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

Class CompareOptimizer

java.lang.Object

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

All Implemented Interfaces:

QueryOptimizer

Direct Known Subclasses:

CompareOptimizer

public class CompareOptimizer
extends Object
implements QueryOptimizer

A query optimizer that replaces Compare operators with SameTerms, if possible.

Author:

Arjohn Kampman

Constructor Summary

Constructors

Constructor	Description
CompareOptimizer()

Method Summary

Modifier and Type	Method	Description
void	optimize(TupleExpr tupleExpr, Dataset dataset, BindingSet bindings)	Applies generally applicable optimizations to the supplied query: variable assignments are inlined.

Methods inherited from class java.lang.Object

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

Constructor Details

CompareOptimizer

public CompareOptimizer()

Method Details

optimize

public void optimize(TupleExpr tupleExpr,
 Dataset dataset,
 BindingSet bindings)

Applies generally applicable optimizations to the supplied query: variable assignments are inlined.

Specified by:

optimize in interface QueryOptimizer