Java Reflection Method Setter Get getSetterMethod(Class classType, String fieldName, Class paramType)

Description

Retrieves setter method of a field.

License

Apache License

Parameter

Parameter	Description
classType	class type
fieldName	field name
paramType	return type

Exception

Parameter	Description
NoSuchMethodException	thrown if method is not found

Return

Method setter method of field

Declaration

public static Method getSetterMethod(Class<?> classType, String fieldName, Class<?> paramType)
        throws NoSuchMethodException 

Method Source Code

//package com.java2s;
/** /*from   w ww . j a  va 2s  .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 {
    /**
     * Retrieves setter method of a field.
     * 
     * @param classType      class type
     * @param fieldName      field name
     * @param paramType      return type
     * @return Method      setter method of field
     * @throws NoSuchMethodException thrown if method is not found
     */
    public static Method getSetterMethod(Class<?> classType, String fieldName, Class<?> paramType)
            throws NoSuchMethodException {

        String methodName = "set" + fieldName.substring(0, 1).toUpperCase() + fieldName.substring(1);
        Method m = null;
        NoSuchMethodException firstException = null;

        while (paramType != null && m == null) {
            try {
                m = classType.getDeclaredMethod(methodName, paramType);
            } catch (NoSuchMethodException e) {
                if (firstException == null) {
                    firstException = e;
                }
                for (Class<?> interfaceClass : paramType.getInterfaces()) {
                    try {
                        m = classType.getDeclaredMethod(methodName, interfaceClass);
                    } catch (NoSuchMethodException e1) {

                    }
                }
                paramType = paramType.getSuperclass();
            }

        }

        if (m == null && firstException != null) {
            throw firstException;
        }

        return m;
    }
}

Related

1. getSetterMethod(Class beanClass, String fieldName, List supportedTypes)
2. getSetterMethod(Class c, String methodName)
3. getSetterMethod(Class containingClass, Class propertyType, String propertyName)
4. getSetterMethod(Class type, String property)
5. getSetterMethod(Class beanClass, String property)
6. getSetterMethod(Class clazz, Field field)
7. getSetterMethod(Class clazz, String name)
8. getSetterMethod(Class cls, String property, Class valueCls)
9. getSetterMethod(final Class clazz, final Class annotation, final String name, final String value)