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Re: How to use task and state in jbpm 4.4
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created by <a href="http://community.jboss.org/people/whizkid.samrat">Samrat Roy</a> in <i>jBPM</i> - <a href="http://community.jboss.org/message/604404#604404">View the full discussion</a>
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<div class="jive-rendered-content"><p>There are multiple ways of doing it .. the way i have tackled it is :</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Here is some sample code from my project.. I thought the best way was sharing related code. </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="color: #ff6600;"><strong>// Controller code for .. notice approval or rejects comes from the same jsp in a parameter. :  The task Id is the is id of the task created for the user .. {lookup taskservice.. } you will need this taskid to track actions performed on a task .. </strong></span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>protected ModelAndView onSubmit(HttpServletRequest request, HttpServletResponse response, Object command, BindException errors) throws ServletException {</p><p>        String requestId = request.getParameter("requestId");</p><p>       <strong> String status = request.getParameter("status");     // approved OR rejected captured from JSP<br/></strong></p><p>      <strong>  String taskId = request.getParameter("taskId");</strong></p><p>        String taskType=request.getParameter("taskType");</p><p>        LoginUser loginUser =(LoginUser)request.getSession().getAttribute(MasterUtil.LOGGED_USER);</p><p>       <strong> lmsService.approval(requestId,status,taskId,taskType,loginUser.getUsername());   // service method</strong></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        Map retMap = new HashMap();</p><p>        try {</p><p>        retMap.putAll(referenceData(request));</p><p>        } catch (Exception e) {</p><p>            // TODO Auto-generated catch block</p><p>            e.printStackTrace();</p><p>        }</p><p>        //return new ModelAndView("redirect:/approveLeave.htm",retMap);</p><p>        return new ModelAndView(getFormView(),retMap);</p><p>    }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="color: #ff9900;">// This is a method from lmsservice.. <strong>lmsService.approval() </strong>which takes care of the inputs from the controller.</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>public void approval(String requestID, String status ,String taskId,String taskType,String userId) {</p><p>        if(status.equals("rejected")){</p><p>            ApproveLeaveModel aml =leaveModuleDao.getLeaveRequestbyId(requestID); </p><p>            leaveModuleDao.manageLC(aml.getDays(),aml.getRequestorEmpCode(),aml.getDetails());</p><p>        }</p><p>        //leaveModuleDao.changeLeaveStatus(requestID, status);</p><p>        Map<String,Object> variables = new HashMap<String,Object>();</p><p>       <strong> variables.put("decision", status);                 // this is where you setup a variable in the process .. let a decision state decide on the //basis of this variable and take the appropriate route .. attached my jpdl image</strong></p><p>       <strong> taskService.setVariables(taskId, variables); // assign variable to the process instance. </strong></p><p>        if(taskType.equals("g")){</p><p>            taskService.takeTask(taskId, userId);</p><p>        }</p><p>      <strong>  taskService.completeTask(taskId);   // This completes a task marked by a  specific task id</strong></p><p>    }</p></div>
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