[jboss-jira] [JBoss JIRA] (WFLY-2933) Can't use system properties to set persistence-unit element content in persistence.xml

[Scott Marlow (JIRA)]

    [ https://issues.jboss.org/browse/WFLY-2933?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12944663#comment-12944663 ] 

Scott Marlow commented on WFLY-2933:
------------------------------------

This is a good example of a question that could first be asked on https://community.jboss.org/en/wildfly before creating a bug report.  Fewer people see a bug report than a question in the forums.  Please post in the forum next time if its possible that your issue isn't actually a bug.  I'm sure that you were convinced that it was, so I'll stop rambling about the forums now.  :)

You didn't list the steps to recreate but I'm wondering if you knew to update spec-descriptor-property-replacement to true.  Probably not as I don't see that described in https://docs.jboss.org/author/display/WFLY8/Documentation.

Open your wildfly/standalone/configuration/standalone.xml (or whichever configuration your using) and change from:

{quote}
 <subsystem xmlns="urn:jboss:domain:ee:2.0">
            <spec-descriptor-property-replacement>false</spec-descriptor-property-replacement>
            <jboss-descriptor-property-replacement>true</jboss-descriptor-property-replacement>
{quote}

To:

{quote}
 <subsystem xmlns="urn:jboss:domain:ee:2.0">
            <spec-descriptor-property-replacement>true</spec-descriptor-property-replacement>
            <jboss-descriptor-property-replacement>true</jboss-descriptor-property-replacement>
{quote}

I suspect that will help.  Let us know.

Scott
                
> Can't use system properties to set persistence-unit element content in persistence.xml
> --------------------------------------------------------------------------------------
>
>                 Key: WFLY-2933
>                 URL: https://issues.jboss.org/browse/WFLY-2933
>             Project: WildFly
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: JPA / Hibernate
>    Affects Versions: 8.0.0.Final
>            Reporter: Grégory Bévan
>            Assignee: Scott Marlow
>             Fix For: 8.0.1.Final
>
>
> I want to set dinamically content of "jta-data-source" element in persistence.xml file by using system properties passed on command line.
> The following link shows it's possible for previous JBoss version : http://www.mastertheboss.com/jpa-configuration/how-to-use-an-env-variable-in-your-persistencexml
> I've tested on JBoss 7.1.0.Final and it works.
> It goes with the possibility to define expression in datasource subsystem as described in WFLY-2160

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