Java Reflection Annotation getAnnotationForMethodOrContainingClass(Method m, Class annotationType)

Description

Look for a specified annotation on a method.

License

Apache License

Parameter

Parameter	Description
m	method to examine
annotationType	the annotation type to look for.

Declaration

public static <T extends Annotation> T getAnnotationForMethodOrContainingClass(Method m,
        Class<T> annotationType) 

Method Source Code

//package com.java2s;
/**//www . j a v  a2  s  .com
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you 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.Method;

public class Main {
    /**
     * Look for a specified annotation on a method. If there, return it. If not, search it's containing class.
     * Assume that the annotation is marked @Inherited.
     * 
     * @param m method to examine
     * @param annotationType the annotation type to look for.
     */
    public static <T extends Annotation> T getAnnotationForMethodOrContainingClass(Method m,
            Class<T> annotationType) {
        T annotation = m.getAnnotation(annotationType);
        if (annotation != null) {
            return annotation;
        }
        return m.getDeclaringClass().getAnnotation(annotationType);
    }
}

Related

1. getAnnotationDefaultMap(Class annotationClass)
2. getAnnotationElementValue(AnnotatedElement annotatedElement, String annotationClassName, String annotationElementName, Class annotationElementType)
3. getAnnotationField(Annotation annotation, String field)
4. getAnnotationFields(Class claz, Class annotationType)
5. getAnnotationFields(Class clazz, Class annotationClass)
6. getAnnotationForProperty(Class cls, String name, Class anno)
7. getAnnotationFromAnnotation(Annotation annotation, Class annotationClass)
8. getAnnotationFromEntityFields(Class entity, Class annotation)
9. getAnnotationFromEntityOrInterface( Class annotationType, Class entity)