customercardaccess.java

Athena酒店小组_Athena酒店管理系统

/*
 * CustomerAccess.java
 *
 * Created on 2007年5月23日, 上午1:39
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package evan;

import java.sql.*;
import java.util.*;

import plugin.*;
import helper.*;

/**
 *
 * @author Evan Chan
 */
public class CustomerCardAccess
{
    private IDBResource dbRes;
    
    /** Creates a new instance of CustomerAccess */
    public CustomerCardAccess(IDBResource dbRes)
    {
	this.dbRes = dbRes;
    }
    
    public int insert(CustomerCardInfo customerCardInfo)
    {
	try
	{
	    Connection conn = dbRes.getConnection();
	    String sql = "INSERT INTO CustomerCardInfo(CardId, Money, Password) " +
		    " VALUES(?, ?, ?)";
	    PreparedStatement ps = conn.prepareStatement(sql);
	    
	    ps.setString(1, customerCardInfo.getCardId());
	    ps.setString(2, Double.toString(customerCardInfo.getMoney()));
	    ps.setString(3, customerCardInfo.getPassword());
	    int rs = ps.executeUpdate();
	    return rs;
	}
	catch (SQLException ex)
	{
	    ex.printStackTrace();
	    return -1;
	}
    }
    
    public int update(CustomerCardInfo customerCardInfo)
    {
	try
	{
	    Connection conn = dbRes.getConnection();
	    String sql = "UPDATE CustomerCardInfo SET CardId = ?, CardName = ?, Remark = ?) " +
		    "WHERE CardId = ?";
	    PreparedStatement ps = conn.prepareStatement(sql);	    
	    
	    ps.setString(1, customerCardInfo.getCardId());
	    ps.setString(2, Double.toString(customerCardInfo.getMoney()));
	    ps.setString(3, customerCardInfo.getPassword());
	    int rs = ps.executeUpdate();
	    return rs;
	}
	catch (SQLException ex)
	{
	    ex.printStackTrace();
	    return -1;
	}
    }
    
    public int delete(CustomerCardInfo customerCardInfo)
    {
	try
	{
	    Connection conn = dbRes.getConnection();
	    String sql = "DELETE FROM CustomerCardInfo WHERE CardId = ?";
	    PreparedStatement ps = conn.prepareStatement(sql);
	    
	    ps.setString(1, customerCardInfo.getCardId());
	    
	    int rs = ps.executeUpdate();
	    return rs;
	}
	catch (SQLException ex)
	{
	    ex.printStackTrace();
	    return -1;
	}
    }
    
    public CustomerCardInfo getCardById(String CardId)
    {
	try
	{
	    Connection conn = dbRes.getConnection();
	    String sql = "SELECT * FROM CustomerCardInfo WHERE CardId = ?";
	    PreparedStatement ps = conn.prepareStatement(sql);
	    ps.setString(1, CardId);
	    ResultSet rs = ps.executeQuery();
	    ArrayList<CustomerCardInfo> customers = new ArrayList<CustomerCardInfo>();
	    readData(customers, rs);
	    if (customers.size() != 1)
	    {
		return null;
	    }
	    return customers.get(0);
	}
	catch (SQLException ex)
	{
	    ex.printStackTrace();
	    return null;
	}
    }
    
    public ArrayList<CustomerCardInfo> getAllCustomerCards()
    {
	try
	{
	    Connection conn = dbRes.getConnection();
	    String sql = "SELECT * FROM CustomerCardInfo";
	    PreparedStatement ps = conn.prepareStatement(sql);
	    ResultSet rs = ps.executeQuery();
	    ArrayList<CustomerCardInfo> customers = new ArrayList<CustomerCardInfo>();
	    readData(customers, rs);
	    return customers;
	}
	catch (SQLException ex)
	{
	    ex.printStackTrace();
	    return null;
	}
    }
    
    public ArrayList<CustomerCardInfo> getCustomerCardsByCondition(ArrayList<String> names, ArrayList<Object> values)
    {
	try
	{
	    Connection conn = dbRes.getConnection();
	    String sql = "SELECT * FROM CustomerCardInfo " + SQLHelper.createCondition(names);
	    PreparedStatement ps = conn.prepareStatement(sql);
	    for(int i = 0; i < values.size(); i++)
	    {
		ps.setObject(i+1, values.get(i));
	    }
	    ResultSet rs = ps.executeQuery();
	    ArrayList<CustomerCardInfo> customers = new ArrayList<CustomerCardInfo>();
	    readData(customers, rs);
	    return customers;
	}
	catch (SQLException ex)
	{
	    ex.printStackTrace();
	    return null;
	}
    }
    
    
    private void readData(ArrayList<CustomerCardInfo> customers, ResultSet rs) throws SQLException
    {
	while(rs.next())
	{
	    CustomerCardInfo customer = new CustomerCardInfo();
	    customer.setCardId(rs.getString("CardId"));
	    customer.setMoney(Double.parseDouble(rs.getString("Money")));
	    customer.setPassword(rs.getString("Password"));
	    customers.add(customer);
	}
    }    
}