Java Field from Class setPrivateField(String fieldName, Class containingClass, Object target, Object value)

Description

set Private Field

License

CDDL license

Declaration

public static void setPrivateField(String fieldName,
            Class containingClass, Object target, Object value) 

Method Source Code

//package com.java2s;
/*/* www .j  av  a2s. c o  m*/
 * The contents of this file are subject to the terms
 * of the Common Development and Distribution License
 * (the License). You may not use this file except in
 * compliance with the License.
 * 
 * You can obtain a copy of the License at
 * https://javaserverfaces.dev.java.net/CDDL.html or
 * legal/CDDLv1.0.txt. 
 * See the License for the specific language governing
 * permission and limitations under the License.
 * 
 * When distributing Covered Code, include this CDDL
 * Header Notice in each file and include the License file
 * at legal/CDDLv1.0.txt.    
 * If applicable, add the following below the CDDL Header,
 * with the fields enclosed by brackets [] replaced by
 * your own identifying information:
 * "Portions Copyrighted [year] [name of copyright owner]"
 * 
 * [Name of File] [ver.__] [Date]
 * 
 * Copyright 2005 Sun Microsystems Inc. All Rights Reserved
 */

import java.lang.reflect.Field;

public class Main {
    public static void setPrivateField(String fieldName,
            Class containingClass, Object target, Object value) {
        try {
            Field field = containingClass.getDeclaredField(fieldName);
            field.setAccessible(true);
            field.set(target, value);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }
}

Related

1. getDeclaredFields(final Class clazz)
2. getField(Class type, String name)
3. getField(final Class javaClass, final String fieldName, final boolean shouldSetAccessible)
4. getJsonValueFieldName(String className)
5. getProperField(Class objectClass)