File	Doc	Category	Size	Date	Package
MsqlDriver.java	API Doc	Example	5702	Tue Jan 01 00:00:00 GMT 1980	COM.imaginary.sql.msql

MsqlDriver

• java.lang.Object

Fields Summary

Constructors Summary
public MsqlDriver() Constructs an MsqlDriver instance. The JDBC specification requires the driver then to register itself with the DriverManager. exception java.sql.SQLException an error occurred in registering try { new MsqlDriver(); } catch( SQLException e ) { e.printStackTrace(); } super(); DriverManager.registerDriver(this);

Methods Summary
public boolean	acceptsURL(java.lang.String url) Returns true if the driver thinks that it can open a connection to the given URL. In this case, true is returned if and only if the subprotocol is 'msql'. param url The URL of the database. return True if this driver can connect to the given URL. exception java.sql.SQLException never actually is thrown if( url.length() < 10 ) { return false; } else { return url.substring(5,9).equals("msql"); }
public java.sql.Connection	connect(java.lang.String url, java.util.Properties p) Takes a look at the given URL to see if it is meant for this driver. If not, simply return null. If it is, then go ahead and connect to the database. For the mSQL implementation of JDBC, it looks for URL's in the form of jdbc:msql://[host_addr]:[port]/[db_name] see java.sql.Driver#connect param url the URL for the database in question param p the properties object return null if the URL should be ignored, a new Connection implementation if the URL is a valid mSQL URL exception java.sql.SQLException an error occurred during connection such as a network error or bad URL String host, database, orig = url; int i, port; if( url.startsWith("jdbc:") ) { if( url.length() < 6 ) { return null; } url = url.substring(5); } if( !url.startsWith("msql://") ) { return null; } if( url.length() < 8 ) { return null; } url = url.substring(7); i = url.indexOf(':"); if( i == -1 ) { port = 1114; i = url.indexOf('/"); if( i == -1 ) { throw new SQLException("Invalid mSQL URL: " + orig); } if( url.length() < i+1 ) { throw new SQLException("Invalid mSQL URL: " + orig); } host = url.substring(0, i); database = url.substring(i+1); } else { host = url.substring(0, i); if( url.length() < i+1 ) { throw new SQLException("Invalid mSQL URL: " + orig); } url = url.substring(i+1); i = url.indexOf('/"); if( i == -1 ) { throw new SQLException("Invalid mSQL URL: " + orig); } if( url.length() < i+1 ) { throw new SQLException("Invalid mSQL URL: " + orig); } try { port = Integer.parseInt(url.substring(0, i)); } catch( NumberFormatException e ) { throw new SQLException("Invalid port number: " + url.substring(0, i)); } database = url.substring(i+1); } return new MsqlConnection(host, port, database, p);
public int	getMajorVersion() Gives the major version for this driver as required by the JDBC specification. see java.sql.Driver#getMajorVersion return the major version return 1;
public int	getMinorVersion() Gives the minor version for this driver as required by the JDBC specification. see java.sql.Driver#getMinorVersion return the minor version return 0;
public java.sql.DriverPropertyInfo[]	getPropertyInfo(java.lang.String url, java.util.Properties info) The getPropertyInfo method is intended to allow a generic GUI tool to discover what properties it should prompt a human for in order to get enough information to connect to a database. Note that depending on the values the human has supplied so far, additional values may become necessary, so it may be necessary to iterate though several calls to getPropertyInfo. param url The URL of the database to connect to. param info A proposed list of tag/value pairs that will be sent on connect open. return An array of DriverPropertyInfo objects describing possible properties. This array may be an empty array if no properties are required. exception java.sql.SQLException never actually thrown return new DriverPropertyInfo[0];
public boolean	jdbcCompliant() Returns information noting the fact that the mSQL database is not SQL-92 and thus cannot support a JDBC compliant implementation. return false;