/* * Copyright 2008 the original author or authors. * * 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 org.wamblee.system.graph; /** * DOCUMENT ME! * * @author $author$ * @version $Revision$ * * @param DOCUMENT ME! * @param DOCUMENT ME! */ public class EdgeSelector { /** * DOCUMENT ME! */ private Class fromType; /** * DOCUMENT ME! */ private Class toType; /** * Creates a new EdgeSelector object. * * @param aFrom DOCUMENT ME! * @param aTo DOCUMENT ME! */ public EdgeSelector(Class aFrom, Class aTo) { fromType = aFrom; toType = aTo; } /** * DOCUMENT ME! * * @param aSelector DOCUMENT ME! * @param aEdge DOCUMENT ME! */ public void execute(Selector aSelector, Edge aEdge) { if (fromType.isInstance(aEdge.getFrom()) && toType.isInstance(aEdge.getTo())) { aSelector.execute((FromType) aEdge.getFrom(), (ToType) aEdge.getTo()); } } public static interface Selector { void execute(FromType aFrom, ToType aTo); } }