org.geotools.referencing.factory.epsg
Class HSQLDataSource

java.lang.Object
  org.hsqldb.jdbc.jdbcDataSource
      org.geotools.referencing.factory.epsg.HSQLDataSource

All Implemented Interfaces:

DataSource, javax.sql.DataSource, javax.naming.Referenceable, java.io.Serializable

public class HSQLDataSource

extends org.hsqldb.jdbc.jdbcDataSource

implements DataSource

Connection to the EPSG database in HSQL database engine format using JDBC. The EPSG database can be downloaded from http://www.epsg.org. The SQL scripts (modified for the HSQL syntax as explained here) are bundled into this plugin. The database version is given in the edition attribute of the authority. The HSQL database is read only.

Implementation note

The SQL scripts are executed the first time a connection is required. The database is then created as cached tables ( and files) in a temporary directory. Future connections to the EPSG database while reuse the cached tables, if available. Otherwise, the scripts will be executed again in order to recreate them.

If the EPSG database should be created in a different directory (or already exists in that directory), this directory can be specified in two ways:

• It may be given explicitly as an argument to the constructor.
• It may be specified as a system property nammed {@value}.

Since:

2.2

Version:

$Id: HSQLDataSource.java 18669 2006-03-14 23:27:27Z desruisseaux $

Author:

Martin Desruisseaux, Didier Richard

See Also:

Serialized Form

Field Summary

static java.lang.String	DATABASE_NAME The database name.
static java.lang.String	DIRECTORY_KEY The key for fetching the database directory from system properties.

Fields inherited from interface org.geotools.referencing.factory.epsg.DataSource

MAXIMUM_PRIORITY,