Java Reflection Annotation getAnnotation(Object obj, Class annotation)

License

Declaration

public static <A extends Annotation> A getAnnotation(Object obj, Class<A> annotation) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import java.lang.annotation.Annotation;

import java.lang.reflect.Field;

import java.util.Objects;

public class Main {
    public static <A extends Annotation> A getAnnotation(Object obj, Class<A> annotation) {
        Objects.requireNonNull(obj);

        return obj.getClass().getDeclaredAnnotation(annotation);
    }/*from  ww  w .  java 2  s .c  o  m*/

    public static <A extends Annotation> A getAnnotation(Class<?> clazz, Class<A> annotation) {
        Objects.requireNonNull(clazz);
        Objects.requireNonNull(annotation);

        return clazz.getDeclaredAnnotation(annotation);
    }

    public static <A extends Annotation> A getAnnotation(Field field, Class<A> annotation) {
        Objects.requireNonNull(field);
        Objects.requireNonNull(annotation);

        return field.getDeclaredAnnotation(annotation);
    }
}

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