Invoking MetaModel generator
----------------------------
Key: OPENJPA-1622
URL: https://issues.apache.org/jira/browse/OPENJPA-1622
Project: OpenJPA
Issue Type: Improvement
Components: build / infrastructure, jpa, tooling
Affects Versions: 2.0.0, 2.0.1, 2.1.0
Reporter: Pinaki Poddar
Assignee: Pinaki Poddar
Fix For: 2.1.0
1. Use service discovery mechanism to invoke annotation processor for metamodel
generation
2. Provide a activation switch -Aopenjpa.generate=true such that the user must
enable the switch to generate these metamodel classes besides having
openjpa.jar in classpath.
Target usage patterns
A. Using command lines
$ javac -cp /path/to/openjpa.jar -Aopenjpa.generate=true src/org/acme/Foo.java
B. Using Eclipse IDE
In 'Configure Annotation Processor Dialog'
-- set openjpa.generate to 'true'
-- include openjpa jar in factory path
C. Using Ant
<javac .....
<classpath refid="openjpa.jar"/>
<compilerarg value="-Aopenjpa.generate=true"/>
</javac>
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