net.postgis.jdbc

Class DriverWrapperAutoprobe

java.lang.Object

org.postgresql.Driver

net.postgis.jdbc.DriverWrapper

net.postgis.jdbc.DriverWrapperAutoprobe

All Implemented Interfaces:

Driver

public class DriverWrapperAutoprobe
extends DriverWrapper

DriverWrapperAutoprobe Wraps the PostGreSQL Driver to transparently add the PostGIS Object Classes. This avoids the need of explicit addDataType() calls from the driver users side. This DriverWrapper tries to autoprobe the installed PostGIS version to decide whether to use EWKT or hex encoded EWKB as canonical text representation. It uses the first PostGIS installation found in your namespace search path (aka schema search path) on the server side, and this works as long as you do not access incompatible PostGIS versions that reside in other schemas. For usage notes, see DriverWrapper class, but use "jdbc:postgresql_autogis:" as JDBC url prefix and net.postgis.jdbc.DriverWrapperAutoprobe as driver class.

Author:

Markus Schaber <markus.schaber@logix-tt.com>

See Also:

DriverWrapper

Nested Class Summary

Nested classes/interfaces inherited from class net.postgis.jdbc.DriverWrapper

DriverWrapper.TypesAdder, DriverWrapper.TypesAdder72, DriverWrapper.TypesAdder74, DriverWrapper.TypesAdder80

Field Summary

Fields

Modifier and Type	Field and Description
static String	POSTGIS_AUTOPROTOCOL
static String	REVISIONAUTO

Fields inherited from class net.postgis.jdbc.DriverWrapper

logger, POSTGIS_PROTOCOL, POSTGRES_PROTOCOL, REVISION, ta72, ta74, ta80, typesAdder

Constructor Summary

Constructors

Constructor and Description
DriverWrapperAutoprobe() Default constructor.

Method Summary

Modifier and Type	Method and Description
protected String	getProtoString()
static String	getVersion() Returns our own CVS version plus postgres Version
static boolean	supportsEWKB(Connection conn)
protected boolean	useLW(Connection conn) Do we have HexWKB as well known text representation - to be overridden by subclasses.

Methods inherited from class net.postgis.jdbc.DriverWrapper

acceptsURL, addGISTypes, addGISTypes72, addGISTypes80, connect, getParentLogger, getTypesAdder, mangleURL

Methods inherited from class org.postgresql.Driver

deregister, getMajorVersion, getMinorVersion, 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_AUTOPROTOCOL

public static final String POSTGIS_AUTOPROTOCOL

See Also:

Constant Field Values

REVISIONAUTO

public static final String REVISIONAUTO

See Also:

Constant Field Values

Constructor Detail

DriverWrapperAutoprobe

public DriverWrapperAutoprobe()
                       throws SQLException

Default constructor.

Throws:

SQLException - when a SQLExceptin occurs

Method Detail

getProtoString

protected String getProtoString()

Overrides:

getProtoString in class DriverWrapper

useLW

protected boolean useLW(Connection conn)

Description copied from class: DriverWrapper

Do we have HexWKB as well known text representation - to be overridden by subclasses.

Overrides:

useLW in class DriverWrapper

Parameters:

conn - Connection to check

Returns:

true if using EWKB, false otherwise

getVersion

public static String getVersion()

Returns our own CVS version plus postgres Version

Returns:

String value reprenstation of the version

supportsEWKB

public static boolean supportsEWKB(Connection conn)
                            throws SQLException

Throws:

SQLException