Task Multi-level Organization Assignment

[pinorom]

I am planning to implement a concept of "Organization Units" in Activiti which is currently present in Oracle BPM as demonstrated on the following link: (https://blogs.oracle.com/ateamsoab2b/entry/bpm_11g_dynamic_task_assignment).
What is the best way to extend Activiti to implement such a feature?

The simplest that I thought are the following:
1) Add a primary String attribute "orgUnit" in line with taskId and candidateGroup in Task object.
2) Modify the Task.xml to include additional filter if orgUnit is not null.

      <if test="orgUnit!= null">
          RES.ORG_UNIT_ like #{orgUnit}
      </if>
‍‍‍‍‍

3) Modify The TaskQueryAPI to add a method "public TaskQueryImpl taskAccessibleFromOrgUnit(String userOrgUnit);"

Please advice.

[pinorom]

  (RES.ORG_UNIT_ IS NULL
<if test="orgUnit!= null">
   or RES.ORG_UNIT_ like #{orgUnit}
  </if>


ps: How to edit post?

[jbarrez]

Can't you map this concept to the 'candidateGroup' concept in Activiti?

Modifying the table is something you could do, but always keep in mind that this might get tricky when upgrading Activiti later on.