Examples of org.jbpm.taskmgmt.exe.TaskInstance

org.jbpm.taskmgmt.exe.TaskInstance
is one task instance that can be assigned to an actor (read: put in someones task list) and that can trigger the coninuation of execution of the token upon completion.


  public String save() {
    log.debug("saving the task parameters " + taskFormParameters);


    // submit the parameters in the jbpm task controller
    TaskInstance taskInstance = taskMgmtSession.loadTaskInstance(taskInstanceId);


    // collect the parameter values from the values that were updated in the
    // parameters by jsf.
    Iterator iter = taskFormParameters.iterator();
    while (iter.hasNext()) {
      TaskFormParameter taskFormParameter = (TaskFormParameter) iter.next();


      if ((taskFormParameter.isWritable()) && (taskFormParameter.getValue() != null)) {
        log.debug("submitting [" + taskFormParameter.getLabel() + "]=" + taskFormParameter.getValue());
        taskInstance.setVariable(taskFormParameter.getLabel(), taskFormParameter.getValue());
      } else {
        log.debug("ignoring unwritable [" + taskFormParameter.getLabel() + "]");
      }
    }

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    save();


    // close the task instance
    String transitionButton = JsfHelper.getParameter("taskform:transitionButton");
    log.debug("Submitted button:" + transitionButton);
    TaskInstance taskInstance = taskMgmtSession.loadTaskInstance(taskInstanceId);
    if ("Save and Close Task".equals(transitionButton)) {
      taskInstance.end();
    } else {
      taskInstance.end(transitionButton);
    }


    ProcessInstance processInstance = taskInstance.getTaskMgmtInstance().getProcessInstance();
    if (processInstance.hasEnded()) {
      JsfHelper.addMessage("The process has finished.");
    }


    LoggingInstance loggingInstance = processInstance.getLoggingInstance();

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  public void execute(ExecutionContext executionContext) {
    if (isConversationEnd) {
      // get the outer business process task instance
      ContextInstance contextInstance = executionContext.getContextInstance();
      String variableName = "taskInstance";
      TaskInstance taskInstance = (TaskInstance) contextInstance.getVariable(variableName);
      
      // complete the task
      if (outcome==null) {
        taskInstance.end();
      } else {
        taskInstance.end(outcome);
      }
    }
  }

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  }


  private void initialize() {
    JbpmContext jbpmContext = JbpmContext.getCurrentJbpmContext(); 
    if (this.taskInstanceId > 0) {
      TaskInstance taskInstance = jbpmContext.getTaskMgmtSession().loadTaskInstance(taskInstanceId);
      currentToken = taskInstance.getToken();
    }
    else
    {
      if (this.tokenInstanceId > 0) 
        currentToken = jbpmContext.getGraphSession().loadToken(this.tokenInstanceId);

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    // Tasks list
    tasks = new ArrayList();
    if (processInstance.getTaskMgmtInstance().getTaskInstances().isEmpty() == false) {
      Iterator tasksIterator = processInstance.getTaskMgmtInstance().getTaskInstances().iterator();
      while (tasksIterator.hasNext()) {
        TaskInstance taskInstance = (TaskInstance) tasksIterator.next();
        tasks.add(new TaskBean(taskInstance.getId(), taskInstance.getName(), taskInstance.getActorId(), taskInstance.getEnd()));
      }
    }


  }

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    ProcessInstance processInstance = null;


    JbpmContext jbpmContext = JbpmContext.getCurrentJbpmContext();
    if (this.taskInstanceId > 0) {
      TaskMgmtSession taskMgmtSession = jbpmContext.getTaskMgmtSession();
      TaskInstance taskInstance = taskMgmtSession.loadTaskInstance(this.taskInstanceId);
      if (transitionName.equals("")) {
        taskInstance.end();
      } else {
        taskInstance.end(transitionName);
      }
      processInstance = taskInstance.getToken().getProcessInstance();
    } else if (this.tokenInstanceId > 0) {
      GraphSession graphSession = jbpmContext.getGraphSession();
      Token token = graphSession.loadToken(this.tokenInstanceId);
      if (transitionName.equals("")) {
        token.signal();

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    selectTask();


    JbpmContext jbpmContext = JbpmContext.getCurrentJbpmContext();
    TaskMgmtSession taskMgmtSession = jbpmContext.getTaskMgmtSession();


    TaskInstance taskInstance = taskMgmtSession.loadTaskInstance(this.taskInstanceId);


    if (taskInstance.getAvailableTransitions().size() > 1) {
      initializeAvailableTransitions(taskInstance);
      return "showTransitions";
    }


    taskInstance.end();


    ProcessInstance processInstance = taskInstance.getToken().getProcessInstance();
    jbpmContext.save(processInstance);


    this.initializeTasksList(processInstance);
    this.initializeTokensList(processInstance);

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public class DefaultTaskInstanceFactoryImpl implements TaskInstanceFactory {


  private static final long serialVersionUID = 1L;


  public TaskInstance createTaskInstance(ExecutionContext executionContext) {
    return new TaskInstance();
  }

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  /**
   * get the task instance for a given task instance-id.
   */
  public TaskInstance loadTaskInstance(long taskInstanceId) {
    TaskInstance taskInstance = null;
    try {
      taskInstance = (TaskInstance) session.load(TaskInstance.class, new Long(taskInstanceId));
    } catch (Exception e) {
      log.error(e);
      jbpmSession.handleException();

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      beginSessionTransaction();
    }


    List taskInstances = taskMgmtSession.findTaskInstances("victim");
    assertEquals(1, taskInstances.size());
    TaskInstance taskInstance = (TaskInstance) taskInstances.get(0);
    taskInstance.setVariable("a", "value a updated");
    taskInstance.setVariable("b", "value b updated");
    taskInstance.end();
    
    jbpmContext.save(taskInstance);
    long taskInstanceId = taskInstance.getId();
    long tokenId = taskInstance.getToken().getId();
    newTransaction();
    
    taskInstance = jbpmContext.loadTaskInstance(taskInstanceId);
    assertEquals("value a updated", taskInstance.getVariable("a"));
    assertEquals("value b updated", taskInstance.getVariable("b"));
    
    Token token = jbpmContext.loadToken(tokenId);
    ContextInstance subContextInstance = token.getProcessInstance().getContextInstance();
    assertEquals("value a", subContextInstance.getVariable("a"));
    assertEquals("value b updated", subContextInstance.getVariable("b"));

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