1 /** 2 * Redistribution and use in source and binary forms, with or without 3 * modification, are permitted provided that the following conditions are 4 * met : 5 * 6 * . Redistributions of source code must retain the above copyright 7 * notice, this list of conditions and the following disclaimer. 8 * 9 * . Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * . The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 19 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 25 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 package cpptools; 30 31 import java.util.ArrayList; 32 import java.util.List; 33 34 /** 35 * Provides a composite for file observers. 36 * 37 * @author Mathieu Champlon 38 */ 39 public final class FileObserverComposite implements FileObserver 40 { 41 private final List<FileObserver> observers = new ArrayList<FileObserver>(); 42 43 /** 44 * Add a file observer to the composite. 45 * 46 * @param observer the observer to add 47 */ 48 public void register( final FileObserver observer ) 49 { 50 observers.add( observer ); 51 } 52 53 /** 54 * {@inheritDoc} 55 */ 56 public void changed( final String filename ) 57 { 58 for( FileObserver observer : observers ) 59 observer.changed( filename ); 60 } 61 }