topic EL: Invoking methods using parameters and el version clashes in Alfresco Archive

EL: Invoking methods using parameters and el version clashes

frederikherema1 — Fri, 01 Oct 2010 10:12:30 GMT

A very powerful feature of the EL 2.1.2 spec (part of Java EE6) is the possibility of invoking method calls with parameters. No doubt, this would be a great feature to have for developers to use in their process definitions. For example, take assignment listeners (soon to be implemented by Joram). I

Re: EL: Invoking methods using parameters and el version clashes

iravanchi — Thu, 07 Oct 2010 07:52:20 GMT

The way you mentioned seems easy to do, and it also solves one of my issues too - the JAR issue in Tomcat 6. (EL jar file needs to be replaced in Tomcat's lib in order for Activiti to work)

But how are you going to keep-up with the updates on JUEL? This way, you need to re-do the above importing-renaming thing every time a new JUEL comes out, or forget about the updates / bugfixes.

Re: EL: Invoking methods using parameters and el version clashes

frederikherema1 — Thu, 07 Oct 2010 08:14:18 GMT

Now we are using the source-code in JUEL 2.2.1 tag, which is exactly the same codebase as found in the official release of JUEL 2.2.1 found in maven. In case there is a new version of JUEL and we absolutely need it, the importing and refactoring should be performed again. This is indeed a bit more hassle than just updating the version in the pom, but it's a choice we are willing to take in order to get the parameterised method-expressions in.

Also, JUEL's codebase is very stable and is build upon EL-spec that won't likely change again in the next couple of years.

Re: EL: Invoking methods using parameters and el version clashes

iravanchi — Thu, 07 Oct 2010 08:21:20 GMT

It's totally convincing for me, specially the "JUEL being stable" point. Thanks for the reply.