Java Reflection Field Find findFieldInClassHierarchy(Class clazz, String fieldName)

Description

find Field In Class Hierarchy

License

Apache License

Declaration

private static Field findFieldInClassHierarchy(Class<?> clazz, String fieldName) 

Method Source Code

//package com.java2s;
/*/*from   w ww .j  a v a  2  s  .c om*/
 * Copyright 2012 Ben Verbeken
 *
 * 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 {
    private static Field findFieldInClassHierarchy(Class<?> clazz, String fieldName) {
        Field field = getDeclaredField(clazz, fieldName);
        while (field == null && clazz != Object.class) {
            clazz = clazz.getSuperclass();
            field = getDeclaredField(clazz, fieldName);
        }
        return field;
    }

    private static Field getDeclaredField(Class<?> clazz, String fieldName) {
        try {
            return clazz.getDeclaredField(fieldName);
        } catch (NoSuchFieldException e) {
            return null;
        }
    }
}

Related

1. findFieldEx(Class type, Class annotationClass)
2. findFieldFromClassHierarchy(Class clazz, String fieldName)
3. findFieldFromGetter(Class clazz, Method method)
4. findFieldIn(Class type, String name)
5. findFieldInClass(Class clazz, String fieldName)
6. findFieldIncludeSuperclass(String fieldName, Class clazz)
7. findFieldInternal(Class currentClass, Class annotation, Set fields)
8. findFieldOfBean(Object bean, String fieldName)
9. findFieldOfTypeInClass(final Class source, final Class type)