activiti 挂起及唤醒流程 | Jalen's Blog = Follow your heart = A happy life

说明：通过操作流程实例 ID 实现

业务实现：

	/**
	* 根据一个流程实例的 id 挂起流程实例
	* @param processInstanceId 流程实例 id
	*/
	public void suspendProcessInstance( String processInstanceId ){
	runtimeService.suspendProcessInstanceById(processInstanceId);
	}

	/**
	* 根据一个流程实例的 id 激活流程实例
	* @param processInstanceId 流程实例 id
	*/
	public void activateProcessInstance( String processInstanceId ){
	runtimeService.activateProcessInstanceById(processInstanceId);
	}

源码及注释：

	/**
	* Suspends the process instance with the given id.
	*
	* If a process instance is in state suspended, activiti will not execute jobs
	* (timers, messages) associated with this instance.
	*
	* If you have a process instance hierarchy, suspending one process instance
	* form the hierarchy will not suspend other process instances form that
	* hierarchy.
	*
	* @throws ActivitiObjectNotFoundException
	* if no such processInstance can be found.
	* @throws ActivitiException
	* the process instance is already in state suspended.
	*/
	void suspendProcessInstanceById(String processInstanceId);

	/**
	* Activates the process instance with the given id.
	*
	* If you have a process instance hierarchy, suspending one process instance
	* form the hierarchy will not suspend other process instances form that
	* hierarchy.
	*
	* @throws ActivitiObjectNotFoundException
	* if no such processInstance can be found.
	* @throws ActivitiException
	* if the process instance is already in state active.
	*/
	void activateProcessInstanceById(String processInstanceId);

说明：通过 processDefinitionKey 启动流程并返回一个实例实例对象

业务实现：

ProcessInstance procIns = runtimeService.startProcessInstanceByKey(procDefKey, businessKey, vars);

源码及注释：

	/**
	* Starts a new process instance in the latest version of the process
	* definition with the given key.
	*
	* A business key can be provided to associate the process instance with a
	* certain identifier that has a clear business meaning. For example in an
	* order process, the business key could be an order id. This business key can
	* then be used to easily look up that process instance , see
	* {@link ProcessInstanceQuery#processInstanceBusinessKey(String)}. Providing
	* such a business key is definitely a best practice.
	*
	* Note that a business key MUST be unique for the given process definition.
	* Process instance from different process definition are allowed to have the
	* same business key.
	*
	* The combination of processdefinitionKey-businessKey must be unique.
	*
	* @param processDefinitionKey
	* key of process definition, cannot be null.
	* @param variables
	* the variables to pass, can be null.
	* @param businessKey
	* a key that uniquely identifies the process instance in the context
	* or the given process definition.
	* @throws ActivitiObjectNotFoundException
	* when no process definition is deployed with the given key.
	*/
	ProcessInstance startProcessInstanceByKey(String processDefinitionKey, String businessKey, Map<String, Object> variables);