Java Reflection Field Value Set setFieldValue(Field field, Object object, Object value)

Description

set Field Value

License

Open Source License

Declaration

public static boolean setFieldValue(Field field, Object object, Object value) 

Method Source Code

//package com.java2s;
/*/*from   w  ww. j  a v  a 2 s.c  om*/
 * This file is part of MyPet
 *
 * Copyright ? 2011-2016 Keyle
 * MyPet is licensed under the GNU Lesser General Public License.
 *
 * MyPet is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * MyPet is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

import java.lang.reflect.Field;

public class Main {
    public static boolean setFieldValue(Field field, Object object, Object value) {
        try {
            field.set(object, value);
            return true;
        } catch (IllegalAccessException e) {
            return false;
        }

    }

    public static boolean setFieldValue(String fieldName, Object object, Object value) {
        try {
            Field field = getField(object.getClass(), fieldName);
            if (field != null) {
                field.set(object, value);
                return true;
            }
        } catch (IllegalAccessException ignored) {
        }
        return false;
    }

    public static Field getField(Class<?> clazz, String field) {
        try {
            Field f = clazz.getDeclaredField(field);
            f.setAccessible(true);
            return f;
        } catch (Exception ignored) {
            return null;
        }
    }

    public static Class getClass(String name) {
        try {
            return Class.forName(name);
        } catch (Exception ignored) {
            return Class.class;
        }
    }
}

Related

1. setFieldValue(Class expectedType, Object target, String fieldName, T value)
2. setFieldValue(Field f, Object target, Object value)
3. setFieldValue(Field field, Object instance, T value)
4. setFieldValue(Field field, Object obj, Object value)
5. setFieldValue(Field field, Object object, Object value)
6. setFieldValue(Field field, Object target, Object value)
7. setFieldValue(Field field, Object value, Object instance)
8. setFieldValue(Field field, Object value, Object target)
9. setFieldValue(final Class clazz, final String fieldName, final Object fieldValue)