JBPM常用方法

最近开始了解JBPM，边学，边总结一下常用的方法

获得JBPM上下文

//默认使用名为"jbpm.cfg.xml"的配置文件
JbpmConfiguration configuration = JbpmConfiguration.getInstance();
//JbpmConfiguration configuration = JbpmConfiguration.getInstance(cfgName);
//使用默认工厂实例对应的名称为 JbpmContext.DEFAULT_JBPM_CONTEXT_NAME
JbpmContext context = configuration.createJbpmContext() ;
//JbpmContext context = configuration.createJbpmContext(contextName) ;

//保存流程实例
context.deployProcessDefinition(ProcessDefinition processDefinition);

持久相关的操作

TaskMgmtSession mgmtSession = context.getTaskMgmtSession();
/**
*DbPersistenceServiceFactory dbPersistenceServiceFactory = (DbPersistenceServiceFactory) jbpmConfiguration.getServiceFactory(Services.SERVICENAME_PERSISTENCE);
  DbPersistenceService service = (DbPersistenceService)dbPersistenceServiceFactory.openService();

   DbPersistenceService service = new DbPersistenceService( dbPersistenceServiceFactory);
service.getTaskMgmtSession();
*/

加载流程创建实例
  

InputStream is = MyClass.class.getResourceAsStream("processdefinition_web.xml");
ProcessDefinition processDefinition = ProecessDefinition.parseXmlInputStream(is);
ProcessInstance processInstance = new ProcessInstance(processDefinition); 

  
  

获得流程定义中的节点

  //通过当前的根令牌所在的节点
   Node node = processInstance.getRootToken().getNode();
  //通过名称检索节点
  Node node = processDefinition.getNode(nodeName);

执行指定名称的transition

  //节点open定义了两个Transition
  /*<state name="Open">
   *  <transition name="close" to="Closed" />
   *   <transition name="lock" to="Open Locked" />
   *</state>
  */
  
  Node node = processDefinition.getNode("Open");
  processInstance.getRootToken().setNode(node);
  processInstance.signal("lock");
  
  //assertSame(processInstance.getRootToken().getNode(),processDefinition.getNode("Open Locked"));

//processInstance.signal();
//assertSame(processInstance.getRootToken().getNode(),processDefinition.getNode("Closed"));