001/*
002 * This file is part of the Kompics component model runtime.
003 * 
004 * Copyright (C) 2009 Swedish Institute of Computer Science (SICS)
005 * Copyright (C) 2009 Royal Institute of Technology (KTH)
006 *
007 * Kompics is free software; you can redistribute it and/or
008 * modify it under the terms of the GNU General Public License
009 * as published by the Free Software Foundation; either version 2
010 * of the License, or (at your option) any later version.
011 *
012 * This program 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
015 * GNU General Public License for more details.
016 *
017 * You should have received a copy of the GNU General Public License
018 * along with this program; if not, write to the Free Software
019 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
020 */
021package se.sics.kompics;
022
023/**
024 * This interface must be implemented by classes that act as context for MatchedHandlers.
025 * 
026 * @author Lars Kroll {@literal <[email protected]>}
027 * @param <P>
028 *            The type pattern to match against
029 * @param <V>
030 *            The type of the value to extract if the pattern is matched
031 */
032public interface PatternExtractor<P, V> extends KompicsEvent {
033    public P extractPattern();
034
035    public V extractValue();
036}