---

补偿边界/补偿中间事件

补偿事件可以被触发来回滚或修复之前已经完成的任务或活动。

补偿事件通常与错误边界事件（Error Boundary Event）结合使用。当任务或活动发生异常时，错误边界事件将被触发，进而触发相应的补偿事件。

补偿任务必须设置isForCompensation=true，否则报错。

<!-- 补偿边界事件 -->
<boundaryEvent id="sid-e212b29a-ee63-44e7-aa0d-dc3747d65292" name="补偿边界事件" attachedToRef="sid-27eea210-df9e-4d0f-baee-5e14af7fa0a5" cancelActivity="true"><compensateEventDefinition/>
</boundaryEvent>

<!-- 补偿中间事件-抛出 -->
<intermediateThrowEvent id="sid-d1d8eca9-f921-4e29-9112-2872519f0a3b" name="补偿中间事件"><compensateEventDefinition/>
</intermediateThrowEvent >

<!-- 虚线连接 -->
<association id="sid-ea9e367e-b7ed-46ed-9403-acea8418ffef" sourceRef="sid-e212b29a-ee63-44e7-aa0d-dc3747d65292" targetRef="sid-0cafc7be-15c3-403d-bbfc-b7ac67d2f768" associationDirection="None"/>

代码实现

xml文件

<?xml version="1.0" encoding="UTF-8"?>
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sourceRef="sid-7dc3694c-934a-4d35-881b-70bbe4301fcf" targetRef="sid-f12484f1-2a44-49c2-80b9-efcac32b9cf1"/><!-- 银行入账 --><serviceTask id="sid-941a247c-a43b-44b7-bf2a-c4c6c1b97f99" activiti:exclusive="true" activiti:delegateExpression="${myServiceTaskListener}" name="银行入账"/><sequenceFlow id="sid-05d783bf-185d-4220-83d8-ae2beccc79f4" sourceRef="sid-f12484f1-2a44-49c2-80b9-efcac32b9cf1" targetRef="sid-941a247c-a43b-44b7-bf2a-c4c6c1b97f99"/><!-- 检验结果 --><serviceTask id="sid-7ef12140-baa4-4bff-a229-74b368c49fd8" activiti:exclusive="true" activiti:delegateExpression="${myThrowErrorDelegateListener}" name="检验结果"/><sequenceFlow id="sid-fc528896-5253-4ecd-814d-45b04e7675fb" sourceRef="sid-941a247c-a43b-44b7-bf2a-c4c6c1b97f99" targetRef="sid-7ef12140-baa4-4bff-a229-74b368c49fd8"/><!-- 结束事件1 --><endEvent id="sid-86a2c6a3-6e83-46c5-ae45-92820324b502" name="结束事件1"/><sequenceFlow id="sid-798a901a-081f-477f-b370-16258ccf0e4b" sourceRef="sid-7ef12140-baa4-4bff-a229-74b368c49fd8" targetRef="sid-86a2c6a3-6e83-46c5-ae45-92820324b502"/><!-- 错误边界事件 --><boundaryEvent id="sid-e7576742-080e-4dda-9a8b-a6e5241906f0" attachedToRef="sid-7ef12140-baa4-4bff-a229-74b368c49fd8" name="错误边界事件"><errorEventDefinition errorRef="error1"/></boundaryEvent><!-- 补偿中间事件-抛出 --><intermediateThrowEvent id="sid-d1d8eca9-f921-4e29-9112-2872519f0a3b" name="补偿中间事件"><compensateEventDefinition/></intermediateThrowEvent ><sequenceFlow id="sid-2fdee7fd-7171-470e-8b7f-2c0c3f351d1d" sourceRef="sid-e7576742-080e-4dda-9a8b-a6e5241906f0" targetRef="sid-d1d8eca9-f921-4e29-9112-2872519f0a3b"/><!-- 结束事件2 --><endEvent id="sid-76f8e2ab-30a0-46df-8ede-819cee3fd3c4" name="结束事件2"/><sequenceFlow id="sid-2435a8ad-769a-464b-8b17-4d8ccaa68db4" sourceRef="sid-d1d8eca9-f921-4e29-9112-2872519f0a3b" targetRef="sid-76f8e2ab-30a0-46df-8ede-819cee3fd3c4"/><!-- 钱包补偿任务 --><serviceTask id="sid-ae4a072e-bd85-4454-9450-a3e0982fbde4" activiti:exclusive="true" activiti:delegateExpression="${myServiceTaskListener}" 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</definitions>

测试流程

@Test
public void deployAndStartProcess() {// 部署流程Deployment deploy = repositoryService.createDeployment().addClasspathResource("processes/compensate.bpmn20.xml").deploy();System.out.println("deploy = " + deploy);// 启动流程String processDefinitionKey = "compensate";ProcessInstance processInstance = runtimeService.startProcessInstanceByKey(processDefinitionKey, processDefinitionKey + ":1000001");System.out.println("processInstance = " + processInstance);
}

流程执行步骤

// 1.部署并启动流程
// 2.触发钱包服务任务、银行服务任务、检验结果服务任务
// 3.触发错误边界事件，抛出错误码，触发补偿中间事件
// 4.触发钱包补偿边界事件，并触发钱包补偿任务
// 5.触发银行补偿边界事件，并触发银行补偿任务
// 6.结束流程