[jboss-user] [JBoss jBPM] - Re: How to filter TaskList items ?
In my customized Workflow web application, I get the Tasks I want in my action class. Here
are two methods that may help or give you ideas.
I simply add the retrieved list as a request attribute, and then code my JSP page displays
whatever I want it to.
/**
| * Gets all task instances that a user with the given actor id could claim.
| * @return List of jbpm task instances.
| */
| public static List getUnClaimedTaskInstancesForActorId (JbpmContext jbpmContext,
String actorId) {
| Session session = jbpmContext.getSession();
|
| //create list of possible id's (this includes groups) that
| //belong to the current user.
| List actorsList = new ArrayList();
| actorsList.add(actorId);
| IdentitySession identitySession = new IdentitySession(session);
| org.jbpm.identity.User jbpmUser = identitySession.getUserByName(actorId);
| Iterator i = jbpmUser.getMemberships().iterator();
| while(i.hasNext()){
| Membership m = (Membership) i.next();
| actorsList.add(m.getGroup().getName());
| }
| List pooledTaskInstances =
jbpmContext.getTaskMgmtSession().findPooledTaskInstances(actorsList);
| List jbpmTaskInstanceList = session.createQuery("from
org.jbpm.taskmgmt.exe.TaskInstance ti where ti.start is null and ti.end is null and
actorId = '"+actorId+"'").list();
| //add pooledTaskInstances to taskList
| jbpmTaskInstanceList.addAll(pooledTaskInstances);
|
| //TODO sort jbpmTaskInstanceList by task instance id
|
| return jbpmTaskInstanceList;
| }
/**
| * Retrieves a list of TaskInstance objects for a given user, that he has
claimed/started.
| * @param actorId
| * @return
| */
| private List getClaimedTasks(String actorId) {
| Session session = jbpmContext.getSession();
| List jbpmTaskInstanceList = session.createQuery("from
org.jbpm.taskmgmt.exe.TaskInstance ti where ti.start is not null and ti.end is null and
actorId = '"+actorId+"'").list();
| return jbpmTaskInstanceList;
| }
I also have some more complex method which are relevant to my web app, like retrieving
tasks for everyone in your team etc. But that's all dependant on your identity
component.
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