001/* 002 * Copyright 2006 - 2013 003 * Stefan Balev <stefan.balev@graphstream-project.org> 004 * Julien Baudry <julien.baudry@graphstream-project.org> 005 * Antoine Dutot <antoine.dutot@graphstream-project.org> 006 * Yoann Pigné <yoann.pigne@graphstream-project.org> 007 * Guilhelm Savin <guilhelm.savin@graphstream-project.org> 008 * 009 * This file is part of GraphStream <http://graphstream-project.org>. 010 * 011 * GraphStream is a library whose purpose is to handle static or dynamic 012 * graph, create them from scratch, file or any source and display them. 013 * 014 * This program is free software distributed under the terms of two licenses, the 015 * CeCILL-C license that fits European law, and the GNU Lesser General Public 016 * License. You can use, modify and/ or redistribute the software under the terms 017 * of the CeCILL-C license as circulated by CEA, CNRS and INRIA at the following 018 * URL <http://www.cecill.info> or under the terms of the GNU LGPL as published by 019 * the Free Software Foundation, either version 3 of the License, or (at your 020 * option) any later version. 021 * 022 * This program is distributed in the hope that it will be useful, but WITHOUT ANY 023 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A 024 * PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. 025 * 026 * You should have received a copy of the GNU Lesser General Public License 027 * along with this program. If not, see <http://www.gnu.org/licenses/>. 028 * 029 * The fact that you are presently reading this means that you have had 030 * knowledge of the CeCILL-C and LGPL licenses and that you accept their terms. 031 */ 032package org.graphstream.stream; 033 034/** 035 * Sink of graph events. 036 * 037 * <p> 038 * An output is something that can receive graph events. The output will send or 039 * transform the graph events in another form: a file, a network stream, a 040 * visualization, an algorithm, a metric, etc. 041 * </p> 042 * 043 * <p> 044 * The output can filter the stream of attribute events using 045 * {@link AttributePredicate}s. 046 * </p> 047 * 048 * 049 * <p> 050 * This listener is in fact the grouping of two specialized listeners. The first 051 * one listens only at structural changes in the graph (node and edge addition 052 * and removal). It is the {@link org.graphstream.stream.ElementSink}. The 053 * second one listens only at attributes values changes on elements of the graph 054 * (attribute addition, removal and change of values). It is the 055 * {@link org.graphstream.stream.AttributeSink}. 056 * </p> 057 * 058 * <p> 059 * It is possible to listen only at elements or attributes changes with these 060 * two interfaces. Registering a graph listener will allow to listen at the both 061 * elements and attributes at the same time. 062 * </p> 063 * 064 * @see Source 065 * @see Pipe 066 * @see AttributeSink 067 * @see ElementSink 068 */ 069public interface Sink extends AttributeSink, ElementSink { 070}