[jira] Created: (VELOCITY-637) JPA ResourceLoader

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JPA ResourceLoader
------------------

                 Key: VELOCITY-637
                 URL: https://issues.apache.org/jira/browse/VELOCITY-637
             Project: Velocity
          Issue Type: New Feature
            Reporter: David Pedowitz


Provide an JPA ResourceLoader, similar to the DataSource ResourceLoader but allowing for injection of an EntityManager(Factory) with configurable named queries.

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     [ https://issues.apache.org/jira/browse/VELOCITY-637?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

David Pedowitz updated VELOCITY-637:
------------------------------------

    Attachment: EntityManagerResourceLoader.java

Attaching prototype, i've tested this using a spring configuration like so:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
    xmlns:p="http://www.springframework.org/schema/p" xmlns:security="http://www.springframework.org/schema/security"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
                        http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
                        http://www.springframework.org/schema/tx
                        http://www.springframework.org/schema/tx/spring-tx-2.5.xsd
                        http://www.springframework.org/schema/context
                        http://www.springframework.org/schema/context/spring-context-2.5.xsd
                        http://www.springframework.org/schema/security
                        http://www.springframework.org/schema/security/spring-security-2.0.xsd">

... contents omitted ...

    <bean id="velocityEngine"
        class="org.springframework.ui.velocity.VelocityEngineFactoryBean">
        <property name="velocityPropertiesMap">
            <map>
                <entry key="resource.loader" value="em" />
                <entry key="em.resource.loader.instance" value-ref="entityManagerResourceLoader" />
                <entry key="em.resource.loader.resource.templateNamedQuery"
                    value="findEmailTemplateBodyByName" />
            </map>
        </property>
    </bean>

    <bean id="entityManagerResourceLoader"
        class="org.apache.velocity.runtime.resource.loader.EntityManagerResourceLoader"
        p:entityManagerFactory-ref="entityManagerFactory" />

</beans>

> JPA ResourceLoader
> ------------------
>
>                 Key: VELOCITY-637
>                 URL: https://issues.apache.org/jira/browse/VELOCITY-637
>             Project: Velocity
>          Issue Type: New Feature
>            Reporter: David Pedowitz
>         Attachments: EntityManagerResourceLoader.java
>
>
> Provide an JPA ResourceLoader, similar to the DataSource ResourceLoader but allowing for injection of an EntityManager(Factory) with configurable named queries.

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    [ https://issues.apache.org/jira/browse/VELOCITY-637?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12643122#action_12643122 ]

Will Glass-Husain commented on VELOCITY-637:
--------------------------------------------

David--

Thanks so much for sharing this!

Would you be interesting in posting in the Wiki under Contributed Code?    I think it's not likely to make it in the short term into the main trunk-- we're trying to keep unnecessary dependencies (like JPA) out of the code.  But it'd be great to share it with other users.

WILL

> JPA ResourceLoader
> ------------------
>
>                 Key: VELOCITY-637
>                 URL: https://issues.apache.org/jira/browse/VELOCITY-637
>             Project: Velocity
>          Issue Type: New Feature
>            Reporter: David Pedowitz
>         Attachments: EntityManagerResourceLoader.java
>
>
> Provide an JPA ResourceLoader, similar to the DataSource ResourceLoader but allowing for injection of an EntityManager(Factory) with configurable named queries.

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    [ https://issues.apache.org/jira/browse/VELOCITY-637?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12643237#action_12643237 ]

David Pedowitz commented on VELOCITY-637:
-----------------------------------------

No problem!!  Thanks for the feedback.

> JPA ResourceLoader
> ------------------
>
>                 Key: VELOCITY-637
>                 URL: https://issues.apache.org/jira/browse/VELOCITY-637
>             Project: Velocity
>          Issue Type: New Feature
>            Reporter: David Pedowitz
>         Attachments: EntityManagerResourceLoader.java
>
>
> Provide an JPA ResourceLoader, similar to the DataSource ResourceLoader but allowing for injection of an EntityManager(Factory) with configurable named queries.

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    [ https://issues.apache.org/jira/browse/VELOCITY-637?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12643243#action_12643243 ]

David Pedowitz commented on VELOCITY-637:
-----------------------------------------

Wiki page posted http://wiki.apache.org/velocity/JpaResourceLoader

Thanks again!

> JPA ResourceLoader
> ------------------
>
>                 Key: VELOCITY-637
>                 URL: https://issues.apache.org/jira/browse/VELOCITY-637
>             Project: Velocity
>          Issue Type: New Feature
>            Reporter: David Pedowitz
>         Attachments: EntityManagerResourceLoader.java
>
>
> Provide an JPA ResourceLoader, similar to the DataSource ResourceLoader but allowing for injection of an EntityManager(Factory) with configurable named queries.

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     [ https://issues.apache.org/jira/browse/VELOCITY-637?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Will Glass-Husain closed VELOCITY-637.
--------------------------------------

    Resolution: Won't Fix

Thanks for sharing this code.  Closing JIRA issue.

> JPA ResourceLoader
> ------------------
>
>                 Key: VELOCITY-637
>                 URL: https://issues.apache.org/jira/browse/VELOCITY-637
>             Project: Velocity
>          Issue Type: New Feature
>            Reporter: David Pedowitz
>         Attachments: EntityManagerResourceLoader.java
>
>
> Provide an JPA ResourceLoader, similar to the DataSource ResourceLoader but allowing for injection of an EntityManager(Factory) with configurable named queries.

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