Java Reflection Annotation Find findAnnotation(Class clazz, Class annotationClass)

Description

find Annotation

License

Open Source License

Declaration

public static <T extends Annotation> T findAnnotation(Class<?> clazz, Class<T> annotationClass) 

Method Source Code

//package com.java2s;
// The MIT License (MIT)

import java.lang.annotation.Annotation;

public class Main {
    public static <T extends Annotation> T findAnnotation(Class<?> clazz, Class<T> annotationClass) {
        while (clazz != null) {
            T t = clazz.getAnnotation(annotationClass);
            if (t != null) {
                return t;
            }//from ww  w .  j  a v  a2 s  .co m
            for (Class<?> interfaceClass : clazz.getInterfaces()) {
                t = interfaceClass.getAnnotation(annotationClass);
                if (t != null) {
                    return t;
                }
            }
            clazz = clazz.getSuperclass();
        }
        return null;
    }
}

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