flowable-流程中心设计之中间事件

Posted 2022-01-19 意犹未尽

简介 

中间捕获事件，是可以作为一个流程节点存在，可以是抛出型,也可以是捕获型的

抛出型:抛出事件等待其他捕获型捕获比如开始事件、中间捕获事件、边界事件

捕获型:则是接收抛出型抛出的事件

中间定时事件

说明

中间定时事件是一个捕获事件，当执行到达捕获事件节点， 就会启动一个定时器。 当定时器触发（一段时间之后），流程就会沿着定时中间事件的外出节点继续执行。

可观察select * from act_ru_timer_job 此表

设计

用户下单节点完成后,会到达中间定时事件节点,同时select * from act_ru_timer_job 在这个表生成一条job记录 到达指定事件则完成此节点

相关参数设置

timeDate

在指定时间点执行 使用 ISO 8601

如：2011-03-11T12:13:14

<timerEventDefinition>
    <timeDate>2011-03-11T12:13:14</timeDate>
</timerEventDefinition>

 

timeDuration

指定定时器之前要等待多长时间， timeDuration可以设置为timerEventDefinition的子元素。 使用ISO 8601规定的格式 （由BPMN 2.0规定）。示例（等待10天）。

<timerEventDefinition>
    <timeDuration>P10D</timeDuration>
</timerEventDefinition>

 

timeCycle

指定重复执行的间隔， 可以用来定期启动流程实例，或为超时时间发送多个提醒。 timeCycle元素可以使用两种格式。第一种是 ISO 8601 标准的格式。示例（重复3次，每次间隔10小时）

<timerEventDefinition>
    <timeCycle>R3/PT10H</timeCycle>
</timerEventDefinition>

cron格式

如每月月初启动一个任务

0 0 2 1 * ?

xml

<?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:flowable="http://flowable.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.flowable.org/processdef">
  <process id="中间捕获事件测试" name="time_evet_test3" isExecutable="true">
    <startEvent id="startEvent1"></startEvent>
    <userTask id="sid-93595C49-26DA-44F2-9BDE-AFCA9023FEC7" name="用户下单" flowable:assignee="大力强">
      <extensionElements>
        <modeler:initiator-can-complete xmlns:modeler="http://flowable.org/modeler"><![CDATA[false]]></modeler:initiator-can-complete>
      </extensionElements>
    </userTask>
    <sequenceFlow id="sid-AF8BE282-7418-4245-8A59-D4A8AACCFB12" sourceRef="startEvent1" targetRef="sid-93595C49-26DA-44F2-9BDE-AFCA9023FEC7"></sequenceFlow>
    <intermediateCatchEvent id="sid-05568350-8BAC-4EEF-840D-D39156EDD500">
      <timerEventDefinition>
        <timeDuration>P5M</timeDuration>
      </timerEventDefinition>
    </intermediateCatchEvent>
    <sequenceFlow id="sid-AAEBC31E-FC1D-450F-B61B-9392C20DB6A0" sourceRef="sid-93595C49-26DA-44F2-9BDE-AFCA9023FEC7" targetRef="sid-05568350-8BAC-4EEF-840D-D39156EDD500"></sequenceFlow>
    <userTask id="sid-C91EBC29-619B-4F16-AC79-690ED1C4AE3E" name="生成发货单" flowable:assignee="大力强2">
      <extensionElements>
        <modeler:initiator-can-complete xmlns:modeler="http://flowable.org/modeler"><![CDATA[false]]></modeler:initiator-can-complete>
      </extensionElements>
    </userTask>
    <endEvent id="sid-7A2E09EE-59BF-49DA-9205-84E719AAA2D1"></endEvent>
    <sequenceFlow id="sid-A6A4D364-551C-4B12-B577-34A442980D26" sourceRef="sid-C91EBC29-619B-4F16-AC79-690ED1C4AE3E" targetRef="sid-7A2E09EE-59BF-49DA-9205-84E719AAA2D1"></sequenceFlow>
    <sequenceFlow id="sid-6EB75DA4-8C43-487F-8708-7634BA340DA7" name="延迟5分钟" sourceRef="sid-05568350-8BAC-4EEF-840D-D39156EDD500" targetRef="sid-C91EBC29-619B-4F16-AC79-690ED1C4AE3E"></sequenceFlow>
  </process>
  <bpmndi:BPMNDiagram id="BPMNDiagram_中间捕获事件测试">
    <bpmndi:BPMNPlane bpmnElement="中间捕获事件测试" id="BPMNPlane_中间捕获事件测试">
      <bpmndi:BPMNShape bpmnElement="startEvent1" id="BPMNShape_startEvent1">
        <omgdc:Bounds height="30.0" width="30.0" x="90.0" y="150.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="sid-93595C49-26DA-44F2-9BDE-AFCA9023FEC7" id="BPMNShape_sid-93595C49-26DA-44F2-9BDE-AFCA9023FEC7">
        <omgdc:Bounds height="80.0" width="100.0" x="165.0" y="125.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="sid-05568350-8BAC-4EEF-840D-D39156EDD500" id="BPMNShape_sid-05568350-8BAC-4EEF-840D-D39156EDD500">
        <omgdc:Bounds height="31.0" width="31.0" x="330.0" y="149.5"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="sid-C91EBC29-619B-4F16-AC79-690ED1C4AE3E" id="BPMNShape_sid-C91EBC29-619B-4F16-AC79-690ED1C4AE3E">
        <omgdc:Bounds height="80.0" width="100.0" x="450.0" y="125.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="sid-7A2E09EE-59BF-49DA-9205-84E719AAA2D1" id="BPMNShape_sid-7A2E09EE-59BF-49DA-9205-84E719AAA2D1">
        <omgdc:Bounds height="28.0" width="28.0" x="630.0" y="151.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNEdge bpmnElement="sid-AAEBC31E-FC1D-450F-B61B-9392C20DB6A0" id="BPMNEdge_sid-AAEBC31E-FC1D-450F-B61B-9392C20DB6A0">
        <omgdi:waypoint x="264.94999999999357" y="165.1906488549618"></omgdi:waypoint>
        <omgdi:waypoint x="330.0000092162973" y="165.43893173323616"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="sid-AF8BE282-7418-4245-8A59-D4A8AACCFB12" id="BPMNEdge_sid-AF8BE282-7418-4245-8A59-D4A8AACCFB12">
        <omgdi:waypoint x="119.94999848995758" y="165.0"></omgdi:waypoint>
        <omgdi:waypoint x="165.0" y="165.0"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="sid-A6A4D364-551C-4B12-B577-34A442980D26" id="BPMNEdge_sid-A6A4D364-551C-4B12-B577-34A442980D26">
        <omgdi:waypoint x="549.9499999999827" y="165.0"></omgdi:waypoint>
        <omgdi:waypoint x="630.0" y="165.0"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="sid-6EB75DA4-8C43-487F-8708-7634BA340DA7" id="BPMNEdge_sid-6EB75DA4-8C43-487F-8708-7634BA340DA7">
        <omgdi:waypoint x="361.9499176799087" y="165.44805221616247"></omgdi:waypoint>
        <omgdi:waypoint x="449.99999999999545" y="165.16217532467533"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
    </bpmndi:BPMNPlane>
  </bpmndi:BPMNDiagram>
</definitions>