dbffileconnection.java

jdbc 的实例源码

/*
 *
 * Connection class for the dbfFile/tinySQL
 * JDBC driver
 *
 * A lot of this code is based on or directly taken from
 * George Reese's ([e-mail]) mSQL driver.
 *
 * So, it's probably safe to say:
 *
 * Portions of this code Copyright (c) 1996 George Reese
 *
 * The rest of it:
 *
 * Copyright 1996 John Wiley & Sons, Inc. All Rights Reserved. Reproduction
 * or translation of this work beyond that permitted in Section 117 of the 1976
 * United States Copyright Act without the express written permission of the
 * copyright owner is unlawful. Requests for further information should be 
 * addressed to Permissions Department, John Wiley & Sons, Inc. The 
 * purchaser may make back-up copies for his/her own use only and not for 
 * distribution or resale. The Publisher assumes no responsibility for errors, 
 * omissions, or damages, caused by the use of this  software or from the use
 * of the information contained herein.
 *
 */

import java.sql.CallableStatement;
import java.sql.DatabaseMetaData;
import java.sql.Driver;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.sql.SQLWarning;
import java.sql.Statement;

public class dbfFileConnection extends tinySQLConnection {

  /**
   *
   * Constructs a new JDBC Connection object.
   *
   * @exception SQLException in case of an error
   * @param user the user name - not currently used
   * @param u the url to the data source
   * @param d the Driver object
   *
   */
  public dbfFileConnection(String user, String u, Driver d) 
         throws SQLException {
    super(user, u, d);
  }

  /**
   *
   * Returns a new dbfFile object which is cast to a tinySQL
   * object.
   *
   */
  public tinySQL get_tinySQL() {

     // if there's a data directory, it will
     // be everything after the jdbc:dbfFile:
     //
     if (url.length() > 13) {
       String dataDir = url.substring(13);
       return (tinySQL) new dbfFile(dataDir);
     }

     // if there was no data directory specified in the
     // url, then just use the default constructor
     //
     return (tinySQL) new dbfFile();

  }

}