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 | +} | |