Class MemoryFeatureStore
- All Implemented Interfaces:
FeatureLocking<SimpleFeatureType,
,SimpleFeature> FeatureSource<SimpleFeatureType,
,SimpleFeature> FeatureStore<SimpleFeatureType,
,SimpleFeature> SimpleFeatureLocking
,SimpleFeatureSource
,SimpleFeatureStore
-
Nested Class Summary
Nested classes/interfaces inherited from interface FeatureLocking
FeatureLocking.Response
-
Field Summary
Fields inherited from class ContentFeatureStore
ORIGINAL_FEATURE_KEY, WRITER_ADD, WRITER_COMMIT, WRITER_UPDATE
Fields inherited from class ContentFeatureSource
entry, hints, lock, query, queryCapabilities, schema, transaction
-
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionprotected SimpleFeatureType
Creates the feature type or schema for the feature source.protected QueryCapabilities
Builds the query capabilities for this 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.protected FeatureReader<SimpleFeatureType,
SimpleFeature> getReaderInternal
(Query query) Subclass method for returning a native reader from the datastore.getState()
The current state for the feature source.protected FeatureWriter<SimpleFeatureType,
SimpleFeature> getWriterInternal
(Query query, int flags) Subclass method for returning a native writer from the datastore.protected boolean
handleVisitor
(Query query, FeatureVisitor visitor) Subclass method which allows subclasses to natively handle a visitor.void
setTransaction
(Transaction transaction) Sets the current transaction the feature source is working against.Methods inherited from class ContentFeatureStore
addFeatures, addFeatures, getWriter, getWriter, getWriter, getWriter, modifyFeatures, modifyFeatures, modifyFeatures, modifyFeatures, modifyFeatures, modifyFeatures, removeFeatures, setFeatures
Methods inherited from class ContentFeatureSource
accepts, addFeatureListener, addHints, canEvent, canFilter, canFilter, canLimit, canLimit, canLock, canOffset, canOffset, canReproject, canRetype, canRetype, canSort, canSort, canTransact, doLockInternal, doUnlockInternal, getAbsoluteSchema, getBounds, getBounds, getCount, getDataStore, getEntry, getFeatures, getFeatures, getFeatures, getInfo, getName, getQueryCapabilities, getReader, getReader, getReader, getSchema, getSupportedHints, getTransaction, getView, getView, isView, joinQuery, lockFeatures, lockFeatures, lockFeatures, processLock, removeFeatureListener, resolvePropertyNames, resolvePropertyNames, setFeatureLock, unLockFeatures, unLockFeatures, unLockFeatures
Methods inherited from class Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods inherited from interface FeatureLocking
lockFeatures, lockFeatures, lockFeatures, setFeatureLock, unLockFeatures, unLockFeatures, unLockFeatures
Methods inherited from interface FeatureSource
addFeatureListener, getBounds, getBounds, getCount, getDataStore, getInfo, getName, getQueryCapabilities, getSchema, getSupportedHints, removeFeatureListener
Methods inherited from interface FeatureStore
getTransaction
Methods inherited from interface SimpleFeatureStore
getFeatures, getFeatures, getFeatures
-
Constructor Details
-
MemoryFeatureStore
-
-
Method Details
-
getState
Description copied from class:ContentFeatureSource
The current state for the feature source.This value is derived from current transaction of the feature source.
- Overrides:
getState
in classContentFeatureSource
-
getWriterInternal
protected FeatureWriter<SimpleFeatureType,SimpleFeature> getWriterInternal(Query query, int flags) throws IOException Description copied from class:ContentFeatureStore
Subclass method for returning a native writer from the datastore.It is important to note that if the native writer intends to handle any of the following natively:
- reprojection
- filtering
- events
- max feature limiting
- sorting
- locking
true
:- Specified by:
getWriterInternal
in classContentFeatureStore
- Parameters:
query
- Queryflags
- SeeContentFeatureStore.WRITER_ADD
andContentFeatureStore.WRITER_UPDATE
- Throws:
IOException
-
setTransaction
Description copied from class:ContentFeatureSource
Sets the current transaction the feature source is working against.transaction may be
null
. This signifies that the auto-commit transaction is used:Transaction.AUTO_COMMIT
.- Specified by:
setTransaction
in interfaceFeatureStore<SimpleFeatureType,
SimpleFeature> - Overrides:
setTransaction
in classContentFeatureSource
- Parameters:
transaction
- The new transaction, ornull
.
-
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
-
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
-
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
-
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
-
handleVisitor
Description copied from class:ContentFeatureSource
Subclass method which allows subclasses to natively handle a visitor.Subclasses would override this method and return true in cases where the specific visitor could be handled without iterating over the entire result set of query. An example would be handling visitors that calculate aggregate values.
- Overrides:
handleVisitor
in classContentFeatureSource
- Parameters:
query
- The query being made.visitor
- The visitor to- Returns:
- true if the visitor can be handled natively, otherwise false.
- Throws:
IOException
-
buildQueryCapabilities
Description copied from class:ContentFeatureSource
Builds the query capabilities for this feature source. The default implementation returns a newly built QueryCapabilities, subclasses are advised to build their own.- Overrides:
buildQueryCapabilities
in classContentFeatureSource
-