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https://issues.apache.org/jira/browse/ARIES-1355?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14638377#comment-14638377
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Christian Schneider commented on ARIES-1355:
--------------------------------------------
As far as I know configuration properties can only be used for bean property
values. I am not sure if there are plans to allow property values at other
places.
I would rather consider that a general issue for blueprint but I am not sure if
it is planned to allow properties in additional places.
Btw. in aries jpa 2 there is no jpa:unit element anymore. The persistence unit
name is set using an annotation only.
> 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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