Java Reflection Annotation getAnnotationValue(Annotation annotation, String valueName)

Description

get Annotation Value

License

Apache License

Declaration

public static Object getAnnotationValue(Annotation annotation, String valueName) throws RuntimeException 

Method Source Code

//package com.java2s;
/*//from w  w w .  j  av  a2 s  .  co m
 * Copyright 2012-2014 the original author or authors.
 *
 * 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;

public class Main {
    public static Object getAnnotationValue(Annotation annotation, String valueName) throws RuntimeException {
        try {
            return annotation.annotationType().getMethod(valueName).invoke(annotation);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }
}

Related

1. getAnnotationsRecursive(Class clazz)
2. getAnnotationsRecursive(final Class type, final Class annotationType)
3. getAnnotationValue(@Nonnull Class cls, @Nonnull Class annotation, V def)
4. getAnnotationValue(Annotation annotation, String attributeName)
5. getAnnotationValue(Annotation annotation, String value, Class expectedType)
6. getAnnotationValue(Class anno, Field field, String paramName)
7. getAnnotationValue(final A annotation, final Function valueRetriever, final V defaultValue)
8. getAnnotationValue(Object aObj, String aValue)
9. getAnnotationValue(Object obj, Class annotation, String field)