示例的意思_实例

jBPM5中的Reusable Sub-Process是在主流程里面执行另为一个流程（子流程），当流程执行到Reusable Sub-Process节点时jBPM5流程执行引擎根据提供的流程（子流程）ID，Reusable Sub-Process示例流程如下（主流程和子流程）：

主流程

子流程

Reusable Sub-Process示例流程运行时传入三条字符串message 1，message 2和message 3，在流程运行时主流程的Format tag节点中生成一个tag，在子流程Apply Tag中将生成的tsg添加到每一条消息的末尾，流程运行结束输出三条消息确认设定tag情况。主流程的Format tag节点为Service Task节点，运行时执行的Java代码如下：

System.out.println("Parent-process id = "+kcontext.getProcessInstance().getId()); java.text.SimpleDateFormat sdf = new java.text.SimpleDateFormat("mm-dd-yyyy"); kcontext.setVariable("tag", sdf.format(new java.util.Date(System.currentTimeMillis())));

子流程Apply Tag节点为Service Task节点，运行时执行的Java代码如下：

System.out.println("Child-process id = "+kcontext.getProcessInstance().getId()); java.util.List<String> taggedMessages = new java.util.ArrayList<String>(); for (Object message : internalMessages){ taggedMessages.add(((String)message)+" - "+internalTag); } kcontext.setVariable("internalMessages",taggedMessages);

• Reusable Sub-Process示例流程运行代码：https://github.com/kylinsoong/…/ReusableSubProcessStart.java
• Reusable Sub-Process示例流程：https://github.com/kylinsoong/…/reusableSubProcess-Parent.bpmn, https://github.com/kylinsoong/…/reusableSubProcess-Child.bpmn

运行org.jbpm.quickstarts.subprocess.ReusableSubProcessStart将会运行Reusable Sub-Process示例流程，ReusableSubProcessStart代码如下：

package org.jbpm.quickstarts.subprocess; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import org.drools.runtime.StatefulKnowledgeSession; import org.drools.runtime.process.ProcessInstance; import org.drools.runtime.process.WorkflowProcessInstance; import org.jbpm.quickstarts.QuickStartBase; public class ReusableSubProcessStart extends QuickStartBase { public static void main(String[] args) { new ReusableSubProcessStart().test(); } public void test() { StatefulKnowledgeSession ksession = createKnowledgeSession("quickstarts/reusableSubProcess-Parent.bpmn", "quickstarts/reusableSubProcess-Child.bpmn"); List<String> messages = new ArrayList<String>(); messages.add("message 1"); messages.add("message 2"); messages.add("message 3"); Map<String,Object> parameters = new HashMap<String, Object>(); parameters.put("messages", messages); //Start the process using its id ProcessInstance process = ksession.startProcess("org.jbpm.quickstarts.reusablesubprocessparent",parameters); messages = (List<String>) ((WorkflowProcessInstance)process).getVariable("messages"); for (String message : messages) { System.out.println("Message = "+message); } ksession.dispose(); } }

Reusable Sub-Process示例流程运行输出结果如下：

Parent-process id = 1 Child-process id = 2 Message = message 1 - 01-31-2013 Message = message 2 - 01-31-2013 Message = message 3 - 01-31-2013

如上01-31-2013为设定的tag。