Package org.postgis.java2d

Class Java2DWrapper

java.lang.Object

org.postgresql.Driver

org.postgis.java2d.Java2DWrapper

All Implemented Interfaces:

Driver

public class Java2DWrapper
extends org.postgresql.Driver

Java2DWrapper Wraps the PostGreSQL Driver to add transparent readonly support for PostGIS objects into java2d path objects. This method currently works with J2EE DataSource implementations, and with DriverManager framework. Simply replace the "jdbc:postgresql:" with a "jdbc:postgis_j2d" in the jdbc URL.

Author:

markus.schaber@logix-tt.com

Field Summary

Fields

Modifier and Type	Field	Description
static String	POSTGIS_PROTOCOL
static String	REVISION

Constructor Summary

Constructors

Constructor	Description
Java2DWrapper()

Method Summary

Modifier and Type	Method	Description
boolean	acceptsURL(String url)	Returns true if the driver thinks it can open a connection to the given URL.
static void	addGISTypes(org.postgresql.PGConnection pgconn)	Adds the JTS/PostGIS Data types to a PG Connection.
Connection	connect(String url, Properties info)	Creates a postgresql connection, and then adds the PostGIS data types to it calling addpgtypes()
int	getMajorVersion()	Gets the underlying drivers major version number
int	getMinorVersion()	Get the underlying drivers minor version number
Logger	getParentLogger()
static String	getVersion()	Returns our own CVS version plus postgres Version
static String	mangleURL(String url)	Mangles the PostGIS URL to return the original PostGreSQL URL

Methods inherited from class org.postgresql.Driver

deregister, getPropertyInfo, getSharedTimer, isRegistered, jdbcCompliant, notImplemented, parseURL, register

Methods inherited from class java.lang.Object

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

Field Detail

POSTGIS_PROTOCOL

public static final String POSTGIS_PROTOCOL

See Also:

Constant Field Values

REVISION

public static final String REVISION

See Also:

Constant Field Values

Constructor Detail

Java2DWrapper

public Java2DWrapper()

Method Detail

connect

public Connection connect(String url,
                          Properties info)
                   throws SQLException

Creates a postgresql connection, and then adds the PostGIS data types to it calling addpgtypes()

Specified by:

connect in interface Driver

Overrides:

connect in class org.postgresql.Driver

Parameters:

url - the URL of the database to connect to

info - a list of arbitrary tag/value pairs as connection arguments

Returns:

a connection to the URL or null if it isnt us

Throws:

SQLException - if a database access error occurs

See Also:

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

addGISTypes

public static void addGISTypes(org.postgresql.PGConnection pgconn)
                        throws SQLException

Adds the JTS/PostGIS Data types to a PG Connection.

Parameters:

pgconn - The PGConnection object to add the types to

Throws:

SQLException - when a SQLException occurs

SQLException - when an SQLException occurs

mangleURL

public static String mangleURL(String url)
                        throws SQLException

Mangles the PostGIS URL to return the original PostGreSQL URL

Parameters:

url - String containing the url to be "mangled"

Returns:

"mangled" string

Throws:

SQLException - when a SQLException occurs

acceptsURL

public boolean acceptsURL(String url)

Returns true if the driver thinks 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 don't. Our protocols start with jdbc:postgresql_postGIS:

Specified by:

acceptsURL in interface Driver

Overrides:

acceptsURL in class org.postgresql.Driver

Parameters:

url - the URL of the driver

Returns:

true if this driver accepts the given URL

See Also:

Driver.acceptsURL(java.lang.String)

getMajorVersion

public int getMajorVersion()

Gets the underlying drivers major version number

Specified by:

getMajorVersion in interface Driver

Overrides:

getMajorVersion in class org.postgresql.Driver

Returns:

the drivers major version number

getMinorVersion

public int getMinorVersion()

Get the underlying drivers minor version number

Specified by:

getMinorVersion in interface Driver

Overrides:

getMinorVersion in class org.postgresql.Driver

Returns:

the drivers minor version number

getVersion

public static String getVersion()

Returns our own CVS version plus postgres Version

Returns:

String identifier for the version

getParentLogger

public Logger getParentLogger()

Specified by:

getParentLogger in interface Driver

Overrides:

getParentLogger in class org.postgresql.Driver