Uses of Interface
org.eclipse.rdf4j.query.algebra.VariableScopeChange
Package
Description
Abstract Query Algebra model.
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Uses of VariableScopeChange in org.eclipse.rdf4j.federated.algebra
Modifier and TypeClassDescriptionclass
AQueryModelNode
for printing the bound filter vars (e.g.class
ConjunctiveFilterExpr maintains a list of conjunctive (i.e.class
Algebra construct representing an empty join.class
Algebra construct representing an empty union.class
EmptyStatementPattern represents a statement that cannot produce any results for the registered endpoints.class
AnArbitraryLengthPath
node which can be evaluated at a single node.class
Represents a group ofExclusiveTupleExpr
that can only produce results at a single endpoint, theStatementSource
.class
Represents a StatementPattern that can only produce results at a single endpoint, the owner.class
SpecializedDescribeOperator
Node for maintainingQueryInfo
.class
A specialization ofArbitraryLengthPath
to maintain theQueryInfo
class
class
class
Base class providing all common functionality for FedX StatementPatternsclass
A specialization ofZeroLengthPath
that keeps track ofQueryInfo
and statement sources.class
FilterExpr maintains information for a particular FILTER expression.class
An artificial holder node serving as parent holder to allow replacement.class
A tuple expression that represents an nary-Join.class
Base class for any nary-tuple expressionclass
A tuple expression that represents an nary-Union.class
MarkerTupleExpr
that is used fromFedXTupleQuery.evaluate(TupleQueryResultHandler)
to allow for passing through of results to the handler.class
Node representing a precompiled query.class
A query which has a single relevant source.class
A structure representing a relevant source for some expression.class
Represents statements that can produce results at a some particular endpoints, the statement sources.class
A TrueStatementPattern represents a stmt with no free variables which in addition is available at one of the provided sources. -
Uses of VariableScopeChange in org.eclipse.rdf4j.query.algebra
Modifier and TypeClassDescriptionclass
Base class for shared functionality of aggregate operators (e.g.class
Base implementation ofQueryModelNode
.class
class
CustomAggregateOperator
function call that can be defined to take an argument and can apply distinct filtering on it.class
A boolean AND operator operating on two boolean expressions.class
A tuple expression that matches a path of arbitrary length against an RDF graph.class
The AVG operator as defined in http://www.w3.org/TR/sparql11-query/#aggregates.class
An abstract superclass for binary tuple operators which, by definition, has two arguments.class
An abstract superclass for binary value operators which, by definition, has two arguments.class
class
A BNode generator, which generates a new BNode each time it needs to supply a value.class
The BOUND function, as defined in SPARQL Query Language for RDF; checks if a variable is bound.class
class
class
A comparison between two values.class
class
class
class
class
class
class
The DATATYPE function, as defined in SPARQL Query Language for RDF.class
class
class
The MINUS set operator, which returns the result of the left tuple expression, except for the results that are also returned by the right tuple expression.class
class
A tuple expression that contains zero solutions.class
Checks whether the wrapped Query produces any results.class
An extension operator that can be used to add bindings to solutions whose values are defined byvalue expressions
.class
class
The FILTER operator, as defined in SPARQL Query Language for RDF.class
A call to an (external) function that operates on zero or more arguments.class
A tuple operator that groups tuples that have a specific set of equivalent variable bindings, and that can apply aggregate functions on the grouped results.class
The GROUP_CONCAT operator as defined in http://www.w3.org/TR/sparql11-query/#aggregatesclass
A tuple operator that groups tuples that have a specific set of equivalent variable bindings, and that can apply aggregate functions on the grouped results.class
The IF function, as defined in SPARQL 1.1 Query.class
Checks whether a certain value is contained in a set of results produced by a query.class
class
The INTERSECT set operator, which returns the intersection of the result sets of two tuple expressions.class
The IRI function, as defined in SPARQL 1.1 Query Language for RDF.class
class
class
IsNumeric - Boolean operator determining if the supplied expression represents a numeric value.class
class
class
A natural join between two tuple expressions.class
The LABEL function, which selects the label of literals.class
The LANG function, as defined in SPARQL Query Language for RDF.class
Checks whether a language tag (e.g.class
The LeftJoin operator, as defined in SPARQL Query Language for RDF.class
ValueOperator that verifies if the first of its arguments occurs in any of the subsequent arguments.class
class
The LOCAL NAME function, which selects the local name of URIs.class
A mathematical expression consisting an operator and two arguments.class
class
class
class
class
A "multi-projection" that can produce multiple solutions from a single set of bindings.class
The NAMESPACE function, which selects the namespace of URIs.class
An abstract superclass for N-ary value operators.class
A boolean NOT operator operating on a boolean expressions.class
A boolean OR operator operating on two boolean expressions.class
An order operator that can be used to order bindings as specified by a set of value expressions.class
class
A generalized projection (allowing the bindings to be renamed) on a tuple expression.class
Projection elements control which of the selected expressions (produced by the WHERE clause of a query) are returned in the solution, and the order in which they appear.class
class
A semantics-less query model node that is used as the root of query model trees.class
class
Compares the string representation of a value expression to a pattern.class
Checks RDF term equality.class
The SAMPLE operator as defined in http://www.w3.org/TR/sparql11-query/#aggregatesclass
The SERVICE keyword as defined in SERVICE definition.class
A tuple expression that contains exactly one solution with zero bindings.class
The SLICE operator, as defined in SPARQL Query Language for RDF.class
A tuple expression that matches a statement pattern against an RDF graph.class
The STR function, as defined in SPARQL Query Language for RDF; returns the label of literals or the string representation of URIs.class
class
The SUM operator as defined in http://www.w3.org/TR/sparql11-query/#aggregatesclass
Triple lookup reference.class
A call to a TupleFunction.class
An abstract superclass for unary tuple operators which, by definition, has one argument.class
An abstract superclass for unary value operators which, by definition, has one argument.class
The UNION set operator, which return the union of the result sets of two tuple expressions.class
A ValueExpr with a constant value.class
class
A variable that can contain a Value.class
A tuple expression that matches a path of length zero against an RDF graph.