Java Reflection Method Name getMethod(Class cl, String methodName, Class[] paramTypes)

Description

get Method

License

Apache License

Declaration

static private Method getMethod(Class cl, String methodName, Class[] paramTypes) 

Method Source Code

//package com.java2s;
/**/*from ww  w  .j a va2  s. co  m*/
 * 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;
import java.lang.reflect.Modifier;

public class Main {
    static private Method getMethod(Class cl, String methodName, Class[] paramTypes) {

        Method m = null;
        try {
            m = cl.getMethod(methodName, paramTypes);
        } catch (NoSuchMethodException ex) {
            return null;
        }

        Class dclass = m.getDeclaringClass();
        if (Modifier.isPublic(dclass.getModifiers())) {
            return m;
        }

        Class[] intf = dclass.getInterfaces();
        for (int i = 0; i < intf.length; i++) {
            m = getMethod(intf[i], methodName, paramTypes);
            if (m != null) {
                return m;
            }
        }
        Class c = dclass.getSuperclass();
        if (c != null) {
            m = getMethod(c, methodName, paramTypes);
            if (m != null) {
                return m;
            }
        }
        return null;
    }
}

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 clazz, String methodName)
5. getMethod(Class clazz, String methodName, Class argType)
6. getMethod(Class clazz, String methodName, Class[] classes)
7. getMethod(Class clazz, String methodName, Class[] params)