## Uses of Interface
org.eclipse.rdf4j.query.algebra.QueryModelVisitor

- Packages that use QueryModelVisitor
  Package | Description
  --- | ---
  org.eclipse.rdf4j.federated.algebra |
  org.eclipse.rdf4j.federated.optimizer |
  org.eclipse.rdf4j.query.algebra | Abstract Query Algebra model.
  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.algebra |
  org.eclipse.rdf4j.sail.federation.optimizers |

- - ### Uses of QueryModelVisitor in org.eclipse.rdf4j.federated.algebra

    Methods in org.eclipse.rdf4j.federated.algebra with parameters of type QueryModelVisitor
    Modifier and Type | Method and Description
    --- | ---
    `<X extends Exception> void` | EmptyStatementPattern.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | FedXStatementPattern.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | BoundFiltersNode.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | StatementSource.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | ConjunctiveFilterExpr.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | FilterExpr.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | CheckStatementPattern.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | ExclusiveGroup.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | NUnion.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | NTuple.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | NJoin.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | SingleSourceQuery.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | FedXService.`visit(QueryModelVisitor<X> visitor)`
    `static <X extends Exception> void` | BoundFiltersNode.`visit(QueryModelVisitor<X> visitor, BindingSet boundFilters)`
    `<X extends Exception> void` | FedXStatementPattern.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | ConjunctiveFilterExpr.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | FilterExpr.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | CheckStatementPattern.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | ExclusiveGroup.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | NTuple.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | SingleSourceQuery.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | FedXService.`visitChildren(QueryModelVisitor<X> visitor)`

  - ### Uses of QueryModelVisitor in org.eclipse.rdf4j.federated.optimizer

    Classes in org.eclipse.rdf4j.federated.optimizer that implement QueryModelVisitor
    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.

  - ### Uses of QueryModelVisitor in org.eclipse.rdf4j.query.algebra

    Methods in org.eclipse.rdf4j.query.algebra with parameters of type QueryModelVisitor
    Modifier and Type | Method and Description
    --- | ---
    `<X extends Exception> void` | TupleFunctionCall.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | ValueExprTripleRef.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | TripleRef.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | ZeroLengthPath.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Var.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | ListMemberOperator.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Union.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Sum.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Str.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Slice.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | SingletonSet.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Service.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Sample.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | SameTerm.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Regex.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Reduced.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | ProjectionElemList.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | ProjectionElem.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Projection.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | OrderElem.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Order.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Or.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Not.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Namespace.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | MultiProjection.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Move.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Modify.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Min.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Max.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | MathExpr.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | LocalName.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Load.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Like.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | LeftJoin.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | LangMatches.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Lang.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Label.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Join.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | IsURI.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | IsResource.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | IsNumeric.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | IsLiteral.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | IsBNode.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | IRIFunction.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Intersection.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | InsertData.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | In.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | If.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | GroupElem.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | GroupConcat.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Group.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | FunctionCall.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Filter.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | ExtensionElem.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Extension.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Exists.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | EmptySet.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Distinct.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Difference.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | DeleteData.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Datatype.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Count.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Copy.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | DescribeOperator.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | CompareAny.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | CompareAll.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Compare.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Coalesce.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Clear.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Bound.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | BNodeGenerator.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | BindingSetAssignment.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Avg.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | ArbitraryLengthPath.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | StatementPattern.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | And.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Add.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | QueryRoot.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | ValueConstant.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | QueryModelNode.`visit(QueryModelVisitor<X> visitor)` Visits this node.
    `<X extends Exception> void` | Create.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | TupleFunctionCall.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | ValueExprTripleRef.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | TripleRef.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | ZeroLengthPath.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Service.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Regex.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | ProjectionElemList.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Projection.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | OrderElem.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Order.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | MultiProjection.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Move.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Modify.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Load.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | LeftJoin.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | If.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | GroupElem.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Group.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | FunctionCall.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Filter.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | ExtensionElem.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Extension.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | BinaryTupleOperator.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Copy.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | SubQueryValueOperator.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | CompareSubQueryValueOperator.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | NAryValueOperator.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Clear.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Bound.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | UnaryValueOperator.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | ArbitraryLengthPath.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | StatementPattern.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | BinaryValueOperator.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | Add.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | UnaryTupleOperator.`visitChildren(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | QueryModelNode.`visitChildren(QueryModelVisitor<X> visitor)` Visits the children of this node.
    `<X extends Exception> void` | AbstractQueryModelNode.`visitChildren(QueryModelVisitor<X> visitor)` Dummy implementation of `QueryModelNode.visitChildren(org.eclipse.rdf4j.query.algebra.QueryModelVisitor<X>)` that does nothing.
    `<X extends Exception> void` | Create.`visitChildren(QueryModelVisitor<X> visitor)`

  - ### Uses of QueryModelVisitor in org.eclipse.rdf4j.query.algebra.evaluation.impl

    Classes in org.eclipse.rdf4j.query.algebra.evaluation.impl that implement QueryModelVisitor
    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` Deprecated. This class is protected for historic reasons only, and will be made private in a future major release.
    `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`

    Methods in org.eclipse.rdf4j.query.algebra.evaluation.impl with parameters of type QueryModelVisitor
    Modifier and Type | Method and Description
    --- | ---
    `<X extends Exception> void` | ExternalSet.`visit(QueryModelVisitor<X> visitor)` Deprecated.

  - ### Uses of QueryModelVisitor in org.eclipse.rdf4j.query.algebra.helpers

    Classes in org.eclipse.rdf4j.query.algebra.helpers that implement QueryModelVisitor
    Modifier and Type | Class and Description
    --- | ---
    `class` | `AbstractQueryModelVisitor<X extends Exception>` Base class for `QueryModelVisitor`s.
    `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` | `QueryModelTreeToGenericPlanNode` Convert TupleExpr (QueryModelNode) to GenericPlanNode for the Query.explain(...) feature.
    `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.

    Constructors in org.eclipse.rdf4j.query.algebra.helpers with parameters of type QueryModelVisitor
    Constructor and Description
    `BGPCollector(QueryModelVisitor<X> visitor)`

  - ### Uses of QueryModelVisitor in org.eclipse.rdf4j.query.parser.sparql

    Classes in org.eclipse.rdf4j.query.parser.sparql that implement QueryModelVisitor
    Modifier and Type | Class and Description
    --- | ---
    `class` | `TripleRefCollector`
    `protected class` | `TupleExprBuilder.SameTermCollector` Deprecated.
    `protected class` | `TupleExprBuilder.VarCollector` Deprecated.

  - ### Uses of QueryModelVisitor in org.eclipse.rdf4j.queryrender

    Classes in org.eclipse.rdf4j.queryrender that implement QueryModelVisitor
    Modifier and Type | Class and Description
    --- | ---
    `class` | `BaseTupleExprRenderer` Base class for rendering RDF4J query API objects into strings.

  - ### Uses of QueryModelVisitor in org.eclipse.rdf4j.queryrender.sparql

    Classes in org.eclipse.rdf4j.queryrender.sparql that implement QueryModelVisitor
    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.

  - ### Uses of QueryModelVisitor in org.eclipse.rdf4j.sail.federation.algebra

    Methods in org.eclipse.rdf4j.sail.federation.algebra with parameters of type QueryModelVisitor
    Modifier and Type | Method and Description
    --- | ---
    `<X extends Exception> void` | OwnedTupleExpr.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | NaryJoin.`visit(QueryModelVisitor<X> visitor)`
    `<X extends Exception> void` | AbstractNaryOperator.`visitChildren(QueryModelVisitor<X> visitor)`

  - ### Uses of QueryModelVisitor in org.eclipse.rdf4j.sail.federation.optimizers

    Classes in org.eclipse.rdf4j.sail.federation.optimizers that implement QueryModelVisitor
    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`

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