org.geotools.data.geometryless
Class LocationsXYDataStore

java.lang.Object
  org.geotools.data.jdbc.JDBC1DataStore
      org.geotools.data.jdbc.JDBC2DataStore
          org.geotools.data.jdbc.JDBCDataStore
              org.geotools.data.geometryless.JDBCDataStore
                  org.geotools.data.geometryless.LocationsXYDataStore

All Implemented Interfaces:

DataStore

public class LocationsXYDataStore

extends JDBCDataStore

An implementation of the GeoTools Data Store API for a generic non-spatial database platform. This specialisation uses X,Y (lat/lon) database colums to hold point geometries the constructor is used to pass metadata from datastore to SQLEncoder class
Please see class JDBCDataStore and interface DataStore for DataStore usage details.

Author:

Rob Atkinson rob@socialchange.net.au

Field Summary

Fields inherited from class org.geotools.data.geometryless.JDBCDataStore

DEFAULT_NAMESPACE

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

connectionPool

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

allowWriteOnVolatileFIDs, config, listenerManager, sqlNameEscape, TYPE_MAPPINGS, typeHandler

Constructor Summary

LocationsXYDataStore(ConnectionPool connectionPool)

LocationsXYDataStore(ConnectionPool connectionPool, java.lang.String databaseSchemaName, java.lang.String x, java.lang.String y, java.lang.String geomName)
Constructor for LocationsXYDataStore where the database schema name is provided.

Method Summary

protected AttributeType	buildAttributeType(java.sql.ResultSet rs) Constructs an AttributeType from a row in a ResultSet.
protected JDBCFeatureWriter	createFeatureWriter(FeatureReader reader, QueryData queryData)
FeatureWriter	getFeatureWriter(java.lang.String typeName) Utility method for getting a FeatureWriter for modifying existing features, using no feature filtering and auto-committing.
FeatureWriter	getFeatureWriterAppend(java.lang.String typeName) Utility method for getting a FeatureWriter for adding new features, using auto-committing.
protected AttributeIO	getGeometryAttributeIO(AttributeType type, QueryData queryData) Hook to create the geometry attribute IO for a vendor specific data source.
SQLBuilder	getSqlBuilder(java.lang.String typeName) Hook for subclass to return a different sql builder.

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

createConnection

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

allowTable, allSameOrder, attributeNames, buildFIDMapperFactory, buildSchema, createFeatureReader, createLockingManager, createSchema, determineFidColumnName, determineSRID, executeQuery, getAttributeIO, getAttributeTypes, getConcurrency, getConnection, getEnvelope, getFeatureReader, getFeatureReader, getFeatureSource, getFeatureTypeHandler, getFeatureWriter, getFeatureWriter, getFeatureWriterAppend, getFIDMapper, getFIDMapperFactory, getJDBCFeatureReader, getLockingManager, getNameSpace, getResultSetType, getSchema, 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

LocationsXYDataStore

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

LocationsXYDataStore

public LocationsXYDataStore(ConnectionPool connectionPool,
                            java.lang.String databaseSchemaName,
                            java.lang.String x,
                            java.lang.String y,
                            java.lang.String geomName)
                     throws java.io.IOException

Constructor for LocationsXYDataStore where the database schema name is provided.

Parameters:

connectionPool - a MySQL ConnectionPool

databaseSchemaName - the database schema. Can be null. See the comments for the parameter schemaPattern in DatabaseMetaData.getTables, because databaseSchemaName behaves in the same way.

Throws:

java.io.IOException - if the database cannot be properly accessed

Method Detail

getFeatureWriter

public FeatureWriter getFeatureWriter(java.lang.String typeName)
                               throws java.io.IOException

Utility method for getting a FeatureWriter for modifying existing features, using no feature filtering and auto-committing. Not used for adding new features.

Overrides:

getFeatureWriter in class JDBCDataStore

Parameters:

typeName - the feature type name (the table name)

Returns:

a FeatureWriter for modifying existing features

Throws:

java.io.IOException - if the database cannot be properly accessed

getFeatureWriterAppend

public FeatureWriter getFeatureWriterAppend(java.lang.String typeName)
                                     throws java.io.IOException

Utility method for getting a FeatureWriter for adding new features, using auto-committing. Not used for modifying existing features.

Overrides:

getFeatureWriterAppend in class JDBCDataStore

Parameters:

typeName - the feature type name (the table name)

Returns:

a FeatureWriter for adding new features

Throws:

java.io.IOException - if the database cannot be properly accessed

buildAttributeType

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

Constructs an AttributeType from a row in a ResultSet. The ResultSet contains the information retrieved by a call to getColumns() on the DatabaseMetaData object. This information can be used to construct an Attribute Type.

In addition to standard SQL types, this method identifies MySQL 4.1's geometric datatypes and creates attribute types accordingly. This happens when the datatype, identified by column 5 of the ResultSet parameter, is equal to java.sql.Types.OTHER. If a Types.OTHER ends up not being geometric, this method simply calls the parent class's buildAttributeType method to do something with it.

Note: Overriding methods must never move the current row pointer in the result set.

Overrides:

buildAttributeType in class JDBCDataStore

Parameters:

rs - The ResultSet containing the result of a DatabaseMetaData.getColumns call.

Returns:

The AttributeType built from the ResultSet.

Throws:

java.sql.SQLException - If an error occurs processing the ResultSet.

DataSourceException - Provided for overriding classes to wrap exceptions caused by other operations they may perform to determine additional types. This will only be thrown by the default implementation if a type is present that is not present in the TYPE_MAPPINGS.

java.io.IOException

getSqlBuilder

public SQLBuilder getSqlBuilder(java.lang.String typeName)
                         throws java.io.IOException

Description copied from class: JDBC1DataStore

Hook for subclass to return a different sql builder.

Overrides:

getSqlBuilder in class JDBCDataStore

Throws:

java.io.IOException

getGeometryAttributeIO

protected AttributeIO getGeometryAttributeIO(AttributeType type,
                                             QueryData queryData)

Description copied from class: JDBC1DataStore

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

Overrides:

getGeometryAttributeIO in class JDBCDataStore

See Also:

org.geotools.data.jdbc.JDBCDataStore#getGeometryAttributeIO(org.geotools.feature.AttributeType)

createFeatureWriter

protected JDBCFeatureWriter createFeatureWriter(FeatureReader reader,
                                                QueryData queryData)
                                         throws java.io.IOException

Overrides:

createFeatureWriter in class JDBCDataStore

Throws:

java.io.IOException