JRummikub/src/jrummikub/util/Event2.java

package jrummikub.util;

import java.util.HashSet;

public class Event2<T1, T2> implements IEvent2<T1, T2> {
private HashSet<IListener2<T1, T2>> listeners = new HashSet<IListener2<T1, T2>>();
  
  @Override
  public void add(IListener2<T1, T2> listener) {
    listeners.add(listener);
  }

  @Override
  public void remove(IListener2<T1, T2> listener) {
    listeners.remove(listener);
  }

  public void fire(T1 value1, T2 value2) {
    for (IListener2<T1, T2> listener : listeners) {
      listener.fire(value1, value2);
    }
  }
}