Want to build your own metamodel in Eclipse?
Prerequisite: use EclipseLink
Add the following to your
pom.xml file:
<dependency>
<groupId>org.eclipse.persistence</groupId>
<artifactId>eclipselink</artifactId>
<version>2.5.1</version>
<scope>provided</scope>
</dependency>
First step: Modify your pom.xml file
The
pom.xml file has to be modified to include the following plugin:
<plugin>
<groupId>org.bsc.maven</groupId>
<artifactId>maven-processor-plugin</artifactId>
<version>2.2.4</version>
<executions>
<execution>
<id>process</id>
<goals>
<goal>process</goal>
</goals>
<phase>generate-sources</phase>
<configuration>
<processors>
<processor>org.eclipse.persistence.internal.jpa.modelgen.CanonicalModelProcessor</processor>
</processors>
<outputDirectory>${project.build.directory}/generated-sources/meta-model</outputDirectory>
</configuration>
</execution>
</executions>
<dependencies>
<dependency>
<groupId>org.eclipse.persistence</groupId>
<artifactId>org.eclipse.persistence.jpa.modelgen.processor</artifactId>
<version>2.6.1</version>
</dependency>
</dependencies>
</plugin>
Second step: add the Generated-sources folder
Then, open the project properties and move to
Java Build Path. In the "Source" tab, select "
Add folder" and then add "
target/generated-sources".
Build the project.
Third step: compile
Finally, again in project properties, select the
JPA menu, select
EclipseLink as a platform, allow
Discover annotated classes automatically, and then press Apply. From this point on, the
generated-sources folder should contain your compiled metamodel.