Java Reflection Field Find findField(Object object, String fieldName)

Description

find Field

License

Apache License

Declaration

public static Field findField(Object object, String fieldName) throws NoSuchFieldException 

Method Source Code

//package com.java2s;
/**/*  ww w. j  a v  a 2  s .  com*/
 * Copyright Universite Joseph Fourier (www.ujf-grenoble.fr)
 * 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.
 */

import java.lang.reflect.Field;

public class Main {
    public static Field findField(Object object, String fieldName) throws NoSuchFieldException {
        Field field = null;
        Class<? extends Object> claz = object.getClass();
        while (claz != null && field == null) {
            try {
                field = claz.getDeclaredField(fieldName);
            } catch (NoSuchFieldException e) {
                claz = claz.getSuperclass();
            }
        }
        if (field == null)
            throw new NoSuchFieldException("Can't find field with name " + fieldName);

        return field;
    }
}

Related

1. findField(Object instance, String name)
2. findField(Object obj, String beanPath)
3. findField(Object obj, String fieldName)
4. findField(Object obj, String fieldName, Class type)
5. findField(Object obj, String name)
6. findField(Object object, String name, Class klass)
7. findField(Object propertyId, Class classOfItem)
8. findField(Object target, Class type)
9. findField(Object target, String fieldName)