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

Class Summary

Class	Description
AbstractEvaluationStrategyFactory	Abstract base class for ExtendedEvaluationStrategy.
BindingAssigner	Assigns values to variables based on a supplied set of bindings.
BindingAssigner.VarVisitor
BindingSetAssignmentInliner	Optimizes a query model by inlining BindingSetAssignment values where possible.
CompareOptimizer	A query optimizer that replaces Compare operators with SameTerms, if possible.
CompareOptimizer.CompareVisitor
ConjunctiveConstraintSplitter	Splits conjunctive constraints into seperate constraints.
ConjunctiveConstraintSplitter.ConstraintVisitor
ConstantOptimizer	A query optimizer that optimizes constant value expressions.
DisjunctiveConstraintOptimizer	A query optimizer that optimize disjunctive constraints on tuple expressions.
DisjunctiveConstraintOptimizer.OrSameTermOptimizer
EvaluationStatistics	Supplies various query model statistics to the query engine/optimizer.
EvaluationStatistics.CardinalityCalculator
EvaluationStrategyImpl	Deprecated since 4.0.
ExtendedEvaluationStrategy	SPARQL 1.1 extended query evaluation strategy.
ExtendedEvaluationStrategyFactory
ExternalSet	Deprecated since 3.0.
FilterOptimizer	Optimizes a query model by pushing Filters as far down in the model tree as possible.
FilterOptimizer.FilterFinder
FilterOptimizer.FilterRelocator
IterativeEvaluationOptimizer
IterativeEvaluationOptimizer.IEOVisitor
OrderLimitOptimizer	Moves the Order node above the Projection when variables are projected.
OrderLimitOptimizer.OrderOptimizer
ParentReferenceCleaner	Cleans up QueryModelNode.getParentNode() references that have become inconsistent with the actual algebra tree structure due to optimization operations.
QueryJoinOptimizer	A query optimizer that re-orders nested Joins.
QueryModelNormalizer	A query optimizer that (partially) normalizes query models to a canonical form.
QueryModelPruner	Deprecated Replaced by QueryModelNormalizer.
QueryModelPruner.TreeSanitizer
RegexAsStringFunctionOptimizer	A query optimizer that replaces REGEX with FunctionCalls that are equivalent operators
SameTermFilterOptimizer	A query optimizer that embeds Filters with SameTerm operators in statement patterns as much as possible.
SameTermFilterOptimizer.BindingSetAssignmentCollector
SameTermFilterOptimizer.SameTermFilterVisitor
SameTermFilterOptimizer.VarBinder
SameTermFilterOptimizer.VarRenamer
SimpleEvaluationStrategy	Deprecated renamed to StrictEvaluationStrategy.
StandardQueryOptimizerPipeline	A standard pipeline with the default QueryOptimizers that will be used by StrictEvaluationStrategy and its subclasses, unless specifically overridden.
StrictEvaluationStrategy	Minimally-conforming SPARQL 1.1 Query Evaluation strategy, to evaluate one TupleExpr on the given TripleSource, optionally using the given Dataset.
StrictEvaluationStrategyFactory
TupleFunctionEvaluationStatistics
TupleFunctionEvaluationStatistics.TupleFunctionCardinalityCalculator
TupleFunctionEvaluationStrategy	An EvaluationStrategy that has support for TupleFunctions.
UnionScopeChangeOptimizer	Inspect Union clauses to check if scope change can be avoided (allowing injection of pre-bound vars into union arguments).