Class GeoParquetDataStoreFactory
- All Implemented Interfaces:
DataAccessFactory
,DataStoreFactorySpi
,Factory
This factory creates DataStore instances that can read and query GeoParquet format files, both local and remote. GeoParquet is an open format for geospatial data that builds on the Apache Parquet columnar storage format, providing efficient access to large geospatial datasets.
The implementation uses DuckDB and its extensions (spatial, parquet, httpfs) to handle the heavy lifting of reading and querying Parquet files. This provides excellent performance and compatibility with various storage backends including local files, HTTP/HTTPS, and S3.
Usage example:
Map<String, Object> params = new HashMap<>();
params.put("dbtype", "geoparquet");
params.put("uri", "file:/path/to/data.parquet");
DataStore store = DataStoreFinder.getDataStore(params);
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Nested Class Summary
Nested classes/interfaces inherited from interface DataAccessFactory
DataAccessFactory.Param
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Field Summary
FieldsModifier and TypeFieldDescriptionstatic final DataAccessFactory.Param
static final DataAccessFactory.Param
static final DataAccessFactory.Param
static final DataAccessFactory.Param
static final DataAccessFactory.Param
static final DataAccessFactory.Param
static final DataAccessFactory.Param
Fields inherited from class ForwardingDataStoreFactory
delegate
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptioncreateDataStore
(Map<String, ?> params) Construct a live data source using the params specifed.Methods inherited from class ForwardingDataStoreFactory
canProcess, createNewDataStore, getDescription, getDisplayName, getParametersInfo, isAvailable
Methods inherited from class Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods inherited from interface DataAccessFactory
canProcess, getDescription, getDisplayName, getParametersInfo, isAvailable
Methods inherited from interface DataStoreFactorySpi
createNewDataStore
Methods inherited from interface Factory
getImplementationHints
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Field Details
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DBTYPE
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NAMESPACE
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URI_PARAM
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MAX_HIVE_DEPTH
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FETCHSIZE
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SCREENMAP
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SIMPLIFY
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Constructor Details
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GeoParquetDataStoreFactory
public GeoParquetDataStoreFactory()
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Method Details
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createDataStore
Description copied from interface:DataStoreFactorySpi
Construct a live data source using the params specifed.You can think of this as setting up a connection to the back end data source.
Magic Params: the following params are magic and are honoured by convention by the GeoServer and uDig application.
- "user": is taken to be the user name
- "passwd": is taken to be the password
- "namespace": is taken to be the namespace prefix (and will be kept in sync with GeoServer namespace management.
- Specified by:
createDataStore
in interfaceDataAccessFactory
- Specified by:
createDataStore
in interfaceDataStoreFactorySpi
- Overrides:
createDataStore
in classForwardingDataStoreFactory<GeoParquetDataStoreFactoryDelegate>
- Parameters:
params
- The full set of information needed to construct a live data store. Typical key values for the map include: url - location of a resource, used by file reading datasources. dbtype - the type of the database to connect to, e.g. postgis, mysql- Returns:
- The created DataStore, 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:
IOException
- if there were any problems setting up (creating or connecting) the datasource.
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