Class CountDistinctAggregate

Class representing COUNT(DISTINCT ?x) Aggregate Function.

Inheritance
object
BaseAggregate
CountDistinctAggregate
Implements
Inherited Members
Namespace: VDS.RDF.Query.Aggregates.Sparql
Assembly: dotNetRdf.dll
Syntax
public class CountDistinctAggregate : BaseAggregate, ISparqlAggregate

Constructors

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CountDistinctAggregate(ISparqlExpression)

Creates a new COUNT DISTINCT Aggregate.

Declaration
public CountDistinctAggregate(ISparqlExpression expr)
Parameters
Type Name Description
ISparqlExpression expr

Expression.
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CountDistinctAggregate(VariableTerm)

Creates a new COUNT(DISTINCT ?x) Aggregate.

Declaration
public CountDistinctAggregate(VariableTerm expr)
Parameters
Type Name Description
VariableTerm expr

Variable Expression.

Properties

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Arguments

Gets the Arguments of the Aggregate.

Declaration
public override IEnumerable<ISparqlExpression> Arguments { get; }
Property Value
Type Description
IEnumerable<ISparqlExpression>
Overrides
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Functor

Gets the Functor of the Aggregate.

Declaration
public override string Functor { get; }
Property Value
Type Description
string
Overrides
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Variable

The variable to aggregate.

Declaration
public string Variable { get; }
Property Value
Type Description
string

Methods

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Accept<TResult, TContext, TBinding>(ISparqlAggregateProcessor<TResult, TContext, TBinding>, TContext, IEnumerable<TBinding>)

Called when the aggregate is visited during algebra processing.

Declaration
public override TResult Accept<TResult, TContext, TBinding>(ISparqlAggregateProcessor<TResult, TContext, TBinding> processor, TContext context, IEnumerable<TBinding> bindings)
Parameters
Type Name Description
ISparqlAggregateProcessor<TResult, TContext, TBinding> processor

The processor that handles this algebra.
TContext context

The current context.
IEnumerable<TBinding> bindings

The current set of bindings.
Returns
Type Description
TResult

The result of the aggregate processing.
Type Parameters
Name Description
TResult

The type of result object returned by the processor.
TContext

The type of the context object to be passed to the processor.
TBinding

The type of the binding objects to be passed to the processor.
Overrides
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ToString()

Gets the String representation of the Aggregate.

Declaration
public override string ToString()
Returns
Type Description
string
Overrides

Implements

Extension Methods