1 /* 2 * Copyright (c) 2010, 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.binding; 27 28 import javafx.beans.InvalidationListener; 29 import javafx.beans.property.ObjectProperty; 30 import javafx.beans.property.SimpleObjectProperty; 31 import javafx.beans.property.SimpleStringProperty; 32 import javafx.beans.property.StringProperty; 33 34 public class Variable { 35 public int numChangedListenersForNext = 0; 36 public int numChangedListenersForName = 0; 37 38 public Variable(String name) { 39 this.name.set(name); 40 } 41 42 private final ObjectProperty<Object> next = new SimpleObjectProperty<Object>() { 43 @Override 44 public void addListener(InvalidationListener listener) { 45 super.addListener(listener); 46 numChangedListenersForNext++; 47 } 48 @Override 49 public void removeListener(InvalidationListener listener) { 50 super.removeListener(listener); 51 numChangedListenersForNext = Math.max(0, numChangedListenersForNext-1); 52 } 53 }; 54 public Object getNext() {return next.get();} 55 public void setNext(Object value) {next.set(value);} 56 public ObjectProperty<Object> nextProperty() {return next;} 57 58 59 60 private final StringProperty name = new SimpleStringProperty() { 61 @Override 62 public void addListener(InvalidationListener listener) { 63 super.addListener(listener); 64 numChangedListenersForName++; 65 } 66 @Override 67 public void removeListener(InvalidationListener listener) { 68 super.removeListener(listener); 69 numChangedListenersForName = Math.max(0, numChangedListenersForName-1); 70 } 71 }; 72 public final String getName() {return name.get();} 73 public void setName(String value) {name.set(value);} 74 public StringProperty nameProperty() {return name;} 75 76 @Override public String toString() {return name.get();} 77 }