Hello,
Just wanted to share how I accomplished this query. although it is not, let say
hibernate way or jbpm way, but it work.
|
| @SuppressWarnings("unchecked")
| public List<Task> findNextTasksByProcessInstance(final ProcessInstance
process)
| {
| try {
| return (List<Task>) jbpmTemplate.execute(new
JbpmCallback() {
|
| public Object doInJbpm(JbpmContext context)
| throws JbpmException {
|
| final long processDefId =
process.getProcessDefinition().getId();
|
| final GraphSession sess =
context.getGraphSession();
| final ProcessDefinition def =
sess.getProcessDefinition(processDefId);
| final Map<String, Task> task =
def.getTaskMgmtDefinition().getTasks();
| final Set<String> taskSet =
task.keySet();
|
| final Session session =
context.getSession();
| final Query query =
session.getNamedQuery("findNextTasksByProcessInstance");
| query.setEntity("processInstance",
process);
| final List<String> taskInstance =
query.list();
|
| return
JbpmEngineUtils.getNextTasks(taskSet, taskInstance, task);
| }
| });
| } catch (Exception e) {
| throw new CCTIException("No task instance get", e);
| }
| }
|
then subtract the activeTask from possibletask:
| public static List<String> getNextTasks(Set<String>
possibleTask,List<String> completedTask,Map<String,Task> task)
| {
| final List<String> nextTasks = new ArrayList<String>();
|
| final Set<String> tmpPossibleTask = new
HashSet<String>(possibleTask);
| final List<String> tmpActiveTask = new
ArrayList<String>(completedTask);
| final Map<String, Task> mapTask = new HashMap<String,
Task>(task);
|
| for(String s : tmpActiveTask)
| {
| if ( tmpPossibleTask.contains(s) )
| {
| tmpPossibleTask.remove(s);
| }
| }
| Iterator<String> ite = tmpPossibleTask.iterator();
| while (ite.hasNext()) {
| final String string = ite.next();
| final Task taskLeft = mapTask.get(string);
| nextTasks.add(taskLeft.getDescription());
| }
| return nextTasks;
| }
|
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