topic Re: Integration of own activiti tasks with Spring in Alfresco Archive

Integration of own activiti tasks with Spring

mpriess — Wed, 13 Feb 2013 07:26:57 GMT

Hi,I like to extend activiti with a custom task which receive a message and forward this message to a JMX queue. After this step the task is going in a wait state and get a signal from another component if the work is done. So I developed a task with this behavior. Actually I have the problem that i

Re: Integration of own activiti tasks with Spring

tiesebarrell — Wed, 13 Feb 2013 19:43:15 GMT

Hi Michael,

the reason it's not injected is that the Spring injection is not used for activiti:class . That explains why setting it to delegateExpression manually resolves the problem. But I guess you figured that out already

It's pretty easy to make this available I suppose - there was simply never a request for it before. I would propose that instead of

@Runtime(delegationClass = "com.foo.activiti.task.ServiceTask")
we also allow

@Runtime(delegationExpression = "${myBeanExpression.method(execution)}")
This would then be generated as expected in the XML.

Slightly harder to figure out is what to do about injection of the other @Property fields of the extension class. But maybe that could be added later. Could you file a request for this in Jira and report back the number here so I can look into it?

Re: Integration of own activiti tasks with Spring

mpriess — Thu, 14 Feb 2013 08:42:06 GMT

Thanks, but which version support delegationExpression? If I add DelegateExpression to the Runtime annotation eclipse say this element is unknown.

Re: Integration of own activiti tasks with Spring

tiesebarrell — Thu, 14 Feb 2013 09:01:07 GMT

This attribute name is part of the extension you would create. We use "delegationClass", so using "delegationExpression" seems a logical name for the attribute we would add. The actual BPMN XML generated would have the "activiti:delegateExpression" attribute as defined here: http://activiti.org/userguide/index.html#bpmnJavaServiceTask

Re: Integration of own activiti tasks with Spring

mpriess — Thu, 14 Feb 2013 09:59:20 GMT

I understand how the xml generation works but Runtime actually doesn't support element delegationExpression.

https://github.com/Activiti/Activiti-Designer/blob/master/org.activiti.designer.integration/src/main/java/org/activiti/designer/integration/servicetask/annotation/Runtime.java

Re: Integration of own activiti tasks with Spring

tiesebarrell — Thu, 14 Feb 2013 11:57:21 GMT

Sorry, I don't think I made myself clear. We don't support it now, but I'm suggesting the feature be added. We need to build this. Can you create a Jira issue?

Re: Integration of own activiti tasks with Spring

mpriess — Thu, 14 Feb 2013 14:17:54 GMT

I created a task.

https://jira.codehaus.org/browse/ACT-1572

Re: Integration of own activiti tasks with Spring

tiesebarrell — Thu, 14 Feb 2013 15:18:50 GMT

Thanks.

Re: Integration of own activiti tasks with Spring

tiesebarrell — Sun, 03 Mar 2013 19:47:57 GMT

This has been added for the next release and documented in the userguide. I've resolved the issue in Jira.

Thanks Michael for the work on this.