org.geotools.referencing.factory.epsg
Class ThreadedPostgreSQLEpsgFactory

Object
  extended by AbstractFactory
      extended by ReferencingFactory
          extended by AbstractAuthorityFactory
              extended by BufferedAuthorityFactory
                  extended by DeferredAuthorityFactory
                      extended by ThreadedEpsgFactory
                          extended by ThreadedPostgreSQLEpsgFactory
All Implemented Interfaces:
RegisterableService, BufferedFactory, Factory, OptionalFactory, AuthorityFactory, CRSAuthorityFactory, CSAuthorityFactory, DatumAuthorityFactory, CoordinateOperationAuthorityFactory

public class ThreadedPostgreSQLEpsgFactory
extends ThreadedEpsgFactory

Connection to the EPSG database in PostgreSQL database engine using JDBC. The EPSG database can be downloaded from http://www.epsg.org. It should have been imported into a PostgreSQL database, which doesn't need to be on the local machine.

Connection parameters

The preferred way to specify connection parameters is through the JNDI interface. However, this datasource provides the following alternative as a convenience: if a "EPSG-DataSource.properties" file is found in current directory or in the user's home directory, then the following properties are fetch. Note that the default value may change in a future version if a public server become available.

Property Type Description Geotools Default
serverName String PostgreSQL database server host name localhost
databaseName String PostgreSQL database name EPSG
schema String The schema for the EPSG tables
portNumber int TCP port which the PostgreSQL database server is listening on 5432
user String User used to make database connections GeoTools
password String Password used to make database connections GeoTools

The database version is given in the edition attribute of the authority. The postgreSQL database should be read only.

Just having this class accessible in the classpath, together with the registration in the META-INF/services/ directory, is suffisient to get a working EPSG authority factory backed by this database. Vendors can create a copy of this class, modify it and bundle it with their own distribution if they want to connect their users to an other database.

Since:
2.4
Author:
Didier Richard, Martin Desruisseaux
Tutorial:
How to install the EPSG database in PostgreSQL
Module:

Field Summary
static String CONFIGURATION_FILE
          The user configuration file.
 
Fields inherited from class ThreadedEpsgFactory
DATASOURCE_NAME
 
Fields inherited from class ReferencingFactory
LOGGER
 
Fields inherited from class AbstractFactory
hints, MAXIMUM_PRIORITY, MINIMUM_PRIORITY, NORMAL_PRIORITY, priority
 
Constructor Summary
ThreadedPostgreSQLEpsgFactory()
          Creates a new instance of this factory.
ThreadedPostgreSQLEpsgFactory(Hints hints)
          Creates a new instance of this factory with the specified hints.
 
Method Summary
protected  AbstractAuthorityFactory createBackingStore(Hints hints)
          Returns the backing-store factory for PostgreSQL syntax.
protected  DataSource createDataSource()
          Returns a data source for the PostgreSQL database.
 
Methods inherited from class ThreadedEpsgFactory
canDisposeBackingStore, createBackingStore, getAuthority, getDataSource, onDeregistration, onRegistration, setDataSource
 
Methods inherited from class DeferredAuthorityFactory
dispose, isAvailable, isConnected, setTimeout
 
Methods inherited from class BufferedAuthorityFactory
createCartesianCS, createCompoundCRS, createCoordinateOperation, createCoordinateReferenceSystem, createCoordinateSystem, createCoordinateSystemAxis, createCylindricalCS, createDatum, createDerivedCRS, createEllipsoid, createEllipsoidalCS, createEngineeringCRS, createEngineeringDatum, createExtent, createFromCoordinateReferenceSystemCodes, createGeocentricCRS, createGeodeticDatum, createGeographicCRS, createImageCRS, createImageDatum, createObject, createOperationMethod, createParameterDescriptor, createPolarCS, createPrimeMeridian, createProjectedCRS, createSphericalCS, createTemporalCRS, createTemporalDatum, createTimeCS, createUnit, createVerticalCRS, createVerticalCS, createVerticalDatum, getAuthorityCodes, getBackingStoreDescription, getDescriptionText, getIdentifiedObjectFinder, getVendor
 
Methods inherited from class AbstractAuthorityFactory
noSuchAuthorityCode, trimAuthority
 
Methods inherited from class ReferencingFactory
ensureNonNull
 
Methods inherited from class AbstractFactory
addImplementationHints, equals, getImplementationHints, getPriority, hashCode, toString
 
Methods inherited from class Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface CRSAuthorityFactory
createCompoundCRS, createCoordinateReferenceSystem, createDerivedCRS, createEngineeringCRS, createGeocentricCRS, createGeographicCRS, createImageCRS, createProjectedCRS, createTemporalCRS, createVerticalCRS
 
Methods inherited from interface AuthorityFactory
createObject, getAuthorityCodes, getDescriptionText
 
Methods inherited from interface Factory
getVendor
 
Methods inherited from interface CSAuthorityFactory
createCartesianCS, createCoordinateSystem, createCoordinateSystemAxis, createCylindricalCS, createEllipsoidalCS, createPolarCS, createSphericalCS, createTimeCS, createUnit, createVerticalCS
 
Methods inherited from interface AuthorityFactory
createObject, getAuthorityCodes, getDescriptionText
 
Methods inherited from interface Factory
getVendor
 
Methods inherited from interface DatumAuthorityFactory
createDatum, createEllipsoid, createEngineeringDatum, createGeodeticDatum, createImageDatum, createPrimeMeridian, createTemporalDatum, createVerticalDatum
 
Methods inherited from interface AuthorityFactory
createObject, getAuthorityCodes, getDescriptionText
 
Methods inherited from interface Factory
getVendor
 
Methods inherited from interface CoordinateOperationAuthorityFactory
createCoordinateOperation, createFromCoordinateReferenceSystemCodes
 
Methods inherited from interface AuthorityFactory
createObject, getAuthorityCodes, getDescriptionText
 
Methods inherited from interface Factory
getVendor
 
Methods inherited from interface Factory
getImplementationHints
 

Field Detail

CONFIGURATION_FILE

public static final String CONFIGURATION_FILE
The user configuration file. This class search first for the first file found in the following directories:

See Also:
Constant Field Values
Constructor Detail

ThreadedPostgreSQLEpsgFactory

public ThreadedPostgreSQLEpsgFactory()
Creates a new instance of this factory.


ThreadedPostgreSQLEpsgFactory

public ThreadedPostgreSQLEpsgFactory(Hints hints)
Creates a new instance of this factory with the specified hints. The priority is set to a lower value than the FactoryOnAccess's one in order to give the priority to any "official" database installed locally by the user, when available.

Method Detail

createDataSource

protected DataSource createDataSource()
                               throws SQLException
Returns a data source for the PostgreSQL database.

Overrides:
createDataSource in class ThreadedEpsgFactory
Returns:
The EPSG data source, or null if none where found.
Throws:
SQLException - if an error occured while creating the data source.

createBackingStore

protected AbstractAuthorityFactory createBackingStore(Hints hints)
                                               throws SQLException
Returns the backing-store factory for PostgreSQL syntax.

Overrides:
createBackingStore in class ThreadedEpsgFactory
Parameters:
hints - A map of hints, including the low-level factories to use for CRS creation.
Returns:
The EPSG factory using PostgreSQL syntax.
Throws:
SQLException - if connection to the database failed.


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