All Classes

Class	Description
AbstractBelowDistinctTransformer	Transformer where the cardinality does matter for the current tree
AbstractIntensionalQueryMerger
AbstractIntensionalQueryMerger.QueryMergingTransformer	Replaces intensional data nodes by an IQTree Does NOT look for intensional data nodes inside the definitions
AbstractJoinTransferLJTransformer
AbstractJoinTransferLJTransformer.DataNodeAndReplacement
AbstractJoinTransferLJTransformer.RenamingAndEqualities
AbstractJoinTransferLJTransformer.ReplaceNodeByTrueTransformer
AbstractJoinTransferLJTransformer.SelectedNode
AbstractSelfJoinSimplifier<C extends FunctionalDependency>
AbstractSelfJoinSimplifier.DeterminantGroupEvaluation
AbstractSelfJoinSimplifier.NormalizationBeforeUnification
AbstractSelfJoinSimplifier.OptimizationState	If extensional data nodes are empty, insert an EmptyNode
AggregationSimplifier	Replaces type-sensitive SPARQL aggregation functional terms (e.g.
AggregationSimplifierImpl
AggregationSimplifierImpl.AggregationSimplifyingTransformer	Recursive
AggregationSplitter	Tries to push down the aggregation below some UNIONs
AggregationSplitterImpl
AggregationSplitterImpl.AggregationUnionLifterTransformer	Assumes that the tree is normalized
AggregationSplitterImpl.ChildGroup	Mutable
ArgumentTransferInnerJoinFDIQOptimizer	TODO: explain
ArgumentTransferInnerJoinFDIQOptimizer.ArgumentTransferJoinTransformer
ArgumentTransferInnerJoinFDIQOptimizer.SelfJoinFDSimplifier
AvoidJoinAboveUnionPlanner	When an UNION appears as a child of an inner join, looks for other siblings that could be "pushed under the union".
AvoidJoinAboveUnionPlanner.AvoidJoinAboveUnionTransformer
BooleanExpressionPushDownTransformer	Pushes down the expression as much as possible without creating new sub-queries (e.g.
BooleanExpressionPushDownTransformerImpl
BooleanExpressionPusher	Tries to push down the expression given.
BottomUpUnionAndBindingLiftOptimizer	TODO: explicit assumptions
CardinalityInsensitiveJoinTransferLJOptimizer
CardinalityInsensitiveJoinTransferLJOptimizer.CardinalityInsensitiveTransformer
CardinalitySensitiveJoinTransferLJOptimizer
CardinalitySensitiveJoinTransferLJOptimizer.Transformer
DefaultCompositeInnerJoinIQOptimizer
DefaultCompositeLeftJoinIQOptimizer
DefaultTermTypeTermVisitingTreeTransformer	Lifts meta term type definitions are blocked by unions.
DefinitionPushDownTransformer	Pushes down in the tree a new definition (for a new variable) until: 1.
DefinitionPushDownTransformerImpl
DummyQueryPlanner
EmptyRowsValuesNodeTransformer	Adds placeholder/fake data to Values Node in the edge case when empty rows are projected i.e.
EmptyRowsValuesNodeTransformerImpl
ExplicitEqualityTransformer
ExplicitEqualityTransformerImpl
FixedPointJoinLikeOptimizer
GeneralStructuralAndSemanticIQOptimizer	Performs all the structural and semantic optimizations TODO: find a better name
GeneralStructuralAndSemanticIQOptimizerImpl
InnerJoinIQOptimizer
IQOptimizer
JoinLikeOptimizer
LeftJoinIQOptimizer
LookForDistinctTransformerImpl	TODO: find a better name
LookForDistinctTransformerImpl.CardinalityFreeTransformerConstructor2
LookForDistinctTransformerImpl.CardinalityFreeTransformerConstructor3
OntopOptimizationConfiguration
OntopOptimizationConfiguration.Builder<B extends OntopOptimizationConfiguration.Builder<B>>
OntopOptimizationConfiguration.OntopOptimizationBuilderFragment<B extends OntopOptimizationConfiguration.Builder<B>>	TODO: add some configuration methods for end-users
OntopOptimizationConfigurationImpl
OntopOptimizationConfigurationImpl.AbstractOntopOptimizationBuilderMixin<B extends OntopOptimizationConfiguration.Builder<B>>
OntopOptimizationConfigurationImpl.BuilderImpl<B extends OntopOptimizationConfiguration.Builder<B>>
OntopOptimizationConfigurationImpl.DefaultOntopOptimizationBuilderFragment<B extends OntopOptimizationConfiguration.Builder<B>>
OntopOptimizationConfigurationImpl.OntopOptimizationOptions
OntopOptimizationModule
OntopOptimizationSettings
OntopOptimizationSettingsImpl
OntopViewUnfolder	Unfolds Ontop views of the highest level (among the views present in the tree)
OntopViewUnfolderImpl
OntopViewUnfolderImpl.MaxLevelViewUnfoldingTransformer
OptimizationSingletons	Helper for the ontop-optimization module See CoreSingletons for the motivation
OptimizationSingletonsImpl
OptimizerFactory	Accessible through Guice (recommended) or through OptimizationSingletons.
OrderBySimplifier	Replaces RDF(...) terms by DB ones in the ORDER BY conditions
OrderBySimplifierImpl
OrderBySimplifierImpl.ComparatorSimplification
OrderBySimplifierImpl.OrderBySimplifyingTransformer
PostProcessableFunctionLifter	Lifts certain functional terms that are blocked by a UNION: - non DBFunctionSymbols (e.g.
PostProcessableFunctionLifterImpl
PostProcessableFunctionLifterImpl.ChildDefinitionLift
PostProcessableFunctionLifterImpl.FunctionLifterTransformer
PostProcessableFunctionLifterImpl.LiftState
QueryPlanner	By contrast to structural and semantic optimizations, the query planner can explore decisions that "it might regret afterwards" in isolated branches.
RDFTypeDependentSimplifyingTransformer	TODO: find a better name
RedundantJoinFKOptimizer
RedundantJoinFKOptimizerImpl
RedundantJoinFKOptimizerImpl.RedundantJoinFKTransformer
RequiredExtensionalDataNodeExtractor
RequiredExtensionalDataNodeExtractor	Looks for extensional data nodes that are required to provide tuples.
RequiredExtensionalDataNodeExtractorImpl
SelfJoinSameTermIQOptimizer
SelfJoinSameTermIQOptimizerImpl
SelfJoinSameTermIQOptimizerImpl.SameTermSelfJoinTransformer	TODO: explain
SelfJoinSameTermIQOptimizerImpl.SerializableSupplier<T>
SelfJoinUCIQOptimizer
SelfJoinUCIQOptimizerImpl
SelfJoinUCIQOptimizerImpl.SelfJoinUCSimplifier
TermTypeTermLifter	Makes sure that terms with a MetaTermType only appears in the top construction node
TermTypeTermLifterImpl
TermTypeTermLiftTransformer	Makes sure that terms with a MetaTermType only appears in the top construction node
UnionAndBindingLiftOptimizer	Lifts bindings and unions
UnionBasedQueryMerger	Accessible through Guice (recommended) or through OptimizationSingletons.
UnionBasedQueryMergerImpl
UnionFlattener
UnionFlattenerImpl	Lifts unions above projections, until a fixed point is reached.