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From: "Matt Pavlovich (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (ARIES-1355) blueprint-jpa does not interpolate
 configuration properties
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    [ https://issues.apache.org/jira/browse/ARIES-1355?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14638909#comment-14638909 ] 

Matt Pavlovich commented on ARIES-1355:
---------------------------------------

Christian-

Thanks for the quick response. The driving factor to allow for multiple persistence units is to readily support variances between DB vendors. Having it be configurable provides even greater flexibility (no need to have separate modules).

Off the top of my head, I don't see how an annotation would be able to support that scenario.

Are there other factors driving the move away from the blueprint-defined jpa:unit/context?  

I'm not tied to any particular solution, but having configurable PU's would be a very useful capability.

Thanks

> blueprint-jpa does not interpolate configuration properties
> -----------------------------------------------------------
>
>                 Key: ARIES-1355
>                 URL: https://issues.apache.org/jira/browse/ARIES-1355
>             Project: Aries
>          Issue Type: Bug
>          Components: Blueprint
>    Affects Versions: blueprint-cm-1.0.6
>            Reporter: Matt Pavlovich
>
> When attempting to wire in the persistent unit name from a cm property, aries jpa does not interpolate the value, and instead tries to lookup the ${name} literally.
> {noformat}
> <?xml version="1.0" encoding="UTF-8"?>
> <blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0"
> 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:camel="http://camel.apache.org/schema/blueprint"
> 	xmlns:cm="http://aries.apache.org/blueprint/xmlns/blueprint-cm/v1.0.0"
> 	xmlns:jpa="http://aries.apache.org/xmlns/jpa/v1.1.0" xmlns:tx="http://aries.apache.org/xmlns/transactions/v1.1.0"
> 	xsi:schemaLocation="
> 		http://www.osgi.org/xmlns/blueprint/v1.0.0 http://www.osgi.org/xmlns/blueprint/v1.0.0/blueprint.xsd">
> 	<cm:property-placeholder persistent-id="com.company.jpatest">
> 		<cm:default-properties>
> 			<cm:property name="persistentUnitName" value="my.pu" />
> 		</cm:default-properties>
> 	</cm:property-placeholder>
> 	<bean id="tracingStoreTx" class="com.company.StuffJPAImpl" destroy-method="destroy">
> 		<jpa:unit unitname="${persistentUnitName}" property="entityManagerFactory" />
>     </bean>
> ..
> {noformat}
> Log message
> {noformat}
> [(&(&(!(org.apache.aries.jpa.proxy.factory=*))(osgi.unit.name=${persistentUnitName}))(objectClass=javax.persistence.EntityManagerFactory)), (&(&(!(org.apache.aries.jpa.proxy.factory=*))(osgi.unit.name=${persistentUnitName}))(objectClass=javax.persistence.EntityManagerFactory))]
> java.util.concurrent.TimeoutException
> {noformat}



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