juzu.impl.metamodel.EventQueue Maven / Gradle / Ivy
/*
* Copyright 2013 eXo Platform SAS
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package juzu.impl.metamodel;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;
/** @author Julien Viet */
public class EventQueue implements Serializable {
/** . */
private final LinkedList events;
public EventQueue(EventQueue that) {
this.events = new LinkedList(that.events);
}
public EventQueue() {
this.events = new LinkedList();
}
public List clear() {
ArrayList copy = new ArrayList(events);
events.clear();
return copy;
}
public MetaModelEvent popEvent() {
return events.isEmpty() ? null : events.removeFirst();
}
public boolean hasEvents() {
return !events.isEmpty();
}
public void queue(MetaModelEvent event) {
events.add(event);
}
}