topic Re: Only one service task is executed in Alfresco Forum

Only one service task is executed

gopi_chitturi — Mon, 10 Dec 2018 23:48:02 GMT

Hi,I have created a process that has multiple service tasks in a sequence. When I start the process, first and 2nd tasks are executed however, the rest of them are not executed. I thought this is a simple flow but couldn't figure out what is blocking some of the tasks. Here is my process. Anything w

Re: Only one service task is executed

gopi_chitturi — Tue, 11 Dec 2018 00:48:20 GMT

Figured out the issue. There is no problem with Process Definition. My Implementation classes were implementing the ActivityBehavior interface instead of JavaDelegate interface. Only the first task is implementing the JavaDelegate.

Whichever has implementation for JavaDelegate interface, ran successfully and which has ActivityBehavior implementation did not run.

After changing everything to JavaDelegate implementation, everything is working fine.

What is the difference between them and can't we use interchangeably?

Re: Only one service task is executed

pault — Tue, 11 Dec 2018 08:34:37 GMT

This is from the user guide, sounds like they are quite different.

[INTERNAL: non-public implementation classes] It is also possible to provide a class that implements the org.activiti.engine.impl.pvm.delegate.ActivityBehavior interface. Implementations have then access to the more powerful ActivityExecution that for example also allows to influence the control flow of the process. Note however that this is not a very good practice, and should be avoided as much as possible. So, it is advised to use the ActivityBehavior interface only for advanced use cases and if you know exactly what you’re doing.

Re: Only one service task is executed

gopi_chitturi — Wed, 12 Dec 2018 18:38:45 GMT

Thanks PaulT _‌