Java Reflection Method Parameter getMethod(Class sourceClass, boolean isFindDeclaredMethod, boolean isUpwardFind, String methodName, Class... methodParameterTypes)

Description

get Method

License

Apache License

Declaration

public static Method getMethod(Class<?> sourceClass, boolean isFindDeclaredMethod, boolean isUpwardFind,
        String methodName, Class<?>... methodParameterTypes) 

Method Source Code

//package com.java2s;
/*/*www.jav a2 s .c  om*/
 * Copyright (C) 2013 Peng fei Pan <sky@xiaopan.me>
 *
 * 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 {
    public static final Class<?>[] EMPTY_PARAM_TYPES = new Class<?>[0];

    public static Method getMethod(Class<?> sourceClass, boolean isFindDeclaredMethod, boolean isUpwardFind,
            String methodName, Class<?>... methodParameterTypes) {
        Method method = null;
        try {
            method = isFindDeclaredMethod ? sourceClass.getDeclaredMethod(methodName, methodParameterTypes)
                    : sourceClass.getMethod(methodName, methodParameterTypes);
        } catch (NoSuchMethodException e1) {
            if (isUpwardFind) {
                Class<?> classs = sourceClass.getSuperclass();
                while (method == null && classs != null) {
                    try {
                        method = isFindDeclaredMethod ? classs.getDeclaredMethod(methodName, methodParameterTypes)
                                : classs.getMethod(methodName, methodParameterTypes);
                    } catch (NoSuchMethodException e11) {
                        classs = classs.getSuperclass();
                    }
                }
            }
        }
        return method;
    }

    public static Method getMethod(Class<?> sourceClass, String methodName, Class<?>... methodParameterTypes) {
        return getMethod(sourceClass, true, true, methodName, methodParameterTypes);
    }

    public static Method getMethod(Class<?> sourceClass, String methodName) {
        return getMethod(sourceClass, methodName, EMPTY_PARAM_TYPES);
    }
}

Related

1. getMethod(Class cls, String name, Class... parameterTypes)
2. getMethod(Class clz, String methodName, Class... parameterTypes)
3. getMethod(Class declaringClass, String name, Class... parameterTypes)
4. getMethod(Class declaringType, String methodName, Class... parameterTypes)
5. getMethod(Class instance, String method, Class... parameters)
6. getMethod(Class target, String methodName, Class... parameterTypes)
7. getMethod(Class type, String name, Class... parametersType)
8. getMethod(Class type, String name, Class... parameterTypes)
9. getMethod(Class type, String name, Class... parameterTypes)