Class IfElseFunction

Class representing the SPARQL IF function.

Inheritance
System.Object
IfElseFunction
Implements
Inherited Members
object.Equals(object)
object.Equals(object, object)
object.GetHashCode()
object.GetType()
object.MemberwiseClone()
object.ReferenceEquals(object, 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<T><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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ConditionExpression

Get the condition to test.

Declaration
public ISparqlExpression ConditionExpression { get; }
Property Value
Type Description
ISparqlExpression
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FalseBranchExpression

Get the expression to evaluate if ConditionExpression evaluates to false.

Declaration
public ISparqlExpression FalseBranchExpression { get; }
Property Value
Type Description
ISparqlExpression
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Functor

Gets the Functor for the Expression.

Declaration
public string Functor { get; }
Property Value
Type Description
string
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TrueBranchExpression

Get the expression to evaluate if ConditionExpression evaluates to true.

Declaration
public ISparqlExpression TrueBranchExpression { get; }
Property Value
Type Description
ISparqlExpression
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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<T><string>

Methods

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Accept<T>(ISparqlExpressionVisitor<T>)

Declaration
public T Accept<T>(ISparqlExpressionVisitor<T> visitor)
Parameters
Type Name Description
ISparqlExpressionVisitor<T> visitor
Returns
Type Description
T
Type Parameters
Name Description
T
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Accept<TResult, TContext, TBinding>(ISparqlExpressionProcessor<TResult, TContext, TBinding>, TContext, TBinding)

Declaration
public TResult Accept<TResult, TContext, TBinding>(ISparqlExpressionProcessor<TResult, TContext, TBinding> processor, TContext context, TBinding binding)
Parameters
Type Name Description
ISparqlExpressionProcessor<TResult, TContext, TBinding> processor
TContext context
TBinding binding
Returns
Type Description
TResult
Type Parameters
Name Description
TResult
TContext
TBinding
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ToString()

Gets the String representation of the function.

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