get Annotated Methods - Java java.lang.annotation

Java examples for java.lang.annotation:Method Annotation

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Description

get Annotated Methods

Demo Code

/* Copyright (c) 2011 Danish Maritime Authority.
 *
 * 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./*  w  w  w .  j  av a2 s  .  c o  m*/
 */
//package com.java2s;
import java.lang.annotation.Annotation;

import java.lang.reflect.Method;
import java.util.HashMap;
import java.util.Map;

public class Main {

    public static <T extends Annotation> Map<Method, T> getAnnotatedMethods(
            Class<?> type, Class<T> annotation) {
        final Map<Method, T> methods = new HashMap<>();
        while (type != Object.class) {
            for (Method method : type.getDeclaredMethods()) {
                if (method.isAnnotationPresent(annotation)) {
                    methods.put(method, method.getAnnotation(annotation));
                }
            }
            type = type.getSuperclass();
        }
        return methods;
    }
}

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