Showing the changes to java/pkg/java/beans/IndexedPropertyChangeEvent.java (1 of 18352 files). Show all
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| 1 | /* | ||
| 2 | * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | package java.beans; | ||
| 26 | |||
| 27 | /** | ||
| 28 | * An "IndexedPropertyChange" event gets delivered whenever a component that | ||
| 29 | * conforms to the JavaBeans™ specification (a "bean") changes a bound | ||
| 30 | * indexed property. This class is an extension of <code>PropertyChangeEvent</code> | ||
| 31 | * but contains the index of the property that has changed. | ||
| 32 | * <P> | ||
| 33 | * Null values may be provided for the old and the new values if their | ||
| 34 | * true values are not known. | ||
| 35 | * <P> | ||
| 36 | * An event source may send a null object as the name to indicate that an | ||
| 37 | * arbitrary set of if its properties have changed. In this case the | ||
| 38 | * old and new values should also be null. | ||
| 39 | * | ||
| 40 | * @since 1.5 | ||
| 41 | * @author Mark Davidson | ||
| 42 | */ | ||
| 43 | public class IndexedPropertyChangeEvent extends PropertyChangeEvent { | ||
| 44 | private static final long serialVersionUID = -320227448495806870L; | ||
| 45 | |||
| 46 | private int index; | ||
| 47 | |||
| 48 | /** | ||
| 49 | * Constructs a new <code>IndexedPropertyChangeEvent</code> object. | ||
| 50 | * | ||
| 51 | * @param source The bean that fired the event. | ||
| 52 | * @param propertyName The programmatic name of the property that | ||
| 53 | * was changed. | ||
| 54 | * @param oldValue The old value of the property. | ||
| 55 | * @param newValue The new value of the property. | ||
| 56 | * @param index index of the property element that was changed. | ||
| 57 | */ | ||
| 58 | public IndexedPropertyChangeEvent(Object source, String propertyName, | ||
| 59 | Object oldValue, Object newValue, | ||
| 60 | int index) { | ||
| 61 | super (source, propertyName, oldValue, newValue); | ||
| 62 | this.index = index; | ||
| 63 | } | ||
| 64 | |||
| 65 | /** | ||
| 66 | * Gets the index of the property that was changed. | ||
| 67 | * | ||
| 68 | * @return The index specifying the property element that was | ||
| 69 | * changed. | ||
| 70 | */ | ||
| 71 | public int getIndex() { | ||
| 72 | return index; | ||
| 73 | } | ||
| 74 | |||
| 75 | void appendTo(StringBuilder sb) { | ||
| 76 | sb.append("; index=").append(getIndex()); | ||
| 77 | } | ||
| 78 | } | ||