hg/bck2brwsr: rt/emul/compact/src/main/java/java/beans/IndexedPropertyChangeEvent.java@d382dacfd73f

     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;

    27 /**

    28  * An "IndexedPropertyChange" event gets delivered whenever a component that

    29  * conforms to the JavaBeans&trade; 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;

    46     private int index;

    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     }

    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     }

    75     void appendTo(StringBuilder sb) {

    76         sb.append("; index=").append(getIndex());

    77     }

    78 }

author	Jaroslav Tulach <jaroslav.tulach@apidesign.org>
	Tue, 26 Feb 2013 16:54:16 +0100
changeset 772	d382dacfd73f
parent 601	emul/compact/src/main/java/java/beans/IndexedPropertyChangeEvent.java@5198affdb915
permissions	-rw-r--r--