How create CDI interceptor as singleton?

Question

The code

@Interceptor(SomeInterceptor.class)
public class SomeClass {
    @Interceptor(OtherInterceptor.class)
    public Object method1 (Object param) {
        return param;
    }


    public Object method2 (Object param) {
        return param;
    }
}

The question 1

Are SomeInterceptor and OtherInterceptor created in each method call or not?

The question 2

Is it possible to "setup" Inteceptor class to make it singleton? E.g. SomeInterceptor and OtherInterceptor are created only once.

Answer 1

According to CDI specification there should be at most one interceptor per CDI bean it intercepts and its lifecycle is tied to the one of the bean.
So if your bean is @ApplicationScoped there will be only one 'singletone' interceptor.
Also there was this bug in Weld.