Sets a property on the bean using a setter method. - Java Reflection

Java examples for Reflection:Java Bean

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Description

Sets a property on the bean using a setter method.

Demo Code

/*******************************************************************************
 * Copyright (c)2013 Prometheus Consulting
 *
 * 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.//from   w w  w  .j  ava  2 s  .c  o  m
 *******************************************************************************/
//package com.java2s;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

public class Main {


    /**
     * Sets a property on the bean using a setter method.
     * 
     * @param target
     * @param name
     * @param value
     * @throws IllegalArgumentException
     * @throws IllegalAccessException
     * @throws InvocationTargetException
     */
    public static void setProperty(Object target, String name, Object value)
            throws IllegalArgumentException, IllegalAccessException,
            InvocationTargetException {
        String methodName = "set" + name;
        Class clazz = target.getClass();
        Method[] methods = clazz.getMethods();
        for (int i = 0; i < methods.length; i++) {
            if (methodName.equalsIgnoreCase(methods[i].getName())) {
                Class params[] = methods[i].getParameterTypes();
                if (params.length == 1
                        && params[0].equals(value.getClass())) {
                    // we have one parameter of the right class.
                    methods[i].invoke(target, new Object[] { value });
                    break;
                }
            }
        }
    }
}

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