package?cn.easybuy.dao;
import?java.sql.*;
import?java.util.ArrayList;
import?java.util.HashMap;
import?java.util.List;
import?java.util.Map;

import?org.apache.log4j.Logger;

import?cn.easybuy.entity.ProductCategory;
import?cn.easybuy.utils.EmptyUtils;
import?cn.easybuy.utils.Params;

/**
?*?基礎dao的實現類，實現最基本的增刪查改的方法
?*/
public?abstract??class?baseDaoImpl?implements?IbaseDao?{

	protected?Connection?connection;

	protected?PreparedStatement?pstm;
	
	static?Logger?logger=Logger.getLogger（baseDaoImpl.class）;
			
	public?baseDaoImpl（Connection?connection）?{
		this.connection?=?connection;
	}

	public?ResultSet?executeQuery（String?sqlobject[]?params）{
		ResultSet?rs=null;
		try?{
			pstm?=?connection.prepareStatement（sql）;
			for（int?i?=?0;?i?				pstm.setobject（i+1?params[i]）;
			}
			rs?=?pstm.executeQuery（）;
		}?catch?（Exception?e）?{
			e.printStackTrace（）;
		}
		
		return?rs;
	}
	
	//增刪改操作?delete?from?news_detail?where?id=??and?title=?
	public?int?executeUpdate（String?sqlobject[]?params）{
		int?updateRows?=?0;
		try?{
			pstm?=?connection.prepareStatement（sql）;
			for（int?i?=?0;?i?				pstm.setobject（i+1?params[i]）;
			}
			updateRows?=?pstm.executeUpdate（）;
		}?catch?（Exception?e）?{
			e.printStackTrace（）;
			updateRows?=?-1;
		}
		
		return?updateRows;
	}
	
	public?int?executeInsert（String?sqlobject[]?params）{
		Long?id?=?0L;
		try?{
			pstm?=?connection.prepareStatement（sqlStatement.RETURN_GENERATED_KEYS）;
			for（int?i?=?0;?i?				pstm.setobject（i+1?params[i]）;
			}
			pstm.executeUpdate（）;
			ResultSet?rs?=?pstm.getGeneratedKeys（）;?
			if?（rs.next（））?{?
				id?=?rs.getLong（1）;
				System.out.println（“數據主鍵：“?+?id）;?
			}?
			
		}?catch?（Exception?e）?{
			e.printStackTrace（）;
			id?=null;
		}
		
		return?id.intValue（）;
	}
	
	
	//釋放資源
	public?boolean?closeResource（）{
		if（pstm?!=?null）{
			try?{
				pstm.close（）;
			}?catch?（SQLException?e）?{
				e.printStackTrace（）;
				return?false;
			}
		}
		return?true;
	}
	
	public?boolean?closeResource（ResultSet?reSet）{
		if（reSet?!=?null）{
			try?{
				reSet.close（）;
			}?catch?（SQLException?e）?{
				//?TODO?Auto-generated?catch?block
				e.printStackTrace（）;
				return?false;
			}
		}
		return?true;
	}
	/**
	?*?需要重寫的方法
	?*
	?*?@param?rs
	?*?@return
	?*?@throws?Exception
	?*/
	public?abstract?object?tableToClass（ResultSet?rs）?throws?Exception;
	
}