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/**
 *  Copyright (c) 1997-2013, www.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.
 */
package org.tinygroup.tinydb;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * Bean，用于描述各种对象
 */
public class Bean extends HashMap {
    private static final long serialVersionUID = 7766936015089695L;
    private String type;// 对象所属的类，命名规则与类相同,
    private Map updateMarkMap=new HashMap();
    private List fields=new ArrayList();
    
    public static final String SELECT_ITEMS_KEY="$_select_items";//查询显示字段
    public static final String CONDITION_FIELD_KEY="$_codition_fields";//条件字段
    public static final String CONDITION_MODE_KEY="$_codition_mode";//条件模式
    public static final String ORDER_BY_KEY="$_order_by";//排序字段
    public static final String SORT_DIRECTION_KEY="$_sort_direction";//排序方向
    public static final String GROUP_BY_KEY="$_group_by";//分组字段
    public static final String EMPTY_CONDITION_KEY="$_empty_fields";//值为属性列表，如果属性对应的值是null或者"",需要进行为空或者null条件处理
    
    public Bean() {
		super();
	}

	/**
     * @param type
     */
    public Bean(String type) {
        this.type = type;
    }
    
    public List getFields() {
		return fields;
	}

	public void setFields(List fields) {
		this.fields = fields;
	}

	public Bean setProperty(String propertyName, Object property) {
        put(propertyName, property);
        return this;
    }

    public Bean set(String propertyName, Object property) {
        put(propertyName, property);
        return this;
    }

    public Bean setProperty(Bean bean) {
        putAll(bean);
        return this;
    }
    
	public Object put(String key, Object value) {
		Object object= super.put(key, value);
		updateMarkMap.put(key, true);
		return object;
	}

	@Override
	public void putAll(Map map) {
		super.putAll(map);
		for (String key : map.keySet()) {
			updateMarkMap.put(key, true);
		}
	}

	@SuppressWarnings("unchecked")
    public  T getProperty(String propertyName) {
        return (T) this.get(propertyName);
    }

    public String getType() {
        return type;
    }
    
    public void setType(String type) {
		this.type = type;
	}

	public void clearMark(){
    	updateMarkMap.clear();
    }

	public boolean getMark(String propertyName) {
		Boolean mark=updateMarkMap.get(propertyName);
		if(mark==null){
		   mark=false;
		}
		return mark;
	}

}