/*
* JEF - Copyright 2009-2010 Jiyi (mr.jiyi@gmail.com)
*
* 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.
*/
package jef.database;
import java.io.Serializable;
/**
* 用于描述JEF元模型的借口
* Field有以下实现种类
* 1、Enum型，即各个实体的元模型字段
* 2、FBIField 两个作用<BR>
* (a)描述一个索引字段<BR>
* (b)用来描述带函数的查询条件左表达式
* 3、IConditionField 用来描述一个完整的查询条件。有多种实现
* 4、RefField: 包含一个实例和一个Field模型字段，用于描述在一个实体的Field中引用另一个实体的Field
*
* @author Administrator
*
*/
public interface Field extends Serializable {
public String name();
}