Gets annotation on a given Class, takes into account class hierarchy. - Java java.lang.annotation

Java examples for java.lang.annotation:Class Annotation

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Description

Gets annotation on a given Class, takes into account class hierarchy.

Demo Code

/*// ww w .j  a  v  a  2  s .  c  o m
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//package com.java2s;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;

public class Main {
    public static void main(String[] argv) throws Exception {
        Class klass = String.class;
        Class annotationType = String.class;
        System.out.println(getAnnotation(klass, annotationType));
    }

    /**
     * Gets annotation on a given Class, takes into account class hierarchy.
     *
     * @param klass          Class
     * @param annotationType Annotation
     * @return Annotation instance on Class
     */
    public static <A extends Annotation> A getAnnotation(Class<?> klass,
            Class<A> annotationType) {
        return org.springframework.core.annotation.AnnotationUtils
                .findAnnotation(klass, annotationType);
    }

    /**
     * Gets annotation on a given Method, takes into account class hierarchy.
     *
     * @param method         Method
     * @param annotationType Annotation
     * @return Annotation instance on Method
     */
    public static <A extends Annotation> A getAnnotation(Method method,
            Class<A> annotationType) {
        return org.springframework.core.annotation.AnnotationUtils
                .findAnnotation(method, annotationType);
    }
}

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