public class DedupingInferencer extends NotifyingSailWrapper
An inferencer may infer the same statement from two different statements. This leads to that single inferred statement undergoing inferencing multiple times, and all the statements inferred from it too, etc. This is mainly due to the use of SailConnectionListeners which don't distinguish between adding a new statement and one that already exists. Adding this inferencer to a Sail stack prevents this problem and gives a significant performance increase.
Methods inherited from class org.eclipse.rdf4j.sail.helpers.NotifyingSailWrapper
addSailChangedListener, getBaseSail, removeSailChangedListener, setBaseSail
Methods inherited from class org.eclipse.rdf4j.sail.helpers.SailWrapper
getDataDir, getDefaultIsolationLevel, getSupportedIsolationLevels, getValueFactory, init, isWritable, setDataDir, setFederatedServiceResolver, shutDown, verifyBaseSailSet
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
getConnectionDescription copied from interface:
SailOpens a connection on the Sail which can be used to query and update data. Depending on how the implementation handles concurrent access, a call to this method might block when there is another open connection on this Sail.