Class SameTermFilterOptimizer
java.lang.Object
org.eclipse.rdf4j.query.algebra.evaluation.optimizer.SameTermFilterOptimizer
- All Implemented Interfaces:
QueryOptimizer
A query optimizer that embeds ) are processed by assigning the URI to all occurring variables with name X.
Filter
s 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,
- Author:
- Arjohn Kampman, James Leigh
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoid
optimize
(TupleExpr tupleExpr, Dataset dataset, BindingSet bindings) Applies generally applicable optimizations to the supplied query: variable assignments are inlined.
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Constructor Details
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SameTermFilterOptimizer
public SameTermFilterOptimizer()
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Method Details
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optimize
Applies generally applicable optimizations to the supplied query: variable assignments are inlined.- Specified by:
optimize
in interfaceQueryOptimizer
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