Activiti

Question

我们在这个场景中使用了 Activiti 工作流引擎：

<?xml version="1.0" encoding="UTF-8"?>
<definitions xmlns="http://www.omg.org/spec/BPMN/20100524/MODEL" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:activiti="http://activiti.org/bpmn" xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" xmlns:omgdc="http://www.omg.org/spec/DD/20100524/DC" xmlns:omgdi="http://www.omg.org/spec/DD/20100524/DI" typeLanguage="http://www.w3.org/2001/XMLSchema" expressionLanguage="http://www.w3.org/1999/XPath" targetNamespace="http://www.activiti.org/test">
<signal id="alertSignal" name="alert" />
  <process id="myProcess" name="myProcess" isExecutable="true">
    <subProcess id="subprocess1" name="Sub Process">
      <startEvent id="startevent2" name="Start"></startEvent>
      <endEvent id="endevent1" name="End"></endEvent>
      <userTask id="verifico-id-transitorio-paciente" name="verifico-id-transitorio-paciente">
        <extensionElements>
          <activiti:taskListener event="create" expression="#{INTERNA_LOGICA_TRAMITE.setearPermisoTarea(task)}"></activiti:taskListener>
          <activiti:taskListener event="create" expression="#{INTERNA_LOGICA_TRAMITE.setearPermisoDependencia(task)}"></activiti:taskListener>
        </extensionElements>
      </userTask>
      <sequenceFlow id="flow1" sourceRef="startevent2" targetRef="verifico-id-transitorio-paciente"></sequenceFlow>
      <sequenceFlow id="flow2" sourceRef="verifico-id-transitorio-paciente" targetRef="parallelgateway1"></sequenceFlow>
      <parallelGateway id="parallelgateway1" name="Parallel Gateway"></parallelGateway>
      <sequenceFlow id="flow10" sourceRef="parallelgateway1" targetRef="ingreso-formulario-ConMed"></sequenceFlow>
      <intermediateThrowEvent id="signalintermediatethrowevent1" name="SignalThrowEvent">
        <signalEventDefinition signalRef="alertSignal"></signalEventDefinition>
      </intermediateThrowEvent>
      <sequenceFlow id="flow11" sourceRef="parallelgateway1" targetRef="signalintermediatethrowevent1"></sequenceFlow>
      <userTask id="ingreso-formulario-ConMed" name="ingreso-formulario-ConMed">
        <extensionElements>
          <activiti:taskListener event="create" expression="#{INTERNA_LOGICA_TRAMITE.setearPermisoTarea(task)}"></activiti:taskListener>
          <activiti:taskListener event="create" expression="#{INTERNA_LOGICA_TRAMITE.setearPermisoDependencia(task)}"></activiti:taskListener>
        </extensionElements>
      </userTask>
      <sequenceFlow id="flow13" sourceRef="ingreso-formulario-ConMed" targetRef="endevent1"></sequenceFlow>
    </subProcess>
    <subProcess id="subprocess2" name="Sub Process">
      <startEvent id="startevent3" name="Start"></startEvent>
      <endEvent id="endevent2" name="End"></endEvent>
      <userTask id="ingreso-formulario-Con" name="ingreso-formulario-Con">
        <extensionElements>
          <activiti:taskListener event="create" expression="#{INTERNA_LOGICA_TRAMITE.setearPermisoTarea(task)}"></activiti:taskListener>
          <activiti:taskListener event="create" expression="#{INTERNA_LOGICA_TRAMITE.setearPermisoDependencia(task)}"></activiti:taskListener>
        </extensionElements>
      </userTask>
      <sequenceFlow id="flow5" sourceRef="startevent3" targetRef="ingreso-formulario-Con"></sequenceFlow>
      <sequenceFlow id="flow6" sourceRef="ingreso-formulario-Con" targetRef="endevent2"></sequenceFlow>
    </subProcess>
    <startEvent id="startevent1" name="Start"></startEvent>
    <subProcess id="subprocess3" name="Sub Process">
      <userTask id="modifico-formulario-ConMed" name="modifico-formulario-ConMed">
        <extensionElements>
        </extensionElements>
      </userTask>
      <startEvent id="startevent4" name="Start"></startEvent>
      <endEvent id="endevent3" name="End"></endEvent>
      <sequenceFlow id="flow8" sourceRef="startevent4" targetRef="modifico-formulario-ConMed"></sequenceFlow>
      <sequenceFlow id="flow9" sourceRef="modifico-formulario-ConMed" targetRef="endevent3"></sequenceFlow>
    </subProcess>
    <sequenceFlow id="flow3" sourceRef="startevent1" targetRef="subprocess1"></sequenceFlow>
    <sequenceFlow id="flow4" sourceRef="subprocess1" targetRef="subprocess2"></sequenceFlow>
    <endEvent id="endevent4" name="End"></endEvent>
    <sequenceFlow id="flow7" sourceRef="subprocess2" targetRef="endevent4"></sequenceFlow>
    <startEvent id="signalstartevent1" name="Signal start">
      <signalEventDefinition signalRef="alertSignal"></signalEventDefinition>
    </startEvent>
    <sequenceFlow id="flow14" sourceRef="signalstartevent1" targetRef="subprocess3"></sequenceFlow>
  </process>
</definitions>

并且 act_ru_execution table 显示 2 个子进程是 2 个没有父进程的独立进程：

是否可以获取子进程的父进程以及它如何在 activiti 的数据库中表示？因为我们没有找到那个关系。

在我们的场景中是否可以将主流程的所有变量传递给子流程？

Answer 1

父进程

如何进入ServiceTask：

Select 将给定流程实例作为子流程实例的流程实例。请注意，始终最多只有 one 个这样的流程实例可以作为此查询的结果。 runtimeService.createProcessInstanceQuery().subProcessInstanceId(subProcessInstanceId).list();

在数据库中：

ACT_RU_EXECUTION 有两个属性 PARENT_ID_ 和 SUPER_EXEC_.

PARENT_ID_ 在树层次结构中向上但在一个进程中的执行 ID（例如并行执行，...）
SUPER_EXEC_ process/subprocess关系中超级执行的id

具有并行执行和一个子流程的 ACT_RU_EXECUTION table 流程示例：

将所有变量传递给子进程

在流程定义中手动或通过侦听器实现动态。

Answer 2

在执行过程中，确定子流程的关键是<parent_process_id>-<sub-process-id>。如果您通过 - runtimeService.createProcessInstanceQuery().processDefinitionKey("your-key")

查询子流程的密钥，此 key 将为您提供所需的结果

Activiti - 子流程的父流程

Activiti - Parent process of subprocess

workflow

subprocess