topic Re: rollback question?? in Alfresco Archive

rollback question??

tanxu1213 — Mon, 17 Oct 2011 03:04:45 GMT

hi! I have a request like thisrocess define: start event->Task A->Task B->Task C->end eventI need to rollback to Task A when Task B completed. how to do this?thanks!!!

Re: rollback question??

tomcheng76 — Mon, 17 Oct 2011 08:03:56 GMT

if you do some manual db operation on task b, you have to rollback manually.

create a xor gateway between b and c, create a xor gateway in front of a

Start-X-A-B-X-C-End
      |__R__|

X-C , you can specify condition on the path (when should the gateway pass the execution to C)

Re: rollback question??

tanxu1213 — Thu, 20 Oct 2011 08:32:18 GMT

well,can i rollback task from B to A?

Re: rollback question??

tomcheng76 — Fri, 21 Oct 2011 02:37:14 GMT

You can, click the "rollback" line, in main config, you can type your condition.
for example you set a process variable name "rollback"

in the condition, you can type "${rollback}" without double quote, then the process engine will check if rollback is true in your execution, if that is true, it will forward the execute back to Task A.

For the "go" line, type ${!rollback}

in fact, it is not a rollback, it is a re-execution of task A. hope this help.

Re: rollback question??

tanxu1213 — Fri, 21 Oct 2011 06:17:13 GMT

You can, click the "rollback" line, in main config, you can type your condition.
for example you set a process variable name "rollback"

in the condition, you can type "${rollback}" without double quote, then the process engine will check if rollback is true in your execution, if that is true, it will forward the execute back to Task A.

For the "go" line, type ${!rollback}

in fact, it is not a rollback, it is a re-execution of task A. hope this help.

got it!!thanks a lot!!!