Interface ISparqlAggregate

Interface for SPARQL Aggregates which can be used to calculate aggregates over Results.
Namespace: VDS.RDF.Query.Aggregates
Assembly: dotNetRDF.dll
Syntax
public interface ISparqlAggregate

Properties

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Arguments

Gets the Arguments of the Aggregate.
Declaration
IEnumerable<ISparqlExpression> Arguments { get; }
Property Value
Type Description
System.Collections.Generic.IEnumerable<ISparqlExpression>
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Expression

Gets the Expression that the Aggregate is applied to.
Declaration
ISparqlExpression Expression { get; }
Property Value
Type Description
ISparqlExpression
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Functor

Gets the URI/Keyword of the Aggregate.
Declaration
string Functor { get; }
Property Value
Type Description
System.String
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Type

Gets the Type of the Aggregate.
Declaration
SparqlExpressionType Type { get; }
Property Value
Type Description
SparqlExpressionType

Methods

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Apply(SparqlEvaluationContext)

Applies the Aggregate to the Result Binder and returns a single Node as a Result.
Declaration
IValuedNode Apply(SparqlEvaluationContext context)
Parameters
Type Name Description
SparqlEvaluationContext context Evaluation Context.
Returns
Type Description
IValuedNode
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Apply(SparqlEvaluationContext, IEnumerable<Int32>)

Applies the Aggregate to the Result Binder and returns a single Node as a Result.
Declaration
IValuedNode Apply(SparqlEvaluationContext context, IEnumerable<int> bindingIDs)
Parameters
Type Name Description
SparqlEvaluationContext context Evaluation Context.
System.Collections.Generic.IEnumerable<System.Int32> bindingIDs Enumerable of Binding IDs which the aggregate is applied over.
Returns
Type Description
IValuedNode

Extension Methods