topic Re: Using GORM(Grails) instead of JPA... in Alfresco Archive

Using GORM(Grails) instead of JPA...

wolpert — Tue, 21 Jun 2011 17:01:54 GMT

Folks- I'd like to use GORM entities as process variables, much the same way you can use JPA variables now, while using the grails-activiti plugin. What would have to be written to make this possible? Can someone outline necessary steps? Thanks

Re: Using GORM(Grails) instead of JPA...

frederikherema1 — Wed, 22 Jun 2011 05:31:03 GMT

Have a look how the JPA-variables are hooked in. If you want to make custom variable, you should extend the VariableType and implement your own, storing the data you need in the available db-fields on the variable or in byte-array, exposed to you in the VariableType.

If you also need some kind of initialisation of a transaction/entitymanager of some kind, have a look at EntityManagerSession and EntityManagerSessionFactory. These participate in the command-context and allow the JPAVariables to get hold of the entitymanager in the current command-context to fetch the actual entity when the variable is loaded…

The type and factory can be plugged in, no need to alter any activiti-sourcecode.

Re: Using GORM(Grails) instead of JPA...

wolpert — Fri, 24 Jun 2011 16:46:53 GMT

Thanks for the info. I'll take a look and try to come up with a plan for the grails plugin.