Uses of Class org.eclipse.rdf4j.query.algebra.helpers.AbstractQueryModelVisitor (Eclipse RDF4J 3.1.0 API)

Packages that use AbstractQueryModelVisitor
Package	Description
org.eclipse.rdf4j.federated.optimizer
org.eclipse.rdf4j.query.algebra.evaluation.impl
org.eclipse.rdf4j.query.algebra.helpers
org.eclipse.rdf4j.query.parser.sparql	The rdf4j SPARQL 1.1 parser.
org.eclipse.rdf4j.queryrender	This package contains classes for working with RDF4J query objects.
org.eclipse.rdf4j.queryrender.sparql
org.eclipse.rdf4j.sail.federation.optimizers

Subclasses of AbstractQueryModelVisitor in org.eclipse.rdf4j.federated.optimizer
Modifier and Type	Class and Description
`class`	`ExclusiveTupleExprOptimizer` A specialized optimizer which identifies and marks `ExclusiveTupleExpr`.
`class`	`FilterOptimizer` Filter optimizer to push down FILTER expressions as far as possible.
`protected static class`	`FilterOptimizer.FilterExprInsertVisitor`
`protected static class`	`FilterOptimizer.VarFinder`
`class`	`GenericInfoOptimizer` Generic optimizer Tasks: - Collect information (hasUnion, hasFilter, hasService) - Collect all statements in a list (for source selection), do not collect SERVICE expressions - Collect all Join arguments and group them in the NJoin structure for easier optimization (flatten)
`class`	`LimitOptimizer` An optimizer that attempts to push upper limits into BGPs of the query.
`class`	`ServiceOptimizer` Optimizer for SERVICE nodes.
`class`	`StatementGroupAndJoinOptimizer` Optimizer with the following tasks: 1.
`class`	`UnionOptimizer` Optimizer to flatten the UNION operations.

Subclasses of AbstractQueryModelVisitor in org.eclipse.rdf4j.query.algebra.evaluation.impl
Modifier and Type	Class and Description
`protected static class`	`BindingAssigner.VarVisitor`
`protected static class`	`CompareOptimizer.CompareVisitor`
`protected static class`	`ConjunctiveConstraintSplitter.ConstraintVisitor`
`protected class`	`ConstantOptimizer.ConstantVisitor`
`protected class`	`ConstantOptimizer.VarNameCollector`
`protected static class`	`DisjunctiveConstraintOptimizer.OrSameTermOptimizer`
`protected static class`	`EvaluationStatistics.CardinalityCalculator`
`protected static class`	`FilterOptimizer.FilterFinder`
`protected static class`	`FilterOptimizer.FilterRelocator`
`protected static class`	`IterativeEvaluationOptimizer.IEOVisitor`
`protected static class`	`OrderLimitOptimizer.OrderOptimizer`
`protected class`	`QueryJoinOptimizer.JoinVisitor`
`class`	`QueryModelNormalizer` A query optimizer that (partially) normalizes query models to a canonical form.
`protected static class`	`QueryModelPruner.TreeSanitizer` Deprecated.
`protected class`	`RegexAsStringFunctionOptimizer.RegexAsStringFunctionVisitor`
`protected static class`	`SameTermFilterOptimizer.BindingSetAssignmentCollector`
`protected static class`	`SameTermFilterOptimizer.SameTermFilterVisitor`
`protected static class`	`SameTermFilterOptimizer.VarBinder`
`protected static class`	`SameTermFilterOptimizer.VarRenamer`
`protected static class`	`TupleFunctionEvaluationStatistics.TupleFunctionCardinalityCalculator`

Subclasses of AbstractQueryModelVisitor in org.eclipse.rdf4j.query.algebra.helpers
Modifier and Type	Class and Description
`class`	`BGPCollector<X extends Exception>` Basic graph pattern collector.
`class`	`QueryModelNodeReplacer` Deprecated.
`class`	`QueryModelTreePrinter` QueryModelVisitor implementation that "prints" a tree representation of a query model.
`class`	`QueryModelVisitorBase<X extends Exception>` Deprecated. since 2.0. Use `AbstractQueryModelVisitor` instead.
`class`	`StatementPatternCollector` A QueryModelVisitor that collects StatementPattern's from a query model.
`class`	`VarNameCollector` A QueryModelVisitor that collects the names of (non-constant) variables that are used in a query model.

Subclasses of AbstractQueryModelVisitor in org.eclipse.rdf4j.query.parser.sparql
Modifier and Type	Class and Description
`protected class`	`TupleExprBuilder.SameTermCollector` Deprecated.
`protected class`	`TupleExprBuilder.VarCollector` Deprecated.

Subclasses of AbstractQueryModelVisitor in org.eclipse.rdf4j.queryrender
Modifier and Type	Class and Description
`class`	`BaseTupleExprRenderer` Base class for rendering RDF4J query API objects into strings.

Subclasses of AbstractQueryModelVisitor in org.eclipse.rdf4j.queryrender.sparql
Modifier and Type	Class and Description
`class`	`ContextCollector` Visitor implementation for the query algebra which walks the tree and figures out the context for nodes in the algebra.
`class`	`SparqlTupleExprRenderer` Extends the BaseTupleExprRenderer to provide support for rendering tuple expressions as SPARQL queries.

Subclasses of AbstractQueryModelVisitor in org.eclipse.rdf4j.sail.federation.optimizers
Modifier and Type	Class and Description
`class`	`EmptyPatternOptimizer` Remove StatementPatterns that have no statements.
`class`	`FederationJoinOptimizer` Deprecated. since 3.1.0. This module will be replaced by the new FedX federation module.
`class`	`OwnedTupleExprPruner` Remove redundant `OwnedTupleExpr`.
`class`	`PrepareOwnedTupleExpr` Remove redundant `OwnedTupleExpr`.
`protected class`	`QueryMultiJoinOptimizer.JoinVisitor`

Uses of Classorg.eclipse.rdf4j.query.algebra.helpers.AbstractQueryModelVisitor