文章目录

流程挂起与激活
流程实例挂起与激活
启动、处理、结束流程的原理
- 一、启动流程的原理
- - 启动一个流程实例时涉及到的表及表结构:
  - - ACT_RU_EXECUTION 运行时流程执行实例
    - ACT_RU_IDENTITYLINK 运行时用户关系信息
    - ACT_RU_TASK 运行时任务表
    - ACT_RU_VARIABLE 运行时变量表
- 二、处理流程的原理及相关表变动
- 三、流程结束的原理以及相关表变动
- - ACT_HI_PROCINST：历史流程实例表
  - ACT_HI_TASKINST：历史任务实例表（流程节点）
  - ACT_HI_VARINST：历史流程变量表
  - ACT_HI_IDENTITYLINK：历史用户关系表
  - ACT_HI_ACTINST：历史活动实例表（流程定义相关）

流程挂起与激活

部署的流程其默认状态为激活状态，若暂时不想使用该定义的流程，则可以进行挂起操作。流程定义为挂起状态时，该流程定义将不允许启动新的流程实例。且当前该流程定义下的流程实例全部挂起暂停执行。

 /**
 * 测试流程挂起与激活
 */
@Test
public void test_Suspended(){
    RepositoryService repositoryService = processEngine.getRepositoryService();
    // 获取对应的流程定义信息
    ProcessDefinition processDefinition = repositoryService.createProcessDefinitionQuery()
            .processDefinitionId("MyProcess:1:6").singleResult();
    // 获取当前流程定义的状态信息
    System.out.println("processDefinition.isSuspended() = " + processDefinition.isSuspended());
    if(processDefinition.isSuspended()){
        // 当前流程挂起，进行激活
        repositoryService.activateProcessDefinitionById(processDefinition.getId());
        System.out.println("激活流程===> " + processDefinition.getName() );
    }else {
        //  当前流程激活，进行挂起
        repositoryService.suspendProcessDefinitionById(processDefinition.getId());
        System.out.println("挂起流程===> " + processDefinition.getName() );
    }
}

/**
 * 测试启动流程
 * 当流程挂起的时候，执行启动流程操作会报错
 * org.flowable.engine.common.api.FlowableException: Cannot start process instance. Process definition MyProcess (id = MyProcess:1:6) is suspended
 */
@Test
public void test_runProcess(){
    RuntimeService runtimeService = processEngine.getRuntimeService();
    ProcessInstance processInstance = runtimeService.startProcessInstanceById("MyProcess:1:6");
    System.out.println("processInstance.getActivityId() = " + processInstance.getActivityId());
}

流程实例挂起与激活

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启动、处理、结束流程的原理

一、启动流程的原理

在这里插入图片描述
当我们启动了一个流程实例后，会在ACT_RU_*对应的表结构中操作,运行时实例涉及的表结构共10张:

ACT_RU_DEADLETTER_JOB 正在运行的任务表
ACT_RU_EVENT_SUBSCR 运行时事件
ACT_RU_EXECUTION 运行时流程执行实例
ACT_RU_HISTORY_JOB 历史作业表
ACT_RU_IDENTITYLINK 运行时用户关系信息
ACT_RU_JOB运行时作业表
ACT_RU_SUSPENDED_JOB 暂停作业表
ACT_RU_TASK 运行时任务表
ACT_RU_TIMERJOB定时作业表
ACT_RU_VARIABLE 运行时变是表

启动一个流程实例时涉及到的表及表结构:

ACT_RU_EXECUTION 运行时流程执行实例

ID_  |REV_|PROC_INST_ID_|BUSINESS_KEY_|PARENT_ID_|PROC_DEF_ID_   |SUPER_EXEC_|ROOT_PROC_INST_ID_|ACT_ID_                                 |IS_ACTIVE_|IS_CONCURRENT_|IS_SCOPE_|IS_EVENT_SCOPE_|IS_MI_ROOT_|SUSPENSION_STATE_|CACHED_ENT_STATE_|TENANT_ID_|NAME_|START_ACT_ID_|START_TIME_            |START_USER_ID_|LOCK_TIME_|IS_COUNT_ENABLED_|EVT_SUBSCR_COUNT_|TASK_COUNT_|JOB_COUNT_|TIMER_JOB_COUNT_|SUSP_JOB_COUNT_|DEADLETTER_JOB_COUNT_|VAR_COUNT_|ID_LINK_COUNT_|CALLBACK_ID_|CALLBACK_TYPE_|
-----+----+-------------+-------------+----------+---------------+-----------+------------------+----------------------------------------+----------+--------------+---------+---------------+-----------+-----------------+-----------------+----------+-----+-------------+-----------------------+--------------+----------+-----------------+-----------------+-----------+----------+----------------+---------------+---------------------+----------+--------------+------------+--------------+
10001|   1|10001        |qj1002       |          |MyHolidayUI:1:7|           |10001             |                                        |         1|             0|        1|              0|          0|                1|                 |whx       |     |startEvent1  |2023-01-19 12:58:59.447|              |          |                1|                0|          0|         0|               0|              0|                    0|         0|             0|            |              |
10005|   1|10001        |             |10001     |MyHolidayUI:1:7|           |10001             |sid-78EFF658-A003-460A-950A-764DC53C913F|         1|             0|        0|              0|          0|                1|                 |whx       |     |             | 2023-01-19 12:58:59.49|              |          |                1|                0|          1|         0|               0|              0|                    0|         0|             0|            |              |

在这里插入图片描述

ACT_RU_IDENTITYLINK 运行时用户关系信息

ID_  |REV_|GROUP_ID_|TYPE_      |USER_ID_|TASK_ID_|PROC_INST_ID_|PROC_DEF_ID_|SCOPE_ID_|SCOPE_TYPE_|SCOPE_DEFINITION_ID_|
-----+----+---------+-----------+--------+--------+-------------+------------+---------+-----------+--------------------+
10010|   1|         |participant|whx     |        |10001        |            |         |           |                    |
-- 其中 TYPE_字段的类型来自类：org.flowable.identitylink.service.IdentityLinkType
assignee指派人、candidate候选人、owner所有人、starter启动人、participant参与人

在这里插入图片描述

ACT_RU_TASK 运行时任务表

ID_  |REV_|EXECUTION_ID_|PROC_INST_ID_|PROC_DEF_ID_   |TASK_DEF_ID_|SCOPE_ID_|SUB_SCOPE_ID_|SCOPE_TYPE_|SCOPE_DEFINITION_ID_|NAME_ |PARENT_TASK_ID_父任务ID|DESCRIPTION_|TASK_DEF_KEY_                           |OWNER_|ASSIGNEE_指派|DELEGATION_委托|PRIORITY_|CREATE_TIME_           |DUE_DATE_|CATEGORY_|SUSPENSION_STATE_是是否挂起|TENANT_ID_租户id|FORM_KEY_表单key|CLAIM_TIME_|IS_COUNT_ENABLED_|VAR_COUNT_|ID_LINK_COUNT_|SUB_TASK_COUNT_|
-----+----+-------------+-------------+---------------+------------+---------+-------------+-----------+--------------------+------+---------------+------------+----------------------------------------+------+---------+-----------+---------+-----------------------+---------+---------+-----------------+----------+---------+-----------+-----------------+----------+--------------+---------------+
10008|   1|10005        |10001        |MyHolidayUI:1:7|            |         |             |           |                    |提交请假申请|               |            |sid-78EFF658-A003-460A-950A-764DC53C913F|      |whx      |           |       50|2023-01-19 12:58:59.495|         |         |                1|whx       |         |           |                1|         0|             0|              0|

在这里插入图片描述

ACT_RU_VARIABLE 运行时变量表

在这里插入图片描述

二、处理流程的原理及相关表变动

/**
* 带参的流程完成
* act_ru_task表记录的是当前流程实例所运行的节点。即待办任务
*/
@Test
public void test_runCompleteWithParams() {
   TaskService taskService = processEngine.getTaskService();
   Task task = taskService.createTaskQuery()
           .processInstanceId("10001").taskAssignee("whx").singleResult();
   Map<String, Object> processVariables = task.getProcessVariables();
   processVariables.forEach((k, v) -> {
       System.out.println(k + "~" + v);
   });
   processVariables.put("approved", true);
   processVariables.put("nrOfHolliday", 7);
   taskService.complete(task.getId(), processVariables);
}

ACT_RU_EXECUTION 运行时流程执行实例（不会做修改）
ACT_RU_IDENTITYLINK 运行时用户关系信息（会新增一条处理记录）

ACT_RU_TASK 运行时任务表（删除已完成的任务，新增待办）

ID_  |REV_|EXECUTION_ID_|PROC_INST_ID_|PROC_DEF_ID_   |TASK_DEF_ID_|SCOPE_ID_|SUB_SCOPE_ID_|SCOPE_TYPE_|SCOPE_DEFINITION_ID_|NAME_ |PARENT_TASK_ID_|DESCRIPTION_|TASK_DEF_KEY_                           |OWNER_|ASSIGNEE_|DELEGATION_|PRIORITY_|CREATE_TIME_           |DUE_DATE_|CATEGORY_|SUSPENSION_STATE_|TENANT_ID_|FORM_KEY_|CLAIM_TIME_|IS_COUNT_ENABLED_|VAR_COUNT_|ID_LINK_COUNT_|SUB_TASK_COUNT_|
-----+----+-------------+-------------+---------------+------------+---------+-------------+-----------+--------------------+------+---------------+------------+----------------------------------------+------+---------+-----------+---------+-----------------------+---------+---------+-----------------+----------+---------+-----------+-----------------+----------+--------------+---------------+
12503|   1|10005        |10001        |MyHolidayUI:1:7|            |         |             |           |                    |领导审批  |               |            |sid-2C6EBB59-7020-4067-B7F6-03A1F2494C5D|      |huathy   |           |       50|2023-01-20 14:41:56.644|         |         |                1|whx       |         |           |                1|         0|             0|              0|

ACT_RU_VARIABLE 运行时变量表（流程变量的更新）

三、流程结束的原理以及相关表变动

当一个流程完成处理的时候，会删除上述的四张运行时表ACT_RU_。中当前流程的数据，并转入历史表中。ACT_HI_。
所涉及到的表结构：

ACT_HI_PROCINST：历史流程实例表

ID_  |REV_|PROC_INST_ID_|BUSINESS_KEY_|PROC_DEF_ID_   |START_TIME_            |END_TIME_              |DURATION_|START_USER_ID_|START_ACT_ID_|END_ACT_ID_                             |SUPER_PROCESS_INSTANCE_ID_|DELETE_REASON_|TENANT_ID_|NAME_|CALLBACK_ID_|CALLBACK_TYPE_|
-----+----+-------------+-------------+---------------+-----------------------+-----------------------+---------+--------------+-------------+----------------------------------------+--------------------------+--------------+----------+-----+------------+--------------+
10001|   2|10001        |qj1002       |MyHolidayUI:1:7|2023-01-19 12:58:59.447|2023-01-21 06:02:51.449|147832002|              |startEvent1  |sid-BFA54F29-3329-4DA5-9F55-AF278B5508EC|                          |              |whx       |     |            |              |

ACT_HI_TASKINST：历史任务实例表（流程节点）

ID_  |REV_|PROC_DEF_ID_   |TASK_DEF_ID_|TASK_DEF_KEY_                           |PROC_INST_ID_|EXECUTION_ID_|SCOPE_ID_|SUB_SCOPE_ID_|SCOPE_TYPE_|SCOPE_DEFINITION_ID_|NAME_ |PARENT_TASK_ID_|DESCRIPTION_|OWNER_|ASSIGNEE_|START_TIME_            |CLAIM_TIME_|END_TIME_              |DURATION_|DELETE_REASON_|PRIORITY_|DUE_DATE_|FORM_KEY_|CATEGORY_|TENANT_ID_|LAST_UPDATED_TIME_     |
-----+----+---------------+------------+----------------------------------------+-------------+-------------+---------+-------------+-----------+--------------------+------+---------------+------------+------+---------+-----------------------+-----------+-----------------------+---------+--------------+---------+---------+---------+---------+----------+-----------------------+
10008|   2|MyHolidayUI:1:7|            |sid-78EFF658-A003-460A-950A-764DC53C913F|10001        |10005        |         |             |           |                    |提交请假申请|               |            |      |whx      |2023-01-19 12:58:59.515|           |2023-01-20 14:41:56.625| 92577110|              |       50|         |         |         |whx       |2023-01-20 14:41:56.625|
12503|   2|MyHolidayUI:1:7|            |sid-2C6EBB59-7020-4067-B7F6-03A1F2494C5D|10001        |10005        |         |             |           |                    |领导审批  |               |            |      |huathy   |2023-01-20 14:41:56.658|           | 2023-01-21 06:02:51.33| 55254672|              |       50|         |         |         |whx       | 2023-01-21 06:02:51.33|

ACT_HI_VARINST：历史流程变量表

在这里插入图片描述

ACT_HI_IDENTITYLINK：历史用户关系表

在这里插入图片描述

ACT_HI_ACTINST：历史活动实例表（流程定义相关）

D_  |REV_|PROC_DEF_ID_   |PROC_INST_ID_|EXECUTION_ID_|ACT_ID_                                 |TASK_ID_|CALL_PROC_INST_ID_|ACT_NAME_|ACT_TYPE_ |ASSIGNEE_|START_TIME_            |END_TIME_              |DURATION_|DELETE_REASON_|TENANT_ID_|
----+----+---------------+-------------+-------------+----------------------------------------+--------+------------------+---------+----------+---------+-----------------------+-----------------------+---------+--------------+----------+
0006|   1|MyHolidayUI:1:7|10001        |10005        |startEvent1                             |        |                  |         |startEvent|         |2023-01-19 12:58:59.491|2023-01-19 12:58:59.492|        1|              |whx       |
0007|   2|MyHolidayUI:1:7|10001        |10005        |sid-78EFF658-A003-460A-950A-764DC53C913F|10008   |                  |提交请假申请   |userTask  |whx      |2023-01-19 12:58:59.495|2023-01-20 14:41:56.639| 92577144|              |whx       |
2502|   2|MyHolidayUI:1:7|10001        |10005        |sid-2C6EBB59-7020-4067-B7F6-03A1F2494C5D|12503   |                  |领导审批     |userTask  |huathy   |2023-01-20 14:41:56.644|2023-01-21 06:02:51.375| 55254731|              |whx       |
5001|   1|MyHolidayUI:1:7|10001        |10005        |sid-BFA54F29-3329-4DA5-9F55-AF278B5508EC|        |                  |         |endEvent  |         |2023-01-21 06:02:51.408|2023-01-21 06:02:51.411|        3|              |whx       |