Java Reflection Annotation getAnnotation(Class clazz, String fieldName, Class annotationClass)

Description

get Annotation

License

Apache License

Declaration

public static <T extends Annotation> T getAnnotation(Class<?> clazz, String fieldName,
            Class<T> annotationClass) 

Method Source Code

//package com.java2s;
/**/*  w  w w . j ava  2s.com*/
 * Copyright 2016 Nikita Koksharov
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.lang.annotation.Annotation;
import java.lang.reflect.Field;

public class Main {
    public static <T extends Annotation> T getAnnotation(Class<?> clazz, String fieldName,
            Class<T> annotationClass) {
        try {
            Field field = clazz.getDeclaredField(fieldName);
            if (!field.isAccessible()) {
                field.setAccessible(true);
            }
            return field.getAnnotation(annotationClass);
        } catch (NoSuchFieldException e) {
            return null;
        }
    }
}

Related

1. getAnnotation(Class clazz, Class annotationClass)
2. getAnnotation(Class clazz, Class annotationClass)
3. getAnnotation(Class clazz, Class annotationType)
4. getAnnotation(Class clazz, Class annotationType)
5. getAnnotation(Class clazz, Class annotationType)
6. getAnnotation(Class clazz, String name, Class[] types, Class annotationType)
7. getAnnotation(Class cls, Class annotationClass)
8. getAnnotation(Class cls, Class annotation)
9. getAnnotation(Class componentClass, Class annotationClass)