InformixConnectionPool

package com.huawei.db;

import java.sql.*;

/**
* 分配，回收和管理JDBC连接
*/

public class InformixConnectionPool extends JdbcPool
{
public InformixConnectionPool
(
String driver, String url,
String username, String password,
int initialConnections,
int maxConnections,
int lockwait,
boolean waitIfBusy)
throws SQLException
{
super(driver, url, username, password, initialConnections, maxConnections, waitIfBusy);
}

/*
*明确地建立一连接。当ConnectionPool初始化时被在前台调用
*而当ConnectionPool在运行时，该函数在后台线程中被调用
*/
protected Connection makeNewConnection () throws SQLException
{
try
{
// Load database driver if not already loaded
DriverManager.registerDriver((Driver)Class.forName(driver).newInstance());

Connection connection =
DriverManager.getConnection(url, username, password);

return(connection);
}
catch(ClassNotFoundException cnfe)
{
// Simplify try/catch blocks of people using this by
// throwing only one exception type.
throw new SQLException("Can't find class for driver: " +
driver);
}
catch(Exception e)
{
throw new SQLException("some error getConnection="+e.toString());
}
}
}