Package virtuoso.jdbc4

Class Driver

java.lang.Object

virtuoso.jdbc4.Driver

All Implemented Interfaces:

java.sql.Driver

public class Driver
extends java.lang.Object
implements java.sql.Driver

The Virtuoso DBMS Driver class is an implementation of the Driver interface in the JDBC API. It can be loaded in an application by :

   Class.forName("virtuoso.jdbc4.Driver")
 

, or statically with the -Djdbc.drivers=virtuoso.jdbc4.Driver on the java interpreter command line, or in the java properties files with an entry like before. Hints :

• You can see the version of the current Virtuoso DBMS JDBC driver accessible in the CLASSPATH with the java virtuoso.jdbc4.Driver

See Also:

Driver, DriverManager, VirtuosoConnection

Field Summary

Fields

Modifier and Type	Field	Description
protected static int	major
protected static int	minor

Constructor Summary

Constructors

Constructor	Description
Driver()	Constructs a Virtuoso DBMS Driver instance.

Method Summary

Modifier and Type	Method	Description
boolean	acceptsURL(java.lang.String url)	Returns true if the driver thinks that it can open a connection to the given URL.
java.sql.Connection	connect(java.lang.String url, java.util.Properties info)	Attempts to make a database connection to the given URL.
int	getMajorVersion()	Gets the driver's major version number.
int	getMinorVersion()	Gets the driver's minor version number.
java.util.logging.Logger	getParentLogger()	Return the parent Logger of all the Loggers used by this driver.
java.sql.DriverPropertyInfo[]	getPropertyInfo(java.lang.String url, java.util.Properties info)	Gets information about the possible properties for this driver.
boolean	jdbcCompliant()	Reports whether this driver is a genuine JDBC COMPLIANT driver.
static void	main(java.lang.String[] args)
protected java.util.Properties	urlToInfo(java.lang.String url, java.util.Properties _info)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

major

protected static final int major

See Also:

Constant Field Values

minor

protected static final int minor

See Also:

Constant Field Values

Constructor Detail

Driver

public Driver()
       throws java.sql.SQLException

Constructs a Virtuoso DBMS Driver instance. This function has not to be called directly, this function is called only during the DriverManager registration done with :

   Class.forName("virtuoso.jdbc4.Driver")
 

Throws:

java.sql.SQLException - an error occurred in registering

Method Detail

connect

public java.sql.Connection connect(java.lang.String url,
                                   java.util.Properties info)
                            throws VirtuosoException

Attempts to make a database connection to the given URL. The driver returns "null" if the URL given is not a Virtuoso DBMS JDBC URL. A URL under the Virtuoso DBMS JDBC driver should be :

   jdbc:virtuoso://host:port , or
   jdbc:virtuoso://host:port/UID=username/PWD=userpassword
 

This function is only called through the DriverManager.getConnection function.

Specified by:

connect in interface java.sql.Driver

Parameters:

url - the URL of the database to which to connect

info - a list of arbitrary string tag/value pairs as connection arguments. Normally at least a "user" and "password" property should be included.

Returns:

a Connection object that represents a connection to the URL

Throws:

VirtuosoException - it is the right driver to connect to the given URL, but has trouble connecting to the database.

See Also:

Driver.connect(java.lang.String, java.util.Properties)

acceptsURL

public boolean acceptsURL(java.lang.String url)
                   throws VirtuosoException

Returns true if the driver thinks that it can open a connection to the given URL. Typically drivers will return true if they understand the subprotocol specified in the URL and false if they do not.

Specified by:

acceptsURL in interface java.sql.Driver

Parameters:

url - the URL of the database

Returns:

true if this driver can connect to the given URL

Throws:

VirtuosoException - An internal error occurred.

See Also:

Driver.acceptsURL(java.lang.String)

urlToInfo

protected java.util.Properties urlToInfo(java.lang.String url,
                                         java.util.Properties _info)

getPropertyInfo

public java.sql.DriverPropertyInfo[] getPropertyInfo(java.lang.String url,
                                                     java.util.Properties info)
                                              throws VirtuosoException

Gets information about the possible properties for this driver.

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.

Specified by:

getPropertyInfo in interface java.sql.Driver

Parameters:

url - the URL of the database to which to connect

info - a proposed list of tag/value pairs that will be sent on connect open

Returns:

an array of DriverPropertyInfo objects describing possible properties. This array may be an empty array if no properties are required.

Throws:

VirtuosoException - An internal error occurred.

See Also:

Driver.getPropertyInfo(java.lang.String, java.util.Properties)

getMajorVersion

public int getMajorVersion()

Gets the driver's major version number.

Specified by:

getMajorVersion in interface java.sql.Driver

Returns:

this driver's major version number

getMinorVersion

public int getMinorVersion()

Gets the driver's minor version number.

Specified by:

getMinorVersion in interface java.sql.Driver

Returns:

this driver's minor version number

jdbcCompliant

public boolean jdbcCompliant()

Reports whether this driver is a genuine JDBC COMPLIANT driver.

Specified by:

jdbcCompliant in interface java.sql.Driver

Returns:

true if the JDBC Driver is compliant, false otherwise ... but our Virtuoso DBMS JDBC driver is compliant, so true is always returned.

main

public static void main(java.lang.String[] args)

getParentLogger

public java.util.logging.Logger getParentLogger()
                                         throws java.sql.SQLFeatureNotSupportedException

Return the parent Logger of all the Loggers used by this driver. This should be the Logger farthest from the root Logger that is still an ancestor of all of the Loggers used by this driver. Configuring this Logger will affect all of the log messages generated by the driver. In the worst case, this may be the root Logger.

Specified by:

getParentLogger in interface java.sql.Driver

Returns:

the parent Logger for this driver

Throws:

java.sql.SQLFeatureNotSupportedException - if the driver does not use java.util.logging.

Since:

1.7