get Parameter Annotation - Java java.lang.annotation

Java examples for java.lang.annotation:Annotation Parameter

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Description

get Parameter Annotation

Demo Code

/**//from www. j  a va  2 s.  com
 *
 *     Copyright (C) norad.fr
 *
 *     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.
 */
//package com.java2s;
import java.lang.annotation.Annotation;

import java.lang.reflect.Method;

public class Main {
    public static <T extends Annotation> T getParameterAnnotation(
            Method method, Class<T> annotationType, int position) {
        for (Annotation annotation : method.getParameterAnnotations()[position]) {
            if (annotation.annotationType()
                    .isAssignableFrom(annotationType)) {
                return (T) annotation;
            }
        }
        return null;
    }
}

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