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javaannotationsannotation-processing

Change annotation processor dynamically

Following sample is just to explain the my implementation, please have a look at and let me know if i can get any answers for this

I have created a annotation Dispenser 

@Target(ElementType.TYPE)
@Retention(RetentionPolicy.RUNTIME)
public @interface Dispenser {

}

I have two classes of type dispenser above

  1. Milk Dispenser --

  2. Drink Dispenser --

    @Dispenser
class MilkDispenser{

    public void releaseDrink()
}

@Dispenser
class DrinkDispenser{

    public void releaseDrink()
}

and i have a class DispenserProcessor extends AbstractProcessor

Everything looks fine until unless i found a better implmentation of DispenserProcessor from the client they have their own implementation I cannot copy their code so i need a way switch to that dispenserProcessor developed by the client instead of mine

Question, is there any way @MyDispenser can extend their @ClientDispenser

Solution

  • It seems like you would have to use annotation inheritance to support this, but annotation inheritance is not supported.

    More info here: Why is not possible to extend annotations in Java?