java - How to use field injection with action composition? -

play 2.4 supports dependency injected controllers out of box. have used constructor injection provide dependencies controllers. however, when using action composition, fields marked @inject not injected.

is there way inject dependencies composite action?

example code controller:

public class application extends controller {     private domainservice ds;      @inject     public application(domainservice ds) {         this.ds = ds;     }      @security.authenticated(randomauthenticator.class)     public result index() {         return ok();     }  } 

example code composite action:

public class randomauthenticator extends security.authenticator {     @inject private randomservice rs; // field never injected      @override     public string getusername(context context) {         float randfloat = rs.nextfloat(); // error! rs null          if (randfloat > 0.1) {             return "foo";         }          return null;     } } 

instead of field injection try using class' constructor inject guice:

public class randomauthenticator extends security.authenticator {      private randomservice rs;         @inject     randomauthenticator(randomservice randomservice) {         this.rs = randomservice;     }      @override     public string getusername(context context) {         float randfloat = rs.nextfloat(); // error! rs null          if (randfloat > 0.1) {             return "foo";         }          return null;     } }