5 Replies Latest reply on Dec 26, 2016 4:29 AM by Anup Dey

    eclipseLink in customModule

    Francesco Gargiulo Newbie

      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

        • 1. Re: eclipseLink in customModule
          Panagiotis Chavariotis Novice

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

          Which version of EAP do you use?

          • 2. Re: eclipseLink in customModule
            Francesco Gargiulo Newbie

            Hi, My EAP version is 6.4.0 GA

            • 3. Re: eclipseLink in customModule
              Panagiotis Chavariotis Novice

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

              • 4. Re: eclipseLink in customModule
                Francesco Gargiulo Newbie

                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>

                • 5. Re: eclipseLink in customModule
                  Anup Dey Apprentice

                  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