001package org.cache2k.impl.timer;
002
003/*
004 * #%L
005 * cache2k core package
006 * %%
007 * Copyright (C) 2000 - 2015 headissue GmbH, Munich
008 * %%
009 * This program is free software: you can redistribute it and/or modify
010 * it under the terms of the GNU General Public License as
011 * published by the Free Software Foundation, either version 3 of the 
012 * License, or (at your option) any later version.
013 * 
014 * This program is distributed in the hope that it will be useful,
015 * but WITHOUT ANY WARRANTY; without even the implied warranty of
016 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
017 * GNU General Public License for more details.
018 * 
019 * You should have received a copy of the GNU General Public 
020 * License along with this program.  If not, see
021 * <http://www.gnu.org/licenses/gpl-3.0.html>.
022 * #L%
023 */
024
025/**
026 * @author Jens Wilke; created: 2014-04-27
027 */
028public final class NoPayloadTask extends BaseTimerTask {
029
030  TimerListener listener;
031
032  public NoPayloadTask(long time, TimerListener listener) {
033    super(time);
034    this.listener = listener;
035  }
036
037  @Override
038  protected boolean fire(long now) {
039    TimerListener l = listener;
040    if (l != null) {
041      l.fire(now);
042      return true;
043    }
044    return false;
045  }
046
047  @Override
048  public void cancel() {
049    listener = null;
050  }
051
052  @Override
053  public boolean isCancelled() {
054    return listener == null;
055  }
056
057}