Similar to projects like Lombok since version 2.7.1 QueryDSL has support for Java annotation processors discovery: https://github.com/querydsl/querydsl/issues/180. It means that we don't have to configure code generation manually, javac will pick up annotation processor automagically.
GradleGradle setup is really easy. You can start with example project created by me: https://github.com/bsideup/querydsl-gradle-idea/tree/10ffd70805e3a7951d4614ff4f7e27102fdad343
build.gradle is simple:
We're declaring dependency on querydsl-apt:3.6.3 with jpa classifier. It contains Java Annotation Processor for JPA annotations like @Entity. If you already have a project with QueryDSL and just want to improve your Gradle build - just remove everything related to QueryDSL code generation and just add this dependency.
Now you can build your project:
$ ./gradlew build :compileJava Note: Running JPAAnnotationProcessor Note: Serializing Entity types Note: Generating ru.trylogic.querydsl.example.QUser for [ru.trylogic.querydsl.example.User] Note: Running JPAAnnotationProcessor Note: Running JPAAnnotationProcessor :processResources :classes :jar :assemble :compileTestJava UP-TO-DATE :processTestResources UP-TO-DATE :testClasses UP-TO-DATE :test UP-TO-DATE :check UP-TO-DATE :build BUILD SUCCESSFUL Total time: 2.768 secs
There are notes about annotation processing from JPAAnnotationProcessor. It means that everything works as expected and code was generated. Easy, huh?
IntelliJ IDEABut we don't want to build our project with Gradle during development, we want to use build from IDEA! First, change your build.gradle file:
Now open project in IDEA (if you didn't import project yet you can easily open build.gradle file in IDEA, it will propose you to import it). For some reasons IDEA will not enable annotation processing by default when you import your Gradle project, so you need to enable it.
- Go to Preferences -> Build, Execution, Deployment -> Annotation Processors;
- Check Enable annotation processing checkbox;
- In "Store generated sources relative to:" select Module content root.
As always, full sources can be found here: http://github.com/bsideup/querydsl-gradle-idea/