topic Variable serialization & Class Loading in Alfresco Archive

Variable serialization & Class Loading

oefimov — Wed, 13 Aug 2014 08:04:43 GMT

AFAIK Activiti Engine offers class loading extension point by the following meanseveloper can provide custom class loader by setting classLoader‍ property of org.activiti.engine.ProcessEngineConfiguration‍;Custom class loader may refer to the org.activiti.engine.impl.context.Context.getExecutionCo

Re: Variable serialization & Class Loading

jbarrez — Tue, 19 Aug 2014 09:31:59 GMT

So you mean you want to have classloaders specifically for certain deployments?
The problem is that this information is not always available and sometimes will need to be fetched from the database, right?

Regarding your suggestions of code changes: it's easier to put these into pull requests where we can discuss them and incorporate them in the code if both parties agree. Would you be able to do that?

Re: Variable serialization & Class Loading

oefimov — Tue, 19 Aug 2014 15:08:39 GMT

Joram, yes, if variable is of per-deployment class then during its deserialization the quick way to learn its classloader is via serialized information.

Another solution is to set context above in the call stack, wrapping deserialization invocations (engine knows for which process>definition>deployment it is deserializing a variable), but it's hard for me to assess impact and feasibility of such solution.

I'll make a pull request for the first variant and post link to it here, okay?

Re: Variable serialization & Class Loading

oefimov — Wed, 20 Aug 2014 06:59:38 GMT

Hi Joram,

Please review the pull request I've created: https://github.com/Activiti/Activiti/pull/360

Re: Variable serialization & Class Loading

jbarrez — Sat, 30 Aug 2014 16:19:34 GMT

Certainly. We will reviewing pull requests shortly, it's very hectic currently (just before the Alfresco Summit it is always crazy)