Datanucleus 2 / JPA2 setup

[Marcel Overdijk]

Has somebody already setup the GAE Maven Plugin with Datanucleus 2 / JPA2?

[Marcel Overdijk]

bump, anyone?

[tuc...@yasenevo.ru]

I tried, but i got OMFException during EMF initialization. No idea what should I make

On Tuesday, May 29, 2012 3:18:57 PM UTC+2, Marcel Overdijk wrote:

[babajide...@gmail.com]

Yes I managed to get JPA 2 wroking with Maven,

Here is my pom:

<properties>

<!-- Convenience property to set the GWT version -->

<gwtVersion>2.5.0</gwtVersion>

<gxtVersion>2.2.0</gxtVersion>

<gae.version>1.7.5</gae.version>

<datanucleus.version>3.1.3</datanucleus.version>

<!-- GWT needs at least java 1.5 -->

<webappDirectory>${project.build.directory}/${project.build.finalName}</webappDirectory>

<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

</properties>

<!-- DN -->

<dependency>

<groupId>com.google.appengine.orm</groupId>

<artifactId>datanucleus-appengine</artifactId>

<version>2.1.2</version>

</dependency>

<dependency>

<groupId>org.datanucleus</groupId>

<artifactId>datanucleus-core</artifactId>

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

<scope>runtime</scope>

</dependency>

<dependency>

<groupId>org.datanucleus</groupId>

<artifactId>datanucleus-api-jpa</artifactId>

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

</dependency>

<dependency>

<groupId>org.datanucleus</groupId>

<artifactId>datanucleus-api-jdo</artifactId>

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

</dependency>

<dependency>

<groupId>javax.jdo</groupId>

<artifactId>jdo-api</artifactId>

<version>3.0.1 </version>

</dependency>

<dependency>

<groupId>org.apache.geronimo.specs</groupId>

<artifactId>geronimo-jpa_2.0_spec</artifactId>

<version>1.0</version>

</dependency>

<dependency>

 <groupId>com.google.appengine</groupId>

 <artifactId>appengine-jsr107cache</artifactId>

 <version>1.7.5</version>

</dependency>

<dependency>

 <groupId>com.google.appengine</groupId>

 <artifactId>appengine-endpoints</artifactId>

 <version>1.7.5</version>

</dependency>

<dependency>

 <groupId>net.sf.jsr107cache</groupId>

 <artifactId>jsr107cache</artifactId>

 <version>1.1</version>

</dependency>

<!--For the Enhancer Include under plugins-->

<plugin>

<groupId>org.datanucleus</groupId>

<artifactId>maven-datanucleus-plugin</artifactId>

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

<configuration>

<api>JPA</api>

<verbose>true</verbose>

<mappingIncludes>**/entity/*.class</mappingIncludes>

<fork>false</fork>

<log4jConfiguration>${basedir}/log4j.properties</log4jConfiguration>

</configuration>

<executions>

<execution>

<phase>process-classes</phase>

<goals>

<goal>enhance</goal>

</goals>

</execution>

</executions>

</plugin>

Good luck and remember to read  here https://developers.google.com/appengine/docs/java/datastore/jpa/overview-dn2 on what JPA2 features is supported 

You will also find http://www.datanucleus.org/products/accessplatform/jpa/orm/inheritance.html useful.

Remember to include persistence.xml in root of application, in this case src/main/resources

Cheers

Babajide Agbebiyi