[jboss-jira] [JBoss JIRA] (WFLY-8868) per application Expressions

[Brian Stansberry (JIRA)]

    [ https://issues.jboss.org/browse/WFLY-8868?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13415833#comment-13415833 ] 

Brian Stansberry commented on WFLY-8868:
----------------------------------------

Another thing to be aware of is the Microprofile Config API and an impl of that that [~jmesnil] developed for use in WildFly-based servers (particularly WildFly Swarm):

https://github.com/wildfly-extras/wildfly-microprofile-config

That proposed standard is about another way of making configuration variables available to applications. I'm not sure how what's been done there would intersect with this.

> per application Expressions
> ---------------------------
>
>                 Key: WFLY-8868
>                 URL: https://issues.jboss.org/browse/WFLY-8868
>             Project: WildFly
>          Issue Type: Feature Request
>          Components: EE
>            Reporter: Juergen Weber
>
> Wildfly supports Expression Substitution in descriptors [1]. These expressions are server global.
> This should be enhanced to support application scoped expressions:
> ${this:aProperty}
> It would be especially useful for Message Driven Beans, as an ActivationConfigProperty can only be set in a descriptor or via an annotation, but not in application code, so ActivationConfigProperties are effectively fixed.
> Then you could deploy the same Message Driven Bean multiple times with a different name:
> myMDB1.ear
> myMDB2.ear
> having 
> <activation-config-property-value>${this:queuename}</activation-config-property-value>
> and define
> <application-properties>
> <application name="myMDB_DEV_QUEUE_1.ear">
>  <property name="queuename" value="DEV_QUEUE_1"/> 
> </application>
> <application name="myMDB_DEV_QUEUE_2.ear">
>  <property name="queuename" value="DEV_QUEUE_2"/> 
> </application>
> </application-properties>
> whereas for production the queuename properties would be different.
> [1] https://docs.jboss.org/author/display/WFLY10/Expressions



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