Class IfElseFunction

Class representing the SPARQL IF function.
Inheritance
System.Object
IfElseFunction
Implements
Inherited Members
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
Namespace: VDS.RDF.Query.Expressions.Functions.Sparql
Assembly: dotNetRDF.dll
Syntax
public class IfElseFunction : ISparqlExpression

Constructors

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IfElseFunction(ISparqlExpression, ISparqlExpression, ISparqlExpression)

Creates a new IF function.
Declaration
public IfElseFunction(ISparqlExpression condition, ISparqlExpression ifBranch, ISparqlExpression elseBranch)
Parameters
Type Name Description
ISparqlExpression condition Condition.
ISparqlExpression ifBranch Expression to evaluate if condition evaluates to true.
ISparqlExpression elseBranch Expression to evalaute if condition evaluates to false/error.

Properties

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Arguments

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

Gets whether an expression can safely be evaluated in parallel.
Declaration
public virtual bool CanParallelise { get; }
Property Value
Type Description
System.Boolean
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Functor

Gets the Functor for the Expression.
Declaration
public string Functor { get; }
Property Value
Type Description
System.String
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Type

Gets the Expression Type.
Declaration
public SparqlExpressionType Type { get; }
Property Value
Type Description
SparqlExpressionType
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Variables

Gets the enumeration of variables used in the expression.
Declaration
public IEnumerable<string> Variables { get; }
Property Value
Type Description
System.Collections.Generic.IEnumerable<System.String>

Methods

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Evaluate(SparqlEvaluationContext, Int32)

Gets the value of the expression as evaluated in the given Context for the given Binding ID.
Declaration
public IValuedNode Evaluate(SparqlEvaluationContext context, int bindingID)
Parameters
Type Name Description
SparqlEvaluationContext context SPARQL Evaluation Context.
System.Int32 bindingID Binding ID.
Returns
Type Description
IValuedNode
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ToString()

Gets the String representation of the function.
Declaration
public override string ToString()
Returns
Type Description
System.String
Overrides
System.Object.ToString()
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Transform(IExpressionTransformer)

Transforms the Expression using the given Transformer.
Declaration
public ISparqlExpression Transform(IExpressionTransformer transformer)
Parameters
Type Name Description
IExpressionTransformer transformer Expression Transformer.
Returns
Type Description
ISparqlExpression

Implements

Extension Methods