1 /* 2 * Copyright (c) 2011, 2013, 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 26 package javafx.beans.property; 27 28 /** 29 * This class provides a convenient class to define read-only properties. It 30 * creates two properties that are synchronized. One property is read-only 31 * and can be passed to external users. The other property is read- and 32 * writable and should be used internally only. 33 * 34 * @since JavaFX 2.0 35 */ 36 public class ReadOnlyLongWrapper extends SimpleLongProperty { 37 38 private ReadOnlyPropertyImpl readOnlyProperty; 39 40 /** 41 * The constructor of {@code ReadOnlyLongWrapper} 42 */ 43 public ReadOnlyLongWrapper() { 44 } 45 46 /** 47 * The constructor of {@code ReadOnlyLongWrapper} 48 * 49 * @param initialValue 50 * the initial value of the wrapped value 51 */ 52 public ReadOnlyLongWrapper(long initialValue) { 53 super(initialValue); 54 } 55 56 /** 57 * The constructor of {@code ReadOnlyLongWrapper} 58 * 59 * @param bean 60 * the bean of this {@code ReadOnlyLongProperty} 61 * @param name 62 * the name of this {@code ReadOnlyLongProperty} 63 */ 64 public ReadOnlyLongWrapper(Object bean, String name) { 65 super(bean, name); 66 } 67 68 /** 69 * The constructor of {@code ReadOnlyLongWrapper} 70 * 71 * @param bean 72 * the bean of this {@code ReadOnlyLongProperty} 73 * @param name 74 * the name of this {@code ReadOnlyLongProperty} 75 * @param initialValue 76 * the initial value of the wrapped value 77 */ 78 public ReadOnlyLongWrapper(Object bean, String name, long initialValue) { 79 super(bean, name, initialValue); 80 } 81 82 /** 83 * Returns the readonly property, that is synchronized with this 84 * {@code ReadOnlyLongWrapper}. 85 * 86 * @return the readonly property 87 */ 88 public ReadOnlyLongProperty getReadOnlyProperty() { 89 if (readOnlyProperty == null) { 90 readOnlyProperty = new ReadOnlyPropertyImpl(); 91 } 92 return readOnlyProperty; 93 } 94 95 /** 96 * {@inheritDoc} 97 */ 98 @Override 99 protected void fireValueChangedEvent() { 100 super.fireValueChangedEvent(); 101 if (readOnlyProperty != null) { 102 readOnlyProperty.fireValueChangedEvent(); 103 } 104 } 105 106 private class ReadOnlyPropertyImpl extends ReadOnlyLongPropertyBase { 107 108 @Override 109 public long get() { 110 return ReadOnlyLongWrapper.this.get(); 111 } 112 113 @Override 114 public Object getBean() { 115 return ReadOnlyLongWrapper.this.getBean(); 116 } 117 118 @Override 119 public String getName() { 120 return ReadOnlyLongWrapper.this.getName(); 121 } 122 }; 123 }