Question

我使用以下代码更新Activiti中的任务。

@Service
@Log4j
public class TicketUpdateService {
    @Autowired
    TaskService taskService;

    @Autowired
    RuntimeService runtimeService;

    @Transactional
    public BaseDto updateTicket(TicketHistoryDto historyDto) {
              String taskId = historyDto.getTaskId();
              runtimeService.setVariable(historyDto.getExecutionId(), "STATE",
                historyDto.getTicketState());

    if (historyDto.getNotes() != null
                && historyDto.getNotes().trim().length() > 0) {
            log.info(" Setting the notes");
            taskService.setVariableLocal(taskId, "notes", historyDto
                    .getNotes().trim());
            ticket.setDescription(historyDto.getNotes().trim());
        }
        /** Update the Ticket Status */
        if (historyDto.getTicketStatusInfo() != null) {
            log.info(" Setting the Ticket Status as  "
                    + historyDto.getTicketStatusInfo());
            taskService.setVariableLocal(taskId, "ticketStatus",
                    historyDto.getTicketStatusInfo());
        }
         taskService.complete(taskId);
}  }

我需要使用任务变量来完成任务。为此，我使用以下代码

@Service
@Log4j
public class TicketActivitiServiceImpl{

     @Autowired
     private TaskService taskService;

     public List<Task> getTasks(){
        TaskQuery activitiQuery = taskService.createTaskQuery();

        // I can able to get the Task based Process variable 
        if (searchDto.getCategory() != null && searchDto.getCategory() > 0l) {
            log.info("Category Id : " + searchDto.getCategory());
            activitiQuery.processVariableValueEquals("category",
                    searchDto.getCategory());
        }
        if (searchDto.getSubCategory() != null
                && searchDto.getSubCategory() > 0L) {
            log.info("Sub Category Id : " + searchDto.getSubCategory());
            activitiQuery.processVariableValueEquals("subCategory",
                    searchDto.getSubCategory());

        }
        //  I am not able to get the task information after including the following code 
        //  I need the task based on Task Variable also 
       if (searchDto.getTicketStatus() != null
                && !"".equals(searchDto.getTicketStatus().trim())) {
            log.info("Ticket status : " + searchDto.getTicketStatus());
            activitiQuery.includeTaskLocalVariables()
                    .taskVariableValueEqualsIgnoreCase("ticketStatus",
                            searchDto.getTicketStatus().trim());

        }
        activitiQuery.taskCandidateOrAssigned("" + searchDto.getUserId());
        activitiQuery.orderByTaskCreateTime().desc();
        List<Task> taskList = activitiQuery.list();

    }
}

我需要根据Task变量和Process变量获取Running任务。我能够根据Process变量获取任务，但无法获得任务变量的任务

Answer 1

我将变量包含为任务变量。完成任务后，所有任务变量都移动到ACT_HI_TASKINST表。但查询尝试从ACT_RU_VARIABLE表中获取值。所以它不适用于下一个任务。

所以我替换了以下代码

taskService.setVariableLocal(taskId, "ticketStatus", historyDto.getTicketStatusInfo());

使用这行代码

taskService.setVariable(taskId, "ticketStatus", historyDto.getTicketStatusInfo());

它将变量作为过程变量插入。不作为任务变量。它在整个过程中都可用

Answer 2

请注意，可以为给定的执行设置变量的本地变量（请记住，流程实例由执行树组成）。该变量仅在该执行时可见，而在执行树中不高。如果数据不应传播到流程实例级别，或者变量在流程实例中具有某个路径的新值（例如，使用并行路径时），则此功能非常有用。

http://www.activiti.org/userguide/#apiVariables

如何从变量Local获取任务ID？

2 个答案: