org.geotools.data.ogr

Class OGRDataStore

Object

ContentDataStore

OGRDataStore

All Implemented Interfaces:

DataAccess<SimpleFeatureType,SimpleFeature>, DataStore

public class OGRDataStore
extends ContentDataStore

A data store based on the OGR native library

Author:

Andrea Aime - GeoSolutions

Field Summary

Fields inherited from class ContentDataStore

dataStoreFactory, entries, featureFactory, filterFactory, geometryFactory, JOINED_FEATURE_TYPE, lockingManager, LOGGER, namespaceURI, typeFactory, WRITER_ADD, WRITER_COMMIT, WRITER_UPDATE

Constructor Summary

Constructors

Constructor and Description
OGRDataStore(String ogrName, String ogrDriver, URI namespace, OGR ogr)
OGRDataStore(String ogrName, String ogrDriver, URI namespace, OGR ogr, OGRDataSourcePool dataSourcePool)

Method Summary

Modifier and Type	Method and Description
protected ContentFeatureSource	createFeatureSource(ContentEntry entry) Instantiates new feature source for the entry.
void	createSchema(SimpleFeatureCollection data, boolean approximateFields, String[] options) Creates a new OGR layer with provided data and options.
void	createSchema(SimpleFeatureType schema) Creates a new schema in the datastore.
void	createSchema(SimpleFeatureType schema, boolean approximateFields, String[] options) Creates a new OGR layer with provided schema and options
protected List<Name>	createTypeNames() Creates a set of qualified names corresponding to the types that the datastore provides.
void	dispose() Disposes of this data store and releases any resource that it is using.
boolean	supportsInPlaceWrite(String typeName)

Methods inherited from class ContentDataStore

createContentState, ensureEntry, ensureFeatureStore, entry, getDataStoreFactory, getEntry, getFeatureFactory, getFeatureReader, getFeatureSource, getFeatureSource, getFeatureSource, getFeatureSource, getFeatureTypeFactory, getFeatureWriter, getFeatureWriter, getFeatureWriterAppend, getFilterFactory, getGeometryFactory, getInfo, getLockingManager, getLogger, getNames, getNamespaceURI, getSchema, getSchema, getTypeNames, name, removeEntry, removeSchema, removeSchema, setDataStoreFactory, setFeatureFactory, setFeatureTypeFactory, setFilterFactory, setGeometryFactory, setNamespaceURI, updateSchema, updateSchema

Methods inherited from class Object

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

Constructor Detail

OGRDataStore

public OGRDataStore(String ogrName,
                    String ogrDriver,
                    URI namespace,
                    OGR ogr,
                    OGRDataSourcePool dataSourcePool)

OGRDataStore

public OGRDataStore(String ogrName,
                    String ogrDriver,
                    URI namespace,
                    OGR ogr)
             throws IOException

Throws:

IOException

Method Detail

createTypeNames

protected List<Name> createTypeNames()
                              throws IOException

Description copied from class: ContentDataStore

Creates a set of qualified names corresponding to the types that the datastore provides.

Namespaces may be left null for data stores which do not support namespace qualified type names.

Specified by:

createTypeNames in class ContentDataStore

Returns:

A list of Name.

Throws:

IOException - Any errors occuring connecting to data.

createFeatureSource

protected ContentFeatureSource createFeatureSource(ContentEntry entry)
                                            throws IOException

Description copied from class: ContentDataStore

Instantiates new feature source for the entry.

Subclasses should override this method to return a specific subclass of ContentFeatureSource.

Specified by:

createFeatureSource in class ContentDataStore

Parameters:

entry - The entry.

Returns:

An new instance of ContentFeatureSource for the entry.

Throws:

IOException

supportsInPlaceWrite

public boolean supportsInPlaceWrite(String typeName)
                             throws IOException

Throws:

IOException

createSchema

public void createSchema(SimpleFeatureType schema)
                  throws IOException

Description copied from class: ContentDataStore

Creates a new schema in the datastore.

This implementation throws aUnsupportedOperationException. Subclasses should override to support schema creation.

Specified by:

createSchema in interface DataAccess<SimpleFeatureType,SimpleFeature>

Overrides:

createSchema in class ContentDataStore

Parameters:

schema - FetureType to add to DataStore

Throws:

IOException - If featureType cannot be created

See Also:

DataAccess.createSchema(FeatureType)

createSchema

public void createSchema(SimpleFeatureType schema,
                         boolean approximateFields,
                         String[] options)
                  throws IOException

Creates a new OGR layer with provided schema and options

Parameters:

schema - the geotools schema

approximateFields - if true, OGR will try to create fields that are approximations of the required ones when an exact match cannt be provided

options - OGR data source/layer creation options

Throws:

IOException

createSchema

public void createSchema(SimpleFeatureCollection data,
                         boolean approximateFields,
                         String[] options)
                  throws IOException

Creates a new OGR layer with provided data and options. This call is specifically made available for the OGC store since for some data source types, such as GML or KML, it is not possible to call createSchema() independently from a write, as the result will not contain the schema definition without having data too. Also, in those formats, the output is writable only so as long as it's empty, it's not possible to write against an existing GML file for example.

Parameters:

data - The data to fill into the newly created layer

approximateFields - if true, OGR will try to create fields that are approximations of the required ones when an exact match cannt be provided

options - OGR data source/layer creation options

Throws:

IOException

dispose

public void dispose()

Description copied from interface: DataAccess

Disposes of this data store and releases any resource that it is using.

A DataStore cannot be used after dispose has been called, neither can any data access object it helped create, such as FeatureReader, FeatureSource or FeatureCollection.

This operation can be called more than once without side effects.

There is no thread safety assurance associated with this method. For example, client code will have to make sure this method is not called while retrieving/saving data from/to the storage, or be prepared for the consequences.

Specified by:

dispose in interface DataAccess<SimpleFeatureType,SimpleFeature>

Overrides:

dispose in class ContentDataStore