001/*
002 * GWTEventService
003 * Copyright (c) 2011 and beyond, strawbill UG (haftungsbeschr?nkt)
004 *
005 * This is free software; you can redistribute it and/or modify it
006 * under the terms of the GNU Lesser General Public License as
007 * published by the Free Software Foundation; either version 3 of
008 * the License, or (at your option) any later version.
009 * Other licensing for GWTEventService may also be possible on request.
010 * Please view the license.txt of the project for more information.
011 *
012 * This software is distributed in the hope that it will be useful,
013 * but WITHOUT ANY WARRANTY; without even the implied warranty of
014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
015 * Lesser General Public License for more details.
016 *
017 * You should have received a copy of the GNU Lesser General Public
018 * License along with this software; if not, write to the Free
019 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
020 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
021 */
022package de.novanic.eventservice.client.event.filter;
023
024import de.novanic.eventservice.client.event.Event;
025
026import java.io.Serializable;
027
028/**
029 * An EventFilter can be used to filter events. When an event is filtered, the user/client shouldn't be informed about
030 * the event. EventFilters are useful when the filter function for domains/contexts is to common.
031 *
032 * @author sstrohschein
033 * <br>Date: 05.06.2008
034 * <br>Time: 19:09:11
035 */
036public interface EventFilter extends Serializable
037{
038    /**
039     * If the match method returns true for an event, the event should be ignored, because the EventFilter recognizes
040     * the event to filter it.
041     * @param anEvent event to check
042     * @return true when the event should be filtered, otherwise false
043     */
044    boolean match(Event anEvent);
045}