topic Passing work items between service tasks in Alfresco Archive

Passing work items between service tasks

gouthr — Thu, 25 Sep 2014 23:46:54 GMT

Hi,How does the Activiti engine pass the work items from one service task to the next? Let me explain with an exampleay, I have a service task which invokes a java class. The java class does some processing and generates some values (work items). Now I need to be able to pass these work items to t

Re: Passing work items between service tasks

gouthr — Thu, 25 Sep 2014 23:55:09 GMT

Similarly how do i read the input for the first service task? Currently I am running some sample JUNIT tests and I am hard-coding the input values. If I were to take the input from the user, how would I do it? Is it from a FormService?

Re: Passing work items between service tasks

gouthr — Fri, 26 Sep 2014 01:24:17 GMT

A follow up question. How can I use the default H2 database to (create a new table and )write and read new values from it? Any pointers to sample code or documentation would be great.

Re: Passing work items between service tasks

martin_grofcik — Fri, 26 Sep 2014 07:13:08 GMT

Hi Goutham

1. Your custom logic implements JavaDelegate interface. Use execution to set variables (local or global) in the process instance


public class SetLocalVariableTask implements JavaDelegate {

 public void execute(DelegateExecution execution) throws Exception {
   execution.setVariableLocal("testLocal", "test2");
    execution.setVariable("test", "test2");
  }

}

2. Read variable from execution.

3. Use DbSession or activiti queries.

Regards
Martin