Spec-Zone .ru
спецификации, руководства, описания, API
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001/* 002 * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved. 003 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 004 * 005 * This code is free software; you can redistribute it and/or modify it 006 * under the terms of the GNU General Public License version 2 only, as 007 * published by the Free Software Foundation. Oracle designates this 008 * particular file as subject to the "Classpath" exception as provided 009 * by Oracle in the LICENSE file that accompanied this code. 010 * 011 * This code is distributed in the hope that it will be useful, but WITHOUT 012 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 013 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 014 * version 2 for more details (a copy is included in the LICENSE file that 015 * accompanied this code). 016 * 017 * You should have received a copy of the GNU General Public License version 018 * 2 along with this work; if not, write to the Free Software Foundation, 019 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 020 * 021 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 022 * or visit www.oracle.com if you need additional information or have any 023 * questions. 024 */ 025 026package javafx.beans; 027 028/** 029 * {@code WeakListener} is the super interface of all weak listener implementations 030 * JavaFX runtime. Usually it should not be used directly, but instead one of the 031 * sub-interfaces will be used. 032 * 033 * @see WeakInvalidationListener 034 * @see javafx.beans.value.WeakChangeListener 035 * 036 * 037 */ 038public interface WeakListener { 039 /** 040 * Returns {@code true} if the linked listener was garbage-collected. 041 * In this case, the listener can be removed from the observable. 042 * 043 * @return {@code true} if the linked listener was garbage-collected. 044 */ 045 boolean wasGarbageCollected(); 046}