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/**
 *  Copyright (c) 1997-2013, tinygroup.org ([email protected]).
 *
 *  Licensed under the GPL, Version 3.0 (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.gnu.org/licenses/gpl.html
 *
 *  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.
 * --------------------------------------------------------------------------
 *  版权 (c) 1997-2013, tinygroup.org ([email protected]).
 *
 *  本开源软件遵循 GPL 3.0 协议;
 *  如果您不遵循此协议，则不被允许使用此文件。
 *  你可以从下面的地址获取完整的协议文本
 *
 *       http://www.gnu.org/licenses/gpl.html
 */
package org.tinygroup.mongodb.engine.comparemode;

import org.bson.BSONObject;
import org.tinygroup.context.Context;

/**
 * 
 * 功能说明:mongodb的比较模式接口 

 * 开发人员: renhui 

 * 开发时间: 2013-11-27 

 * 

 */
public interface MongoCompareMode {
	
	/**
	 * 
	 * 返回比较模式的DBObject
	 * @param propertyName 属性名称
	 * @param value
	 * @param context 上下文
	 * @return
	 */
	public BSONObject generateBSONObject(String propertyName, Object value, Context context);
	
	/**
	 * 
	 * 获取此比较模式的名称
	 * @return
	 */
	public String getCompareKey();
	/**
	 * 
	 * 比较模式是否需要值
	 * @return
	 */
	public boolean needValue();

}