jbpm简单示例

一．流程定义

1.流程定义图

2.processdefinition.xml

<?xml version="1.0" encoding="UTF-8"?>

 

<process-definition

  xmlns=""  name="decision-test">

 

   <swimlane name="initiator"></swimlane>

   <swimlane name="manager"></swimlane>

   <swimlane name="boss"></swimlane>

   <start-state name="request leave">

      <task name="requestleave" swimlane="initiator">

         <controller>

            <variable name="name" access="read,write,required"></variable>

            <variable name="day" access="read,write,required"></variable>

         </controller>

      </task>

      <transition name="" to="day&lt;=3" ></transition>

   </start-state>

   <decision name="day&lt;=3" expression="#{day le 3 ? 'yes' : 'no'}">

      <transition name="no" to="boss confirm"></transition>

      <transition name="yes" to="manager confirm"></transition>

   </decision>

   <task-node name="manager confirm">

      <task name="managerconfirm" swimlane="manager">

         <controller>

            <variable name="name" access="read"></variable>

            <variable name="day" access="read"></variable>

            <variable name="note1" access="read,write,required"></variable>

         </controller>

      </task>

      <transition name="" to="end"></transition>

   </task-node>

   <task-node name="boss confirm">

      <task name="bossconfirm" swimlane="boss">

         <controller>

            <variable name="name" access="read"></variable>

            <variable name="day" access="read"></variable>

            <variable name="note2" access="read,write,required"></variable>

         </controller>

      </task>

      <transition name="" to="end"></transition>

   </task-node>

   <end-state name="end"></end-state>

</process-definition>

 

流程中涉及的技术名词：

1． process definition

一个process definition代表了一个正式的业务流程，它以一个流程图为基础。这个流程图由许多node和transition组成。每个node在这个流程图里都有着各自特殊的类型，这些不同的类型决定了node在运行时的不同行为。一个process definition只有一个start state 。

 2． process instance

一个process instance（流程实例）即一个process definition（流程定义）的流程执行实例。一个process definition可以对应多个process instance。当一个process instance被创建的时候，一个主执行路径token同时被创建，这个token叫做root token，它指向流程定义的start state</sp>