/* * JBoss, Home of Professional Open Source * Copyright 2005, JBoss Inc., and individual contributors as indicated * by the @authors tag. See the copyright.txt in the distribution for a * full listing of individual contributors. * * This is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this software; if not, write to the Free * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA, or see the FSF site: http://www.fsf.org. */ package org.jbpm.graph.node; import java.util.Map; import org.dom4j.Element; import org.jbpm.graph.def.Event; import org.jbpm.graph.def.Node; import org.jbpm.graph.def.Transition; import org.jbpm.graph.exe.ExecutionContext; import org.jbpm.jpdl.xml.JpdlXmlReader; public class StartState extends Node { private static final long serialVersionUID = 1L; public StartState() { } public StartState(String name) { super(name); } public String getName() { return name; } public NodeType getNodeType() { return NodeType.StartState; } // event types ////////////////////////////////////////////////////////////// private static final String[] EVENT_TYPES = { Event.EVENTTYPE_NODE_LEAVE, Event.EVENTTYPE_AFTER_SIGNAL }; /** * @deprecated arrays are mutable and thus vulnerable to external * manipulation; call {@link #getSupportedEventTypes()} instead */ public static final String[] supportedEventTypes = (String[]) EVENT_TYPES.clone(); public String[] getSupportedEventTypes() { return (String[]) EVENT_TYPES.clone(); } // xml ////////////////////////////////////////////////////////////////////// public void read(Element startStateElement, JpdlXmlReader jpdlReader) { // if the start-state has a task specified, Element startTaskElement = startStateElement.element("task"); if (startTaskElement != null) { // delegate the parsing of the start-state task to the jpdlReader jpdlReader.readStartStateTask(startTaskElement, this); } } public void write(Element nodeElement) { } public void execute(ExecutionContext executionContext) { } public Transition addArrivingTransition(Transition t) { throw new UnsupportedOperationException("cannot add arriving transition to start state"); } /** * @deprecated start states do not have arriving transitions * @throws UnsupportedOperationException to prevent invocation */ public void setArrivingTransitions(Map arrivingTransitions) { throw new UnsupportedOperationException("cannot set arriving transitions of start state"); } }