List task comments with Activity name

[edeleflie]

I'm finding the HistoryService's API slightly criptic.

I'd like to display, for any given ProcessInstance, all the activity-names it passed through, and the list of comments added each of those tasks.

what I do is retrieve all the HistoryTasks. Then use their Id's to retrieve all the HistoryComments. ... but the HistoryTask does not give me the activity name! (it gives me the outcome, however).

To get the activity-name, I have to go into a completely separate API space ... via the HistoryActivityInstanceQuery. Then I can do HistoryActivityInstance.getActivityName(). But this object does not expose access to comments!

I can find no programmatic way to associate a HistoryActivityInstance with a HistoryTask .. meaning that I have no way to associate Task Comments to their task's activity names.

Have I missed something? .. is there a way to retrieve comments listed by activity name?

I feel as though JBPM4's API is driven by something other than end-user logic. Maybe it is driven by some complex DB restrictions or something. I dont understand why I cant do (groovy syntax):

tasks = History.getTasks(proccessInstanceId)
tasks.each { task ->
println(task.getActivityName())
task.comments.each { comment ->
println(comment.getMessage())
}
}

[edeleflie]

maybe my question is not clear.

Can anyone come up with a way to display all the historical activityNames of a ProcessInstance and, under each, display all the historical comments added when in that activity?

I believe this is not possible.

[rmoskal]

The only way I've found to do this is to explicitly find the task for an activity using taskService.createTaskQuery(). Then I get the comments using taskService.getTaskComments().

Good luck.

Robert

[kukeltje]

please look in the jira. There is a history issue. vote for it and refer to this post

[sebastian.s]

Seems the issue you mentioned got postponed, Ronald. I don't understand why. In my eyes this issue should have priority over lots of others which were kept for the 4.3 release.

[sebastian.s]

Here are the related issues. Please comment and vote.

This is the issue aiming to extend the API:
https://jira.jboss.org/jira/browse/JBPM-2398

This issue gives an overview about history-related issues:
https://jira.jboss.org/jira/browse/JBPM-2568

[kukeltje]

I agree, but unfortunately I can only try to influence the core devs since I do not have the time to do this myself. Gathering as many votes as possible is the best to do (or getting paid support and escalate). I'll see what I can do

[sebastian.s]

Hey Ronald,

thanks for your support. Of course I understand that you don't have the time and that it's not your task to take care of it. I just asked because I thought you had a clue. I was especially irritated because I thought there was consensus on the history related issues being addresed in 4.3.

I'll try to get answers from Joram and Tom.

Sebastian

[sebastian.s]

rmoskal, have you voted on the issue?

[kukeltje]

Also vote for the individual issues if you think it is applicable.