/**
* Copyright 2011 JogAmp Community. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation are those of the
* authors and should not be interpreted as representing official policies, either expressed
* or implied, of JogAmp Community.
*/
package jogamp.opengl;
import java.util.ArrayList;
/**
* Simple locked listener implementation stub to be used for listener handler,
* synchronized on it's instance.
*
* <p>Utilizing simple locking via synchronized.</p>
*
* @param <E> The listener type
*/
public class ListenerSyncedImplStub<E> {
private ArrayList<E> listeners;
public ListenerSyncedImplStub() {
reset();
}
public synchronized final void reset() {
listeners = new ArrayList<E>();
}
public synchronized final void destroy() {
listeners.clear();
listeners = null;
}
public synchronized final int size() {
return listeners.size();
}
public synchronized final void addListener(final E listener) {
addListener(-1, listener);
}
public synchronized final void addListener(int index, final E listener) {
if(0>index) {
index = listeners.size();
}
listeners.add(index, listener);
}
public synchronized final void removeListener(final E listener) {
listeners.remove(listener);
}
public final ArrayList<E> getListeners() {
return listeners;
}
}