>
</pre>
<dl>
  <dd> This method gets called when a constrained property is changed.
<p>
  <dd><dl>
    <dt> <b>Parameters:</b>
    <dd> evt - a <code>PropertyChangeEvent</code> object describing the
   	      event source and the property that has changed.
    <dt> <b>Throws:</b> <a href="java.beans.PropertyVetoException.html#_top_">PropertyVetoException</a>
    <dd> if the recipient wishes the property
              change to be rolled back.
  </dl></dd>
</dl>
<hr>
<pre>
<a href="packages.html">All Packages</a>  <a href="tree.html">Class Hierarchy</a>  <a href="Package-java.beans.html">This Package</a>  <a href="java.beans.PropertyEditor.html#_top_">Previous</a>  <a href="java.beans.Visibility.html#_top_">Next</a>  <a href="AllNames.html">Index</a></pre>
</body>
</html>
