org.eclipse.rdf4j.query.algebra.evaluation.util

Class QueryOptimizerList

java.lang.Object

org.eclipse.rdf4j.query.algebra.evaluation.util.QueryOptimizerList

All Implemented Interfaces:

QueryOptimizer

public class QueryOptimizerList
extends Object
implements QueryOptimizer

A query optimizer that contains a list of other query optimizers, which are called consecutively when the list's optimize(TupleExpr, Dataset, BindingSet) method is called.

Author:

Arjohn Kampman

Field Summary

Fields

Modifier and Type	Field and Description
protected List<QueryOptimizer>	optimizers

Constructor Summary

Constructors

Constructor and Description
QueryOptimizerList()
QueryOptimizerList(List<QueryOptimizer> optimizers)
QueryOptimizerList(QueryOptimizer... optimizers)

Method Summary

Modifier and Type	Method and Description
void	add(QueryOptimizer optimizer)
void	optimize(TupleExpr tupleExpr, Dataset dataset, BindingSet bindings)

Methods inherited from class java.lang.Object

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

Field Detail

optimizers

protected List<QueryOptimizer> optimizers

Constructor Detail

QueryOptimizerList

public QueryOptimizerList()

QueryOptimizerList

public QueryOptimizerList(List<QueryOptimizer> optimizers)

QueryOptimizerList

public QueryOptimizerList(QueryOptimizer... optimizers)

Method Detail

add

public void add(QueryOptimizer optimizer)

optimize

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

Specified by:

optimize in interface QueryOptimizer