Check to see if annotation is present on a given Class, take into account class hierarchy. - Java java.lang.annotation

Java examples for java.lang.annotation:Class Annotation

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Description

Check to see if annotation is present on a given Class, take into account class hierarchy.

Demo Code

/*//from   w  w  w .  j a  v a 2s  .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(isAnnotationPresent(klass, annotationType));
    }

    /**
     * Check to see if annotation is present on a given Class, take into account class hierarchy.
     *
     * @param klass          Class
     * @param annotationType Annotation
     * @return true/false depending on if annotation is present
     */
    public static boolean isAnnotationPresent(Class<?> klass,
            Class<? extends Annotation> annotationType) {
        return org.springframework.core.annotation.AnnotationUtils
                .findAnnotation(klass, annotationType) != null;
    }

    /**
     * Check to see if annotation is present on a given Method, take into account class hierarchy.
     *
     * @param method         Method
     * @param annotationType Annotation
     * @return true/false depending on if annotation is present
     */
    public static boolean isAnnotationPresent(Method method,
            Class<? extends Annotation> annotationType) {
        return org.springframework.core.annotation.AnnotationUtils
                .findAnnotation(method, annotationType) != null;
    }
}

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