Java Reflection Method Annotation getMethodByAnnotation(Class cls, Class annotationClass)

Description

get Method By Annotation

License

Open Source License

Declaration

public static List<Method> getMethodByAnnotation(Class<?> cls, Class<? extends Annotation> annotationClass) 

Method Source Code

//package com.java2s;
/**// ww  w. ja va  2s.co  m
 * MIT License
 * 
 * Copyright (c) 2017 CaiDongyu
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

import java.lang.annotation.Annotation;

import java.lang.reflect.Method;
import java.util.ArrayList;

import java.util.List;

public class Main {
    public static List<Method> getMethodByAnnotation(Class<?> cls, Class<? extends Annotation> annotationClass) {
        List<Method> result = new ArrayList<Method>();
        Method[] methods = cls.getDeclaredMethods();
        for (Method method : methods) {
            if (method.isAnnotationPresent(annotationClass)) {
                result.add(method);
            }
        }
        Class<?> superClass = cls.getSuperclass();
        if (superClass != null) {
            result.addAll(getMethodByAnnotation(superClass, annotationClass));
        }
        return result;
    }
}

Related

1. getMethodAnnotation(Method method, Class annotation)
2. getMethodAnnotation(Method method, Class annotationType)
3. getMethodAnnotation(Method method, Class clazz)
4. getMethodAnnotationMap(Method method, Collection> annotationClasses)
5. getMethodAnnotations(Method m)
6. getMethodContainsAnnotations(Class target, Class annotation)
7. getMethodInClassWithAnnotation(Class cls, Class annotationClass, int... modifiers)
8. getMethodLevelAnnotations(Class clazz, Class annotation)
9. getMethodName(final Class annoType, final Class klazType)