jbpm4 java节点动态传参

在jbpm4 beta2上实践了两天向java node传递参数，都无果而终，6月5日 jbpm4 CR1 版本发布了，并且解决了无法向java节点传递参数的bug
JBPM4 CR1 releasedhttp://www.jboss.org/feeds/post/jbpm_4_0_cr1_released
JBPM-2279 https://jira.jboss.org/jira/browse/JBPM-2279
今天参考Schema实践了一把，终于找到了能将上下文中参数传递到java节点中的方法，流程源文件（对源文件进行了少许修改，如有错误请自行调试）如下

1. 流程定义文件：

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

<process name="test">
   <start g="208,15,92,52" name="start">
      <transition to="doCreate"/>
   </start>
   <java class="com.synnex.jbpm.test.java.TestOperator" g="330,79,92,52" method="doCreate" name="doCreate" var="ret">
      <transition to="end"/>
<!-- 关键就在这个地方，直接将变量名赋值给ref元素的object属性，在java节点中既可以取道对象的值-->
      <arg><ref object="batchNo"/></arg>
      <arg><ref object="list"/></arg>
   </java>
   <end g="223,546,48,48" name="end"/>
</process>

2. java节点文件：

package com.synnex.jbpm.test.java;

import java.util.List;

import org.apache.log4j.Logger;
import org.jbpm.pvm.internal.env.ExecutionContext;

public class TestOperator {
	
	public boolean doCreate(String batchNo, List l){
		try{
			System.out.println("----------------------------------------------batchNo = " + batchNo);
			System.out.println("----------------------------------------------list[1] = " +(String)l.get(0));
			
		}catch(Exception e){
			e.printStackTrace();
		}
		return true;
	}
}

3. Main：

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.jbpm.api.Configuration;
import org.jbpm.api.ExecutionService;
import org.jbpm.api.HistoryService;
import org.jbpm.api.ManagementService;
import org.jbpm.api.ProcessEngine;
import org.jbpm.api.ProcessInstance;
import org.jbpm.api.RepositoryService;
import org.jbpm.api.TaskService;


public class Test {

	/**
	 * @param args
	 */
	public static void main(String[] args) {		
		Test test = new Test();
		test.deploy();
		test.start();
	}

	ProcessEngine processEngine = new Configuration()
      .buildProcessEngine();
	
	RepositoryService repositoryService = processEngine.getRepositoryService();
	ExecutionService executionService = processEngine.getExecutionService();
	TaskService taskService = processEngine.getTaskService();
	HistoryService historyService = processEngine.getHistoryService();
	ManagementService managementService = processEngine.getManagementService();
//发布流程	
	public void deploy(){
		
		long deploymentDbid = repositoryService.createDeployment()
	    .addResourceFromClasspath("com/synnex/jbpm/test/processes/test.jpdl.xml")
	    .deploy();
		System.out.println(deploymentDbid);
	}
//启动流程
	public void start(){
		Map<String,Object> variables = new HashMap<String,Object>();
//设置两个变量，一个字符串，一个List，传给Java节点
		List l = new ArrayList();
		l.add("Hello, I am a String~");
		variables.put("batchNo", "12");
		variables.put("list", l);
		ProcessInstance pi = executionService.startProcessInstanceByKey("test", variables);
	}

}