TupleExpr (Eclipse RDF4J 5.0.2)

All Superinterfaces:: Cloneable, QueryModelNode, Serializable

All Known Subinterfaces:: ExclusiveTupleExpr, ExclusiveTupleExprRenderer, FedXTupleExpr, StatementTupleExpr

All Known Implementing Classes:: ArbitraryLengthPath, BinaryTupleOperator, BindingSetAssignment, CheckStatementPattern, DescribeOperator, Difference, Distinct, EmptyNJoin, EmptyNUnion, EmptySet, EmptyStatementPattern, ExclusiveArbitraryLengthPath, ExclusiveGroup, ExclusiveStatement, Extension, FederatedDescribeOperator, FedXArbitraryLengthPath, FedXLeftJoin, FedXService, FedXStatementPattern, FedXZeroLengthPath, Filter, Group, Intersection, Join, LeftJoin, MultiProjection, NJoin, NTuple, NUnion, Order, PassThroughTupleExpr, PrecompiledQueryNode, Projection, QueryRoot, Reduced, Service, SingleSourceQuery, SingletonSet, Slice, StatementPattern, StatementSourcePattern, TripleRef, TrueStatementPattern, TupleFunctionCall, UnaryTupleOperator, Union, ZeroLengthPath

public interface TupleExpr extends QueryModelNode

An expression that evaluates to RDF tuples.

Method Summary

Modifier and Type

Method

Description

TupleExpr

clone()

Returns a (deep) clone of this query model node.

Set<String>

getAssuredBindingNames()

Gets the names of the bindings that are guaranteed to be present in the results produced by this tuple expression.

Set<String>

getBindingNames()

Gets the names of the bindings that are, or can be, returned by this tuple expression when it is evaluated.

default Var

getOrder()

default Set<Var>

getSupportedOrders(AvailableStatementOrder tripleSource)

default void

setOrder(Var var)

Methods inherited from interface org.eclipse.rdf4j.query.algebra.QueryModelNode
equals, getCostEstimate, getParentNode, getResultSizeActual, getResultSizeEstimate, getSignature, getTotalTimeNanosActual, replaceChildNode, replaceWith, setCostEstimate, setParentNode, setResultSizeActual, setResultSizeEstimate, setTotalTimeNanosActual, toString, visit, visitChildren

Method Details
- getBindingNames
  
  Set<String> getBindingNames()
  
  Gets the names of the bindings that are, or can be, returned by this tuple expression when it is evaluated.
  
  Returns:
  
  A set of binding names.
- getAssuredBindingNames
  
  Set<String> getAssuredBindingNames()
  
  Gets the names of the bindings that are guaranteed to be present in the results produced by this tuple expression.
  
  Returns:
  
  A set of binding names.
- clone
  
  TupleExpr clone()
  
  Description copied from interface: QueryModelNode
  
  Returns a (deep) clone of this query model node. This method recursively clones the entire node tree, starting from this nodes.
  
  Specified by:
  
  clone in interface QueryModelNode
  
  Returns:
  
  A deep clone of this query model node.
- getSupportedOrders
  
  @Experimental default Set<Var> getSupportedOrders(AvailableStatementOrder tripleSource)
- setOrder
  
  @Experimental default void setOrder(Var var)
- getOrder
  
  @Experimental default Var getOrder()