%extend OGRDataSourceShadow { // File: ogrdatasource_8cpp.xml %feature("docstring") CPL_CVSID "CPL_CVSID(\"$Id: ogrdatasource.cpp 23403 2011-11-20 21:01:21Z ajolma $\") "; %feature("docstring") Destroy "void OGR_DS_Destroy(OGRDataSourceH hDS) Closes opened datasource and releases allocated resources. This method is the same as the C++ method OGRDataSource::DestroyDataSource(). Parameters: ----------- hDataSource: handle to allocated datasource object. "; %feature("docstring") Reference "int OGR_DS_Reference(OGRDataSourceH hDataSource) "; %feature("docstring") Dereference "int OGR_DS_Dereference(OGRDataSourceH hDataSource) "; %feature("docstring") GetRefCount "int OGR_DS_GetRefCount(OGRDataSourceH hDataSource) "; %feature("docstring") GetSummaryRefCount "int OGR_DS_GetSummaryRefCount(OGRDataSourceH hDataSource) "; %feature("docstring") CreateLayer "OGRLayerH OGR_DS_CreateLayer(OGRDataSourceH hDS, const char *pszName, OGRSpatialReferenceH hSpatialRef, OGRwkbGeometryType eType, char **papszOptions) This function attempts to create a new layer on the data source with the indicated name, coordinate system, geometry type. The papszOptions argument can be used to control driver specific creation options. These options are normally documented in the format specific documentation. This function is the same as the C++ method OGRDataSource::CreateLayer(). Parameters: ----------- hDS: The dataset handle. pszName: the name for the new layer. This should ideally not match any existing layer on the datasource. hSpatialRef: handle to the coordinate system to use for the new layer, or NULL if no coordinate system is available. eType: the geometry type for the layer. Use wkbUnknown if there are no constraints on the types geometry to be written. papszOptions: a StringList of name=value options. Options are driver specific, and driver information can be found at the following url:http://www.gdal.org/ogr/ogr_formats.html NULL is returned on failure, or a new OGRLayer handle on success. Example: "; %feature("docstring") CopyLayer "OGRLayerH OGR_DS_CopyLayer(OGRDataSourceH hDS, OGRLayerH hSrcLayer, const char *pszNewName, char **papszOptions) Duplicate an existing layer. This function creates a new layer, duplicate the field definitions of the source layer and then duplicate each features of the source layer. The papszOptions argument can be used to control driver specific creation options. These options are normally documented in the format specific documentation. The source layer may come from another dataset. This function is the same as the C++ method OGRDataSource::CopyLayer Parameters: ----------- hDS: handle to the data source where to create the new layer hSrcLayer: handle to the source layer. pszNewName: the name of the layer to create. papszOptions: a StringList of name=value options. Options are driver specific. an handle to the layer, or NULL if an error occurs. "; %feature("docstring") DeleteLayer "OGRErr OGR_DS_DeleteLayer(OGRDataSourceH hDS, int iLayer) Delete the indicated layer from the datasource. If this method is supported the ODsCDeleteLayer capability will test TRUE on the OGRDataSource. This method is the same as the C++ method OGRDataSource::DeleteLayer(). Parameters: ----------- hDS: handle to the datasource iLayer: the index of the layer to delete. OGRERR_NONE on success, or OGRERR_UNSUPPORTED_OPERATION if deleting layers is not supported for this datasource. "; %feature("docstring") GetLayerByName "OGRLayerH OGR_DS_GetLayerByName(OGRDataSourceH hDS, const char *pszName) Fetch a layer by name. The returned layer remains owned by the OGRDataSource and should not be deleted by the application. This function is the same as the C++ method OGRDataSource::GetLayerByName(). Parameters: ----------- hDS: handle to the data source from which to get the layer. pszLayerName: Layer the layer name of the layer to fetch. an handle to the layer, or NULL if the layer is not found or an error occurs. "; %feature("docstring") OGRDataSourceParseSQLType "static OGRFieldType OGRDataSourceParseSQLType(char *pszType, int &nWidth, int &nPrecision) "; %feature("docstring") ExecuteSQL "OGRLayerH OGR_DS_ExecuteSQL(OGRDataSourceH hDS, const char *pszStatement, OGRGeometryH hSpatialFilter, const char *pszDialect) Execute an SQL statement against the data store. The result of an SQL query is either NULL for statements that are in error, or that have no results set, or an OGRLayer handle representing a results set from the query. Note that this OGRLayer is in addition to the layers in the data store and must be destroyed with OGR_DS_ReleaseResultSet() before the data source is closed (destroyed). For more information on the SQL dialect supported internally by OGR review theOGR SQL document. Some drivers (ie. Oracle and PostGIS) pass the SQL directly through to the underlying RDBMS. This function is the same as the C++ method OGRDataSource::ExecuteSQL(); Parameters: ----------- hDS: handle to the data source on which the SQL query is executed. pszSQLCommand: the SQL statement to execute. hSpatialFilter: handle to a geometry which represents a spatial filter. Can be NULL. pszDialect: allows control of the statement dialect. If set to NULL, the OGR SQL engine will be used, except for RDBMS drivers that will use their dedicated SQL engine, unless OGRSQL is explicitely passed as the dialect. an handle to a OGRLayer containing the results of the query. Deallocate with OGR_DS_ReleaseResultSet(). "; %feature("docstring") ReleaseResultSet "void OGR_DS_ReleaseResultSet(OGRDataSourceH hDS, OGRLayerH hLayer) Release results of OGR_DS_ExecuteSQL(). This function should only be used to deallocate OGRLayers resulting from an OGR_DS_ExecuteSQL() call on the same OGRDataSource. Failure to deallocate a results set before destroying the OGRDataSource may cause errors. This function is the same as the C++ method OGRDataSource::ReleaseResultSet(). Parameters: ----------- hDS: an handle to the data source on which was executed an SQL query. hLayer: handle to the result of a previous OGR_DS_ExecuteSQL() call. "; %feature("docstring") TestCapability "int OGR_DS_TestCapability(OGRDataSourceH hDS, const char *pszCap) Test if capability is available. One of the following data source capability names can be passed into this function, and a TRUE or FALSE value will be returned indicating whether or not the capability is available for this object. ODsCCreateLayer: True if this datasource can create new layers. The #define macro forms of the capability names should be used in preference to the strings themselves to avoid mispelling. This function is the same as the C++ method OGRDataSource::TestCapability(). Parameters: ----------- hDS: handle to the data source against which to test the capability. pszCapability: the capability to test. TRUE if capability available otherwise FALSE. "; %feature("docstring") GetLayerCount "int OGR_DS_GetLayerCount(OGRDataSourceH hDS) Get the number of layers in this data source. This function is the same as the C++ method OGRDataSource::GetLayerCount(). Parameters: ----------- hDS: handle to the data source from which to get the number of layers. layer count. "; %feature("docstring") GetLayer "OGRLayerH OGR_DS_GetLayer(OGRDataSourceH hDS, int iLayer) Fetch a layer by index. The returned layer remains owned by the OGRDataSource and should not be deleted by the application. This function is the same as the C++ method OGRDataSource::GetLayer(). Parameters: ----------- hDS: handle to the data source from which to get the layer. iLayer: a layer number between 0 and OGR_DS_GetLayerCount()-1. an handle to the layer, or NULL if iLayer is out of range or an error occurs. "; %feature("docstring") GetName "const char* OGR_DS_GetName(OGRDataSourceH hDS) Returns the name of the data source. This string should be sufficient to open the data source if passed to the same OGRSFDriver that this data source was opened with, but it need not be exactly the same string that was used to open the data source. Normally this is a filename. This function is the same as the C++ method OGRDataSource::GetName(). Parameters: ----------- hDS: handle to the data source to get the name from. pointer to an internal name string which should not be modified or freed by the caller. "; %feature("docstring") SyncToDisk "OGRErr OGR_DS_SyncToDisk(OGRDataSourceH hDS) Flush pending changes to disk. This call is intended to force the datasource to flush any pending writes to disk, and leave the disk file in a consistent state. It would not normally have any effect on read-only datasources. Some data sources do not implement this method, and will still return OGRERR_NONE. An error is only returned if an error occurs while attempting to flush to disk. The default implementation of this method just calls the SyncToDisk() method on each of the layers. Conceptionally, calling SyncToDisk() on a datasource should include any work that might be accomplished by calling SyncToDisk() on layers in that data source. In any event, you should always close any opened datasource with OGR_DS_Destroy() that will ensure all data is correctly flushed. This method is the same as the C++ method OGRDataSource::SyncToDisk() Parameters: ----------- hDS: handle to the data source OGRERR_NONE if no error occurs (even if nothing is done) or an error code. "; %feature("docstring") GetDriver "OGRSFDriverH OGR_DS_GetDriver(OGRDataSourceH hDS) Returns the driver that the dataset was opened with. This method is the same as the C++ method OGRDataSource::GetDriver() Parameters: ----------- hDS: handle to the datasource NULL if driver info is not available, or pointer to a driver owned by the OGRSFDriverManager. "; %feature("docstring") GetStyleTable "OGRStyleTableH OGR_DS_GetStyleTable(OGRDataSourceH hDS) "; %feature("docstring") SetStyleTableDirectly "void OGR_DS_SetStyleTableDirectly(OGRDataSourceH hDS, OGRStyleTableH hStyleTable) "; %feature("docstring") SetStyleTable "void OGR_DS_SetStyleTable(OGRDataSourceH hDS, OGRStyleTableH hStyleTable) "; }