dimanche 20 août 2017

Redirect input from annotation [duplicate]

This question already has an answer here:

Is there a way that I can give an annotation an method as an input. Then use the value returned from it to pass to the annotation ?

public String fnc(String value){

   //do something
   return ret;
}

@Target(ElementType.METHOD)
@Retention(RetentionPolicy.RUNTIME)
@interface MAnon{
    String cond = fnc(cond);
}

@MAnon(fnc("Something")) //does not work
@MAnon("Something")
public void foo(){ ... }

public void bar(){
    //reflection call
   MAnon a = ...getDeclaredAnnotations()[0]
   String foo = a; //may not be the same as what is typed
}





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