代码

/**
 * <pre>                                 同意
 *     S -> [提交] -> [审批] -> X审批意见X ----> [扣除假期] -> E
 *                                |                        ^
 *                                |拒绝                     |
 *                                +------------------------+
 * </pre>
 *
 * @author jinli
 */
public class Modeler {
    public static void main(String[] args) {
        BpmnModelInstance inst = Bpmn.createExecutableProcess("vacation")
                .name("请假流程")
                .camundaHistoryTimeToLive(0)
                .startEvent()
                .name("启动")
                .userTask()
                .name("提交")
                .camundaAssignee("demo")
                .userTask()
                .name("审批")
                .camundaAssignee("demo")
                .camundaExecutionListenerExpression("start", "${execution.setVariableLocal(\\"approved\\", false)}")
                .exclusiveGateway()
                .id("gateway")
                .name("审批意见")
                .gatewayDirection(GatewayDirection.Diverging)
                .condition("同意", "${approved}")
                .scriptTask()
                .name("扣除假期")
                .scriptFormat("groovy")
                .scriptText("System.out.println(\\">>> \\" + \\"扣除假期\\");")
                .endEvent()
                .id("End")
                .name("结束")
                .moveToNode("gateway")
                .condition("拒绝", "${!approved}")
                .connectTo("End")
                .done();

        Bpmn.validateModel(inst);
        Bpmn.writeModelToFile(new File("src/main/resources/bpmn", "Modeler-API.bpmn"), inst);
    }
}

效果

XML解析

public class Modeler {
    public static void main(String[] args) {
        BpmnModelInstance inst = Bpmn.createExecutableProcess("proc")
                .startEvent()
                .id("start")
                .sequenceFlowId("s1")
                .userTask()
                .id("user")
                .sequenceFlowId("s2")
                .camundaAssignee("demo")
                .endEvent()
                .id("end")
                .done();

        Bpmn.validateModel(inst);
        Bpmn.writeModelToFile(new File("src/main/resources/bpmn", "Modeler-API.bpmn"), inst);
    }
}