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/*
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* Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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jaroslav@601
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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jaroslav@601
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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jaroslav@601
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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jaroslav@601
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package java.beans;
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/**
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* An "IndexedPropertyChange" event gets delivered whenever a component that
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* conforms to the JavaBeans™ specification (a "bean") changes a bound
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* indexed property. This class is an extension of <code>PropertyChangeEvent</code>
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* but contains the index of the property that has changed.
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* <P>
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* Null values may be provided for the old and the new values if their
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* true values are not known.
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* <P>
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* An event source may send a null object as the name to indicate that an
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* arbitrary set of if its properties have changed. In this case the
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* old and new values should also be null.
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*
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* @since 1.5
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* @author Mark Davidson
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*/
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public class IndexedPropertyChangeEvent extends PropertyChangeEvent {
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private static final long serialVersionUID = -320227448495806870L;
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private int index;
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/**
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* Constructs a new <code>IndexedPropertyChangeEvent</code> object.
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*
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* @param source The bean that fired the event.
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* @param propertyName The programmatic name of the property that
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* was changed.
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* @param oldValue The old value of the property.
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* @param newValue The new value of the property.
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* @param index index of the property element that was changed.
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*/
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public IndexedPropertyChangeEvent(Object source, String propertyName,
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Object oldValue, Object newValue,
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int index) {
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super (source, propertyName, oldValue, newValue);
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this.index = index;
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}
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/**
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* Gets the index of the property that was changed.
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*
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* @return The index specifying the property element that was
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* changed.
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*/
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public int getIndex() {
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return index;
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}
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void appendTo(StringBuilder sb) {
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sb.append("; index=").append(getIndex());
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}
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}
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