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

Class StandardQueryOptimizerPipeline

java.lang.Object

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

All Implemented Interfaces:

QueryOptimizerPipeline

public class StandardQueryOptimizerPipeline
extends Object
implements QueryOptimizerPipeline

A standard pipeline with the default QueryOptimizers that will be used by StrictEvaluationStrategy and its subclasses, unless specifically overridden.

Author:

Jeen Broekstra

See Also:

• EvaluationStrategyFactory.setOptimizerPipeline(QueryOptimizerPipeline)

Field Summary

Fields

Modifier and Type	Field	Description
static final BindingAssignerOptimizer	BINDING_ASSIGNER
static final BindingSetAssignmentInlinerOptimizer	BINDING_SET_ASSIGNMENT_INLINER
static final CompareOptimizer	COMPARE_OPTIMIZER
static final ConjunctiveConstraintSplitterOptimizer	CONJUNCTIVE_CONSTRAINT_SPLITTER
static final DisjunctiveConstraintOptimizer	DISJUNCTIVE_CONSTRAINT_OPTIMIZER
static final FilterOptimizer	FILTER_OPTIMIZER
static final IterativeEvaluationOptimizer	ITERATIVE_EVALUATION_OPTIMIZER
static final OrderLimitOptimizer	ORDER_LIMIT_OPTIMIZER
static final ParentReferenceCleaner	PARENT_REFERENCE_CLEANER
static final ProjectionRemovalOptimizer	PROJECTION_REMOVAL_OPTIMIZER
static final QueryModelNormalizerOptimizer	QUERY_MODEL_NORMALIZER
static final SameTermFilterOptimizer	SAME_TERM_FILTER_OPTIMIZER
static final UnionScopeChangeOptimizer	UNION_SCOPE_CHANGE_OPTIMIZER

Constructor Summary

Constructors

Constructor	Description
StandardQueryOptimizerPipeline(EvaluationStrategy strategy, TripleSource tripleSource, EvaluationStatistics evaluationStatistics)

Method Summary

Modifier and Type	Method	Description
Iterable<QueryOptimizer>	getOptimizers()	Get the optimizers that make up this pipeline.

Methods inherited from class java.lang.Object

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

Field Details

BINDING_ASSIGNER

public static final BindingAssignerOptimizer BINDING_ASSIGNER

BINDING_SET_ASSIGNMENT_INLINER

public static final BindingSetAssignmentInlinerOptimizer BINDING_SET_ASSIGNMENT_INLINER

COMPARE_OPTIMIZER

public static final CompareOptimizer COMPARE_OPTIMIZER

CONJUNCTIVE_CONSTRAINT_SPLITTER

public static final ConjunctiveConstraintSplitterOptimizer CONJUNCTIVE_CONSTRAINT_SPLITTER

DISJUNCTIVE_CONSTRAINT_OPTIMIZER

public static final DisjunctiveConstraintOptimizer DISJUNCTIVE_CONSTRAINT_OPTIMIZER

SAME_TERM_FILTER_OPTIMIZER

public static final SameTermFilterOptimizer SAME_TERM_FILTER_OPTIMIZER

UNION_SCOPE_CHANGE_OPTIMIZER

public static final UnionScopeChangeOptimizer UNION_SCOPE_CHANGE_OPTIMIZER

QUERY_MODEL_NORMALIZER

public static final QueryModelNormalizerOptimizer QUERY_MODEL_NORMALIZER

PROJECTION_REMOVAL_OPTIMIZER

public static final ProjectionRemovalOptimizer PROJECTION_REMOVAL_OPTIMIZER

ITERATIVE_EVALUATION_OPTIMIZER

public static final IterativeEvaluationOptimizer ITERATIVE_EVALUATION_OPTIMIZER

FILTER_OPTIMIZER

public static final FilterOptimizer FILTER_OPTIMIZER

ORDER_LIMIT_OPTIMIZER

public static final OrderLimitOptimizer ORDER_LIMIT_OPTIMIZER

PARENT_REFERENCE_CLEANER

public static final ParentReferenceCleaner PARENT_REFERENCE_CLEANER

Constructor Details

StandardQueryOptimizerPipeline

public StandardQueryOptimizerPipeline(EvaluationStrategy strategy,
 TripleSource tripleSource,
 EvaluationStatistics evaluationStatistics)

Method Details

getOptimizers

public Iterable<QueryOptimizer> getOptimizers()

Description copied from interface: QueryOptimizerPipeline

Get the optimizers that make up this pipeline.

Specified by:

getOptimizers in interface QueryOptimizerPipeline

Returns:

an Iterable of QueryOptimizers