/* * 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.jpdl.exe; import java.io.Serializable; import java.util.Collection; import java.util.HashSet; import java.util.Iterator; import org.jbpm.context.exe.ContextInstance; import org.jbpm.graph.def.Node; import org.jbpm.graph.exe.ExecutionContext; import org.jbpm.graph.exe.Token; public class MilestoneInstance implements Serializable { private static final long serialVersionUID = 1L; protected long id; protected String name; protected boolean reached; protected Token token; protected Collection listeners; public MilestoneInstance() { } public MilestoneInstance(String name) { this.name = name; } public static MilestoneInstance getMilestoneInstance(String milestoneName, Token token) { ContextInstance ci = token.getProcessInstance().getContextInstance(); MilestoneInstance mi = (MilestoneInstance) ci.getVariable(milestoneName, token); if (mi == null) { mi = new MilestoneInstance(milestoneName); mi.setToken(token); ci.setVariable(milestoneName, mi); } return mi; } public void addListener(Token token) { if (listeners == null) listeners = new HashSet(); listeners.add(token); } public void notifyListeners() { if (listeners != null) { // for every token that was waiting for this milestone for (Iterator iter = listeners.iterator(); iter.hasNext();) { Token token = (Token) iter.next(); // leave the milestone node Node node = token.getNode(); ExecutionContext executionContext = new ExecutionContext(token); node.leave(executionContext); } } } public long getId() { return id; } /** * This method has no effect. * * @deprecated database identified is not meant to be mutable */ public void setId(long id) { } public Collection getListeners() { return listeners; } public void setListeners(Collection listeners) { this.listeners = listeners; } public String getName() { return name; } public void setName(String name) { this.name = name; } public boolean isReached() { return reached; } public void setReached(boolean reached) { this.reached = reached; } public Token getToken() { return token; } public void setToken(Token token) { this.token = token; } }