org.geotools.data.geomedia
Class GeoMediaDataStore

java.lang.Object
  org.geotools.data.jdbc.JDBC1DataStore
      org.geotools.data.jdbc.JDBC2DataStore
          org.geotools.data.jdbc.JDBCDataStore
              org.geotools.data.geomedia.GeoMediaDataStore

All Implemented Interfaces:

DataStore

public class GeoMediaDataStore

extends JDBCDataStore

Geomedia data store implementation

Version:

1.0

Author:

Julian J. Ray

Field Summary

Fields inherited from class org.geotools.data.jdbc.JDBC2DataStore

connectionPool

Fields inherited from class org.geotools.data.jdbc.JDBC1DataStore

allowWriteOnVolatileFIDs, config, listenerManager, sqlNameEscape, typeHandler

Constructor Summary

GeoMediaDataStore(ConnectionPool connectionPool)
Creates a new GeoMediaDataStore instance

Method Summary

protected boolean	allowTable(java.lang.String tablename) Returns feature tables which have been entered into the GeoMedia metadata table.
protected AttributeType	buildAttributeType(java.sql.ResultSet rs) Overrides the buildAttributeType method to check for GDO_GEOMETRY columns.
protected AttributeIO	getGeometryAttributeIO(AttributeType type, QueryData queryData) Hook to create the geometry attribute IO for a vendor specific data source.
void	readMetadata() Reads the GeoMedia GFeatures table and caches metadata information.

Methods inherited from class org.geotools.data.jdbc.JDBC2DataStore

createConnection

Methods inherited from class org.geotools.data.jdbc.JDBC1DataStore

allSameOrder, attributeNames, buildFIDMapperFactory, buildSchema, createFeatureReader, createFeatureWriter, createLockingManager, createSchema, determineFidColumnName, determineSRID, executeQuery, getAttributeIO, getAttributeTypes, getConcurrency, getConnection, getEnvelope, getFeatureReader, getFeatureReader, getFeatureSource, getFeatureTypeHandler, getFeatureWriter, getFeatureWriter, getFeatureWriterAppend, getFIDMapper, getFIDMapperFactory, getJDBCFeatureReader, getLockingManager, getNameSpace, getResultSetType, getSchema, getSqlBuilder, getSqlNameEscape, getTypeNames, getView, setAutoCommit, setFIDMapper, setFIDMapperFactory, setSqlNameEscape, updateSchema

Methods inherited from class java.lang.Object

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

Constructor Detail

GeoMediaDataStore

public GeoMediaDataStore(ConnectionPool connectionPool)
                  throws java.io.IOException

Creates a new GeoMediaDataStore instance

Parameters:

connectionPool - ConnectionPool

Throws:

java.io.IOException

Method Detail

readMetadata

public void readMetadata()
                  throws DataSourceException

Reads the GeoMedia GFeatures table and caches metadata information. If the metadata has already been read, it is overwritten. Used to update the DataStore if changes have been made by GeoMedia.

Throws:

DataSourceException

allowTable

protected boolean allowTable(java.lang.String tablename)

Returns feature tables which have been entered into the GeoMedia metadata table.

Overrides:

allowTable in class JDBC1DataStore

Parameters:

tablename - String - the table to test

Returns:

boolean - true if the table is a spatial table, false otherwise.

buildAttributeType

protected AttributeType buildAttributeType(java.sql.ResultSet rs)
                                    throws java.io.IOException

Overrides the buildAttributeType method to check for GDO_GEOMETRY columns. This function fromes any GeoMedia managed columns which do not contain spatial data such as GDO_GEOMETRY_XHI and spatial indexes.

Overrides:

buildAttributeType in class JDBC1DataStore

Parameters:

rs - ResultSet

Returns:

AttributeType

Throws:

java.sql.SQLException

DataSourceException

java.io.IOException - If an error occurs processing the ResultSet.

See Also:

org.geolbs.data.jdbc.JDBCDataStore#buildAttributeType(java.sql.ResultSet)

getGeometryAttributeIO

protected AttributeIO getGeometryAttributeIO(AttributeType type,
                                             QueryData queryData)
                                      throws java.io.IOException

Description copied from class: JDBC1DataStore

Hook to create the geometry attribute IO for a vendor specific data source.

Specified by:

getGeometryAttributeIO in class JDBC1DataStore

Parameters:

type - The AttributeType to read.

queryData - The connection holder

Returns:

The AttributeIO that will read and write the geometry from the results.

Throws:

java.io.IOException - DOCUMENT ME!

See Also:

JDBC1DataStore.getGeometryAttributeIO(org.geotools.feature.AttributeType, org.geotools.data.jdbc.QueryData)