Sample using QueryDSL APT processing in a Groovy and Maven project.
Foo is an @Entity. QFoo is a QueryDSL query object for Foo generated with APT (JSR-269).
The annotation processor used is declared in com.querydsl:querydsl-apt in META-INF/services/javax.annotation.processing.Processor.
QFoo is also referenced by FooRepository to prove that it's generated and compiled on the fly
and can be safely used in other classes, even within the same project and source directory.
Also as an example generatedSourcesDirectory is changed in groovy-eclipse-compiler configuration
to prove that plugin configuration is applied to the annotation processor as well.
Tested with:
$ mvn -version
Apache Maven 3.3.3 (7994120775791599e205a5524ec3e0dfe41d4a06; 2015-04-22T13:57:37+02:00)
Java version: 1.8.0_60, vendor: Oracle Corporation