jdcconnectiondriver.java

jdbc书

package pool;

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


public class JDCConnectionDriver implements Driver {

    public static final String URL_PREFIX = "jdbc:jdc:";
    private static final int MAJOR_VERSION = 1;
    private static final int MINOR_VERSION = 0;
    private JDCConnectionPool pool;

    public JDCConnectionDriver(String driver, String url, 
                                 String user, String password) 
                            throws ClassNotFoundException, 
                               InstantiationException, IllegalAccessException,
                                SQLException
    {


        DriverManager.registerDriver(this);
        Class.forName(driver).newInstance();
        pool = new JDCConnectionPool(url, user, password);
    }

    public Connection connect(String url, Properties props) 
                                       throws SQLException {
        if(!url.startsWith(URL_PREFIX) {
             return null;
        }
        return pool.getConnection();
    }

    public boolean acceptsURL(String url) {
        return url.startsWith(URL_PREFIX);
    }

    public int getMajorVersion() {
        return MAJOR_VERSION;
    }

    public int getMinorVersion() {
        return MINOR_VERSION;
    }

    public DriverPropertyInfo[] getPropertyInfo(String str, Properties props) {
        return new DriverPropertyInfo[0];
    }

    public boolean jdbcCompliant() {
        return false;
    }
}