1/* 2 * Copyright (c) 2008, 2015, 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. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25package com.sun.hotspot.igv.data; 26 27/** 28 * 29 * @author Thomas Wuerthinger 30 */ 31public abstract class ControllableChangedListener<T> implements ChangedListener<T>{ 32 33 private boolean enabled; 34 35 36 public ControllableChangedListener() { 37 enabled = true; 38 } 39 40 public boolean isEnabled() { 41 return enabled; 42 } 43 44 public void setEnabled(boolean b) { 45 enabled = b; 46 } 47 48 @Override 49 public void changed(T source) { 50 if(enabled) { 51 filteredChanged(source); 52 } 53 } 54 55 public abstract void filteredChanged(T source); 56} 57