Java Reflection Method Setter Get getSetter(Method m)

Description

get Setter

License

Apache License

Declaration

private static Method getSetter(Method m) 

Method Source Code

//package com.java2s;
/**//from   w w  w .j a va2  s.c o  m
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you 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 {
    private static Method getSetter(Method m) {
        final int index = getterIndex(m.getName());
        if (index != -1) {
            String setterName = "set" + m.getName().substring(index);
            Class<?> paramTypes = m.getReturnType();
            return getDeclaredMethod(m.getDeclaringClass(), setterName, paramTypes);
        }
        return null;
    }

    private static int getterIndex(String methodName) {
        if (methodName.startsWith("is")) {
            return 2;
        }
        if (methodName.startsWith("get")) {
            return 3;
        }
        return -1;
    }

    private static Method getDeclaredMethod(Class<?> cls, String methodName, Class<?>... paramTypes) {
        try {
            return cls.getDeclaredMethod(methodName, paramTypes);
        } catch (Exception e) {
            return null;
        }
    }
}

Related

1. getSetter(Class cls, final String fieldName)
2. getSetter(final Class targetClass, final String propertyName)
3. getSetter(final Class clazz, final String fieldName, final Class... fieldClass)
4. getSetter(final Class clz, final String propertyName, final Class propertyClass)
5. getSetter(final Object o, final String fieldName)
6. getSetter(Object instance, String methodName)
7. getSetter(Object object, String name, Class type)
8. getSetter(Object target, String property, Class parameterType)
9. getSetter(String fieldName, Class clazz, Class fieldType)