Package org.eclipse.rdf4j.query.algebra.evaluation.impl

Class DisjunctiveConstraintOptimizer

java.lang.Object

org.eclipse.rdf4j.query.algebra.evaluation.optimizer.DisjunctiveConstraintOptimizer

org.eclipse.rdf4j.query.algebra.evaluation.impl.DisjunctiveConstraintOptimizer

All Implemented Interfaces:

QueryOptimizer

@Deprecated(forRemoval=true,
            since="4.1.0")
public class DisjunctiveConstraintOptimizer
extends DisjunctiveConstraintOptimizer
implements QueryOptimizer

Deprecated, for removal: This API element is subject to removal in a future version.

since 4.1.0. Use DisjunctiveConstraintOptimizer instead.

A query optimizer that optimize disjunctive constraints on tuple expressions. Currently, this optimizer unions a clone of the underlying tuple expression with the original expression for each SameTerm operator, moving the SameTerm to the cloned tuple expression.

Author:

Arjohn Kampman, James Leigh

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	DisjunctiveConstraintOptimizer.OrSameTermOptimizer	Deprecated, for removal: This API element is subject to removal in a future version.

Constructor Summary

Constructors

Constructor	Description
DisjunctiveConstraintOptimizer()	Deprecated, for removal: This API element is subject to removal in a future version.

Method Summary

Methods inherited from class org.eclipse.rdf4j.query.algebra.evaluation.optimizer.DisjunctiveConstraintOptimizer

optimize

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.eclipse.rdf4j.query.algebra.evaluation.QueryOptimizer

optimize

Constructor Details

DisjunctiveConstraintOptimizer

public DisjunctiveConstraintOptimizer()

Deprecated, for removal: This API element is subject to removal in a future version.