/*
* Copyright 2010 BetaSteward_at_googlemail.com. 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 BetaSteward_at_googlemail.com ``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 BetaSteward_at_googlemail.com 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 BetaSteward_at_googlemail.com.
*/
package mage.client.util;
import java.io.Serializable;
import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;
/**
*
* @author BetaSteward_at_googlemail.com
* @param <E>
*/
public abstract class EventDispatcher<E extends Event> implements Serializable {
private final List<Listener<E>> listeners = new CopyOnWriteArrayList<>();
public void addListener(Listener<E> listener) {
if (!listeners.contains(listener)) {
listeners.add(listener);
}
}
public void removeListener(Listener<E> listener) {
listeners.remove(listener);
}
public void fireEvent(E event) {
for (Listener<E> listener : listeners) {
listener.event(event);
}
}
public void clearListeners() {
listeners.clear();
}
}