Java Reflection Field Find findField(Object obj, String beanPath)

Description

find Field

License

Apache License

Declaration

public static Field findField(Object obj, String beanPath) 

Method Source Code

//package com.java2s;
/**/*  w  w w .j av a 2s.co  m*/
 * Copyright 2008-2009 the original author or authors.
 *
 * 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 obj, String beanPath) {
        try {
            if (beanPath.indexOf('.') > -1) {
                String name = beanPath.substring(0, beanPath.indexOf('.'));
                String path = beanPath.substring(beanPath.indexOf('.') + 1);
                Field field = obj.getClass().getDeclaredField(name);
                field.setAccessible(true);
                return findField(field.get(obj), path);
            } else if (obj == null) {
                return null;
            } else {
                return obj.getClass().getDeclaredField(beanPath);
            }
        } catch (NoSuchFieldException e) {
            return null;
        } catch (IllegalAccessException e) {
            throw new RuntimeException(e);
        }
    }
}

Related

1. findField(final Object instance, final String name)
2. findField(final Object src, final String fieldName)
3. findField(final String className, final String fieldName)
4. findField(Object container, String memberName)
5. findField(Object instance, String name)
6. findField(Object obj, String fieldName)
7. findField(Object obj, String fieldName, Class type)
8. findField(Object obj, String name)
9. findField(Object object, String fieldName)