- All Implemented Interfaces:
- FederatedServiceResolverClient, NotifyingSail, Sail, StackableSail
public class DedupingInferencer
extends org.eclipse.rdf4j.sail.helpers.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.