Class SameTermFilterOptimizer

java.lang.Object
org.eclipse.rdf4j.query.algebra.evaluation.optimizer.SameTermFilterOptimizer
All Implemented Interfaces:
QueryOptimizer

public class SameTermFilterOptimizer extends Object implements QueryOptimizer
A query optimizer that embeds Filters with SameTerm operators in statement patterns as much as possible. Operators like sameTerm(X, Y) are processed by renaming X to Y (or vice versa). Operators like sameTerm(X, ) are processed by assigning the URI to all occurring variables with name X.
Author:
Arjohn Kampman, James Leigh