i fixed it with
https://rmannibucau.wordpress.com/2013/01/24/enhancing-openjpa-classes-with-maven-maven-compiler-alternative/
<plugin>
<groupId>org.bsc.maven</groupId>
<artifactId>maven-processor-plugin</artifactId>
<version>2.1.0</version>
<executions>
<execution>
<id>process</id>
<goals>
<goal>process</goal>
</goals>
<phase>generate-sources</phase>
<configuration>
<compilerArguments>-Aopenjpa.source=8
-Aopenjpa.metamodel=true</compilerArguments>
<processors>
<processor>org.apache.openjpa.persistence.meta.AnnotationProcessor8</processor>
</processors>
<outputDirectory>target/generated-sources/metamodel</outputDirectory>
</configuration>
</execution>
</executions>
<!-- <dependencies> <dependency>
<groupId>org.apache.openjpa</groupId>
<artifactId>openjpa</artifactId>
<version>${openjpa.version}</version> </dependency>
</dependencies> -->
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<version>1.7</version>
<executions>
<execution>
<id>add-source</id>
<phase>generate-sources</phase>
<goals>
<goal>add-source</goal>
</goals>
<configuration>
<sources>
<source>target/generated-sources/metamodel</source>
</sources>
</configuration>
</execution>
</executions>
</plugin>
but if anyone knows a better way please let me know
On 21/07/2017 09:18, Matthew Broadhead wrote:
i want to try CriteriaBuilder for constructing queries.
i am sure i used to generate the canonical metamodel classes
automatically by adding a parameter to the persistence.xml but i
cannot find anything on the mailing list or in the docs. i have found
instructions for generating the classes on the command line
https://openjpa.apache.org/builds/2.4.2/apache-openjpa/docs/ch13s04.html
and some mentions of using maven on the mailing list. it seems a long
winded way of generating the model.
does anyone know how to get them generating automatically in the project?
