Package org.geotools.data.csv
Class CSVFeatureSource
Object
ContentFeatureSource
CSVFeatureSource
- All Implemented Interfaces:
FeatureSource<SimpleFeatureType,
,SimpleFeature> SimpleFeatureSource
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Field Summary
Fields inherited from class ContentFeatureSource
entry, hints, lock, query, queryCapabilities, schema, transaction
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Constructor Summary
ConstructorsConstructorDescriptionCSVFeatureSource
(CSVDataStore datastore) CSVFeatureSource
(CSVDataStore datastore, Query query) CSVFeatureSource
(ContentEntry entry) CSVFeatureSource
(ContentEntry entry, Query query) -
Method Summary
Modifier and TypeMethodDescriptionprotected SimpleFeatureType
Creates the feature type or schema for the feature source.protected ReferencedEnvelope
getBoundsInternal
(Query query) Calculates the bounds of a specified query.protected int
getCountInternal
(Query query) Calculates the number of features of a specified query.The datastore that this feature source originated from.protected FeatureReader<SimpleFeatureType,
SimpleFeature> getReaderInternal
(Query query) Subclass method for returning a native reader from the datastore.Methods inherited from class ContentFeatureSource
accepts, addFeatureListener, addHints, buildQueryCapabilities, canEvent, canFilter, canFilter, canLimit, canLimit, canLock, canOffset, canOffset, canReproject, canRetype, canRetype, canSort, canSort, canTransact, doLockInternal, doUnlockInternal, getAbsoluteSchema, getBounds, getBounds, getCount, getEntry, getFeatures, getFeatures, getFeatures, getInfo, getName, getQueryCapabilities, getReader, getReader, getReader, getSchema, getState, getSupportedHints, getTransaction, getView, getView, handleVisitor, isView, joinQuery, lockFeatures, lockFeatures, lockFeatures, processLock, removeFeatureListener, resolvePropertyNames, resolvePropertyNames, setFeatureLock, setTransaction, unLockFeatures, unLockFeatures, unLockFeatures
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Constructor Details
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CSVFeatureSource
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CSVFeatureSource
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CSVFeatureSource
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CSVFeatureSource
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Method Details
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getDataStore
Description copied from class:ContentFeatureSource
The datastore that this feature source originated from.Subclasses may wish to extend this method in order to type narrow its return type.
- Specified by:
getDataStore
in interfaceFeatureSource<SimpleFeatureType,
SimpleFeature> - Overrides:
getDataStore
in classContentFeatureSource
- Returns:
- the data source providing this
FeatureSource
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getBoundsInternal
Description copied from class:ContentFeatureSource
Calculates the bounds of a specified query. Subclasses must implement this method. If the computation is not fast, subclasses can returnnull
.- Specified by:
getBoundsInternal
in classContentFeatureSource
- Throws:
IOException
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getCountInternal
Description copied from class:ContentFeatureSource
Calculates the number of features of a specified query. Subclasses must implement this method. If the computation is not fast, it's possible to return -1.- Specified by:
getCountInternal
in classContentFeatureSource
- Throws:
IOException
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getReaderInternal
protected FeatureReader<SimpleFeatureType,SimpleFeature> getReaderInternal(Query query) throws IOException Description copied from class:ContentFeatureSource
Subclass method for returning a native reader from the datastore.It is important to note that if the native reader intends to handle any of the following natively:
- reprojection
- filtering
- max feature limiting
- sorting
- locking
- transactions
true
:ContentFeatureSource.canReproject()
- handlesQuery.getCoordinateSystemReproject()
internally. Example would be PostGIS using Proj to handle reproejction internallyContentFeatureSource.canFilter(Query)
- handlesinternally.</li> <li>{@link #canLimit(Query)} - handles {@link Query#getMaxFeatures()} and {@link Query#getStartIndex()} internally.</li> <li>{@link #canSort(Query)} - handles {@link Query#getSortBy()} natively.</li> <li>{@link #canRetype(Query)} - handles {@link Query#getProperties()} natively. Example would be only parsing the properties the user asks for from an XML file</li> <li>{@link #canLock()} - handles read-locks natively</li> <li>{@link #canTransact()} - handles transactions natively</li> </ul> </p>
- Specified by:
getReaderInternal
in classContentFeatureSource
- Throws:
IOException
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buildFeatureType
Description copied from class:ContentFeatureSource
Creates the feature type or schema for the feature source.Implementations should use
SimpleFeatureTypeBuilder
to build the feature type. Also, the builder should be injected with the feature factory which has been set on the DataStore (seeContentDataStore.getFeatureFactory()
. Example:SimpleFeatureTypeBuilder b = new SimpleFeatureTypeBuilder(); b.setFeatureTypeFactory( getDataStore().getFeatureTypeFactory() ); //build the feature type ...
- Specified by:
buildFeatureType
in classContentFeatureSource
- Throws:
IOException
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