public void run()
{
if (this.State != ProcessInstanceEnum.INITIALIZED)
{
throw new EngineException(this.Id,
this.WorkflowProcess,
this.ProcessId, "The state of the process instance is " + this.State + ",can not run it ");
}
INetInstance netInstance = (INetInstance)this.RuntimeContext.KernelManager.getNetInstance(this.ProcessId, this.Version);
if (netInstance == null)
{
throw new EngineException(this.Id,
this.WorkflowProcess,
this.ProcessId, "The net instance for the workflow process [Id=" + this.ProcessId + "] is Not found");
}
//触发事件
ProcessInstanceEvent pevent = new ProcessInstanceEvent();
pevent.EventType = ProcessInstanceEventEnum.BEFORE_PROCESS_INSTANCE_RUN;
pevent.Source = this;
this.fireProcessInstanceEvent(pevent);
this.State = ProcessInstanceEnum.RUNNING;
this.StartedTime = this.RuntimeContext.CalendarService.getSysDate();
this.RuntimeContext.PersistenceService.SaveOrUpdateProcessInstance(this);
netInstance.run(this);
}
/// <summary>在获取工作流网实例的时候，调用createNetInstance方法，创建实例</summary>
/// <param name="processId">流程定义ID</param>
/// <param name="version">流程版本号</param>
public INetInstance getNetInstance(String processId, Int32 version)
{
INetInstance netInstance = (this.netInstanceMap.ContainsKey(processId + "_V_" + version)) ? this.netInstanceMap[processId + "_V_" + version] : null;
if (netInstance == null)
{
//数据流定义在runtimeContext初始化的时候，就被加载了，将流程定义的xml读入到内存中
WorkflowDefinition def = this.RuntimeContext.DefinitionService.GetWorkflowDefinitionByProcessIdAndVersionNumber(processId, version);
netInstance = this.createNetInstance(def);
}
return(netInstance);
}