Class StandardQueryOptimizerPipeline

java.lang.Object

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

All Implemented Interfaces:

QueryOptimizerPipeline

Direct Known Subclasses:

StandardQueryOptimizerPipeline

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.

See Also:

• EvaluationStrategyFactory.setOptimizerPipeline(QueryOptimizerPipeline)

Field Summary

Fields

Modifier and Type	Field	Description
private static boolean	assertsEnabled
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
private final EvaluationStatistics	evaluationStatistics
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
private final EvaluationStrategy	strategy
private final TripleSource	tripleSource
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 Object

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

Field Details

assertsEnabled

private static boolean assertsEnabled

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

evaluationStatistics

private final EvaluationStatistics evaluationStatistics

tripleSource

private final TripleSource tripleSource

strategy

private final EvaluationStrategy strategy

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