Java Reflection Method Name getMethod(Class clazz, String methodName)

Description

get Method

License

Apache License

Declaration

static public Method getMethod(Class clazz, String methodName) 

Method Source Code

//package com.java2s;
/*//from   w ww. j  a  va 2  s  .c o  m
 * Copyright 2013 Lorenzo.
 *
 * 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.reflect.Method;

public class Main {
    static public Method getMethod(Class clazz, String methodName) {
        Method[] methods = clazz.getMethods();

        return findUniqueMethodByName(methods, methodName);
    }

    static private Method findUniqueMethodByName(Method[] methods, String methodName) {
        Method method = null;
        for (int i = 0; i < methods.length; i++) {
            if (methods[i].getName().equals(methodName)) {

                if (method != null) {
                    throw new RuntimeException("Existen dos o mas metodos llamados '" + methodName);
                }

                method = methods[i];
            }
        }

        return method;

    }
}

Related

1. getMethod(@Nonnull Class clazz, @Nonnull String methodName, @Nonnull Class... types)
2. getMethod(Class c, String methodName)
3. getMethod(Class c, String name)
4. getMethod(Class cl, String methodName, Class[] paramTypes)
5. getMethod(Class clazz, String methodName, Class argType)
6. getMethod(Class clazz, String methodName, Class[] classes)
7. getMethod(Class clazz, String methodName, Class[] params)
8. getMethod(Class clazz, String name)