Interface ExclusiveTupleExprRenderer
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- All Superinterfaces:
Cloneable
,ExclusiveTupleExpr
,FedXTupleExpr
,QueryModelNode
,QueryRef
,Serializable
,TupleExpr
,VariableExpr
- All Known Implementing Classes:
ExclusiveArbitraryLengthPath
public interface ExclusiveTupleExprRenderer extends ExclusiveTupleExpr
A specialization ofExclusiveTupleExpr
which provides definitions how the expressions can be rendered to a sub-query.This is required for the evaluation of sub queries.
- Author:
- Andreas Schwarte
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description TupleExpr
toQueryAlgebra(Set<String> varNames, BindingSet bindings)
Returns a SPARQL algebra representation of this expression that can be inserted into a SELECTTupleExpr
String
toQueryString(Set<String> varNames, BindingSet bindings)
Returns a SPARQL string representation of this expression that can be inserted into a SELECT query.-
Methods inherited from interface org.eclipse.rdf4j.federated.algebra.ExclusiveTupleExpr
getOwner
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Methods inherited from interface org.eclipse.rdf4j.federated.algebra.FedXTupleExpr
getFreeVarCount
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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
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Methods inherited from interface org.eclipse.rdf4j.federated.algebra.QueryRef
getQueryInfo
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Methods inherited from interface org.eclipse.rdf4j.query.algebra.TupleExpr
clone, getAssuredBindingNames, getBindingNames
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Methods inherited from interface org.eclipse.rdf4j.federated.algebra.VariableExpr
getFreeVars
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Method Detail
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toQueryString
String toQueryString(Set<String> varNames, BindingSet bindings)
Returns a SPARQL string representation of this expression that can be inserted into a SELECT query.Implementations are required to create a valid query string for this expression where the given bindings are inserted.
- Parameters:
varNames
- the set of resulting (unbound) variables from this expressionbindings
- the optional input bindings- Returns:
- the query string part
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toQueryAlgebra
TupleExpr toQueryAlgebra(Set<String> varNames, BindingSet bindings)
Returns a SPARQL algebra representation of this expression that can be inserted into a SELECTTupleExpr
Implementations are required to create a new equivalent expression or clone, where any provided input bindings are inserted. The free variable names after insertion need to be added to the provided set.
- Parameters:
varNames
- the set of resulting (unbound) variables from this expressionbindings
- the input bindings that need to be inserted- Returns:
- the algebra expression
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