Java tutorial
/* * Copyright (c) 2010, 2015, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package javafx.collections; import java.util.Map; import javafx.beans.Observable; /** * A map that allows observers to track changes when they occur. * * @see MapChangeListener * @see MapChangeListener.Change * @since JavaFX 2.0 */ public interface ObservableMap<K, V> extends Map<K, V>, Observable { /** * Add a listener to this observable map. * @param listener the listener for listening to the list changes */ public void addListener(MapChangeListener<? super K, ? super V> listener); /** * Tries to removed a listener from this observable map. If the listener is not * attached to this map, nothing happens. * @param listener a listener to remove */ public void removeListener(MapChangeListener<? super K, ? super V> listener); }