org.geotools.data.geometryless
Class LocationsXYDataStoreFactory

java.lang.Object
  org.geotools.factory.AbstractFactory
      org.geotools.data.geometryless.LocationsXYDataStoreFactory

All Implemented Interfaces:

DataStoreFactorySpi, Factory, javax.imageio.spi.RegisterableService

public class LocationsXYDataStoreFactory

extends AbstractFactory

implements DataStoreFactorySpi

Creates a Geometryless JDBC based on the conection params.

This factory should be registered in the META-INF/ folder, under services/ in the DataStoreFactorySpi file.

REVISIT: I believe the use of the namespace param needs to be revisited. GeoServer is going to start making use of this, as the XML namespace that the feature type should be created with. The use of namespace in this package is that of a database schema name. Though investigating futher it looks like all the dbs use it that way. So this is just a note that xml namespace and database namespace need to be reconciled. The work done in this package seems to be begging some datastore hierarchy refactoring, hopefully when we do that we can also get jdbc datastore factories in a hierarchy, instead of each just doing their own thing. -ch

Version:

$Id: LocationsXYDataStoreFactory.java 17700 2006-01-22 23:30:39Z desruisseaux $

Author:

Rob Atkinson, Social Change Online, Chris Holmes, TOPP

Nested Class Summary

Nested classes inherited from class org.geotools.data.DataStoreFactorySpi

DataStoreFactorySpi.Param

Field Summary

Fields inherited from class org.geotools.factory.AbstractFactory

hints, MAXIMUM_PRIORITY, MINIMUM_PRIORITY, NORMAL_PRIORITY, priority

Constructor Summary

LocationsXYDataStoreFactory(java.util.Map hints)
Creates a new instance of PostgisDataStoreFactory

Method Summary

boolean	canProcess(java.util.Map params) Checks to see if all the postgis params are there.
DataStore	createDataStore(java.util.Map params) Construct a postgis data store using the params.
DataStore	createNewDataStore(java.util.Map params) The datastore cannot create a new database.
java.lang.String	getDescription() Describe the nature of the datasource constructed by this factory.
java.lang.String	getDisplayName() Name suitable for display to end user.
DataStoreFactorySpi.Param[]	getParametersInfo() Describe parameters.
boolean	isAvailable() Test to see if this datastore is available, if it has all the appropriate libraries to construct a datastore.

Methods inherited from class org.geotools.factory.AbstractFactory

getImplementationHints, onDeregistration, onRegistration

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.geotools.factory.Factory

getImplementationHints

Constructor Detail

LocationsXYDataStoreFactory

public LocationsXYDataStoreFactory(java.util.Map hints)

Creates a new instance of PostgisDataStoreFactory

Method Detail

canProcess

public boolean canProcess(java.util.Map params)

Checks to see if all the postgis params are there.

Should have:

• dbtype: equal to postgis
• host
• user
• passwd
• database
• charset

Specified by:

canProcess in interface DataStoreFactorySpi

Parameters:

params - Set of parameters needed for a jdbc data store.

Returns:

true if dbtype equals locationsXy, and contains keys for host, user, passwd, and database.

createDataStore

public DataStore createDataStore(java.util.Map params)
                          throws java.io.IOException

Construct a postgis data store using the params.

Specified by:

createDataStore in interface DataStoreFactorySpi

Parameters:

params - The full set of information needed to construct a live data source. Should have dbtype equal to locationsxy, as well as host, user, passwd, database, and table.

Returns:

The created DataSource, this may be null if the required resource was not found or if insufficent parameters were given. Note that canProcess() should have returned false if the problem is to do with insuficent parameters.

Throws:

java.io.IOException - See DataSourceException

DataSourceException - Thrown if there were any problems creating or connecting the datasource.

createNewDataStore

public DataStore createNewDataStore(java.util.Map params)
                             throws java.io.IOException

The datastore cannot create a new database.

Specified by:

createNewDataStore in interface DataStoreFactorySpi

Parameters:

params -

Returns:

Throws:

java.io.IOException - See UnsupportedOperationException

java.lang.UnsupportedOperationException - Cannot create new database

getDescription

public java.lang.String getDescription()

Describe the nature of the datasource constructed by this factory.

Specified by:

getDescription in interface DataStoreFactorySpi

Returns:

A human readable description that is suitable for inclusion in a list of available datasources.

getDisplayName

public java.lang.String getDisplayName()

Description copied from interface: DataStoreFactorySpi

Name suitable for display to end user.

A non localized display name for this data store type.

Specified by:

getDisplayName in interface DataStoreFactorySpi

Returns:

A short name suitable for display in a user interface.

isAvailable

public boolean isAvailable()

Test to see if this datastore is available, if it has all the appropriate libraries to construct a datastore. This datastore just returns true for now. This method is used for gui apps, so as to not advertise data store capabilities they don't actually have.

Specified by:

isAvailable in interface DataStoreFactorySpi

Returns:

true if and only if this factory is available to create DataStores.

getParametersInfo

public DataStoreFactorySpi.Param[] getParametersInfo()

Describe parameters.

Specified by:

getParametersInfo in interface DataStoreFactorySpi

Returns:

See Also:

DataStoreFactorySpi.getParametersInfo()