eclipseLink in customModule

[francogar82]

Hi all,

I have created the custom module in order to wirte a log into db table.

Generally I use the eclipselink to manage persistence (jpa), but I'm not able to use eclipselink in custom module, After the call method: Persistence.createEntityManagerFactory(<myPersistenceUnit>), the program seems blocked and the EntityManager object is null.

Please, Could you help me to resolve this incident?

Thanks a lot in advance

[pjhavariotis]

First of all you have to know that EclipseLink is not supported by Red Hat.

Which version of EAP do you use?

[francogar82]

Hi, My EAP version is 6.4.0 GA

[pjhavariotis]

Can you share the module.xml and the persistence.xml?

[francogar82]

Yes module.xml:

<module xmlns="urn:jboss:module:1.1" name="it.xxx.xxx.customLogHandler">

    <resources>

        <resource-root path="customLogHandler.jar"/>

        <!-- Insert resources here -->

    </resources>

  <dependencies>

     <module name="javax.api"/>

    <module name="javax.transaction.api"/>

    <module name="org.eclipse.persistence" export="true"/>

    <module name="javax.persistence.api"/>

    <module name="org.jboss.logging"/>

   </dependencies>

</module>

persistence.xml

<?xml version="1.0" encoding="UTF-8"?>

<persistence version="2.0"

  xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

  xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">

  <persistence-unit name="MyUnit" transaction-type="JTA">

  <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>

  <class>it.xxx.xxx.loggerhelper.customLogHandler.entity.MyEntity</class>

  <properties>

<property name="javax.persistence.jdbc.url" value="jdbc:mysql://localhost:3306/mydb" />

  <property name="eclipselink.target-server" value="JBoss" />

  <property name="eclipselink.target-database" value="MySQL"/>

  <property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver"/>

  </properties>

  </persistence-unit>

</persistence>

[andey]

Hi,

EclipseLink is not shipped or supported by Red Hat. Red Hat will only give a commercially reasonable effort to help on queries regarding Eclipselink.

To integrate Eclipselink in EAP 6

1# Create appropriate directory $JBOSS_HOME/modules/system/layers/base/org/eclipse/persistence/main.

2# Add EclipseLink JAR into it and create $JBOSS_HOME/modules/system/layers/base/org/eclipse/persistence/main/module.xml with following content.

~~~

<?xml version="1.0" encoding="UTF-8"?> 

<module xmlns="urn:jboss:module:1.1" name="org.eclipse.persistence"> 

    <resources>

              <resource-root path="eclipselink.jar"/>  <!-- Point to correct jar version added in module -->

    </resources> 

    <dependencies> 

        <module name="asm.asm"/> 

        <module name="javax.api"/> 

        <module name="javax.persistence.api"/> 

        <module name="javax.transaction.api"/> 

        <module name="javax.validation.api"/> 

        <module name="javax.xml.bind.api"/> 

        <module name="org.antlr"/> 

        <module name="org.apache.commons.collections"/> 

        <module name="org.dom4j"/> 

        <module name="org.javassist"/> 

        <module name="org.jboss.logging"/> 

    </dependencies> 

</module>

~~~

3# Remove any Hibernate specific properties and add following provider and property in persistence.xml.

~~~

<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>

...

<properties>

    ...

    <property name="eclipselink.target-server" value="JBoss"/>

    ...

</properties>

~~~

4#Start EAP server to deploy application. Server logs should show successful module dependecy binding to the application, provided DEBUG level logs are enabled for org.jboss.as.jpa.

~~~

13:59:43,477 DEBUG [org.jboss.as.jpa] (MSC service thread 1-1) added org.eclipse.persistence:main dependency to EclipselinkTest.jar

13:59:43,477 DEBUG [org.jboss.as.jpa] (MSC service thread 1-1) EmployeeService is configured to use persistence provider 'org.eclipse.persistence.jpa.PersistenceProvider', adding an optional dependency on module 'org.eclipse.persistence'

~~~

- To configure static weaving in Eclipselink

-----------------------------------------------------------

1#Set up depends on build system.

2#For Ant, EclipseLink provides an Ant task; the class name is org.eclipse.persistence.tools.weaving.jpa.StaticWeaveAntTask.

3#For Maven, a plugin to enable "static weaving" is available, although it is not part of the EclipseLink project.

~~~

<plugin> 

    <groupId>au.com.alderaan</groupId> 

    <artifactId>eclipselink-staticweave-maven-plugin</artifactId> 

    <version>1.0.3</version> 

    <executions> 

        <execution> 

            <phase>process-classes</phase> 

            <goals> 

                <goal>weave</goal> 

            </goals> 

            <configuration> 

                <logLevel>ALL</logLevel> 

            </configuration>

        </execution> 

    </executions> 

    <dependencies> 

        <dependency> 

            <groupId>org.eclipse.persistence</groupId> 

            <artifactId>eclipselink</artifactId> 

            <version>${version.eclipselink}</version> 

        </dependency> 

    </dependencies> 

</plugin> 

<repository> 

    <id>EclipseLink</id> 

    <url>http://www.eclipse.org/downloads/download.php?r=1&nf=1&file=/rt/eclipselink/maven.repo</url> 

</repository> 

<dependency> 

    <groupId>org.eclipse.persistence</groupId> 

    <artifactId>eclipselink</artifactId> 

    <version>${version.eclipselink}</version> 

    <scope>provided</scope> 

</dependency>

~~~

*Note: The "repository" is not necessary if EclipseLink version is 2.5.0 or later, as those releases are available in Maven Central.

4#Add the following property to persistence.xml.

~~~

<property name="eclipselink.weaving" value="static"/>

~~~

To make lazy loading working:

---------------------------------------

1#Create custom module org.eclipse.persistence as mentioned in "To integrate Eclipselink in EAP 6" section.

2#Use the correct provider in persistence.xml

~~~

<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>

~~~

And remove this property from persistence.xml if present.

~~~

<property name="jboss.as.jpa.providerModule" value="aaa.bbb.eclipselink" /> <!-- value is custom module name that you might have -->

~~~

3#Remove these system properties from standalone.xml if present.

~~~

<property name="eclipselink.target-server" value="JBoss"/>

<property name="eclipselink.archive.factory" value="CLASS.NAME.OF.YOUR.COPY.OF.JBossArchiveFactoryImpl"/>

<property name="eclipselink.logging.logger" value="CLASS.NAME.OF.YOUR.COPY.OF.JBossLogger"/>

~~~

4#Configure the static weaving as mentioned in "To configure static weaving in Eclipselink" section.

For more details See below link:

How to use EclipseLink with AS7

Regards,
Anup