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Interface ISparqlExpression

Interface for SPARQL Expression Terms that can be used in Expression Trees while evaluating Sparql Queries.

Namespace: VDS.RDF.Query.Expressions
Assembly: dotNetRdf.dll
Syntax
public interface ISparqlExpression

Properties

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Arguments

Gets the Arguments of this Expression.

Declaration
IEnumerable<ISparqlExpression> Arguments { get; }
Property Value
Type Description
IEnumerable<ISparqlExpression>
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CanParallelise

Gets whether an expression can safely be evaluated in parallel.

Declaration
bool CanParallelise { get; }
Property Value
Type Description
bool
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Functor

Gets the Function Name or Operator Symbol - function names may be URIs of Keywords or the empty string in the case of primary expressions.

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

Gets the SPARQL Expression Type.

Declaration
SparqlExpressionType Type { get; }
Property Value
Type Description
SparqlExpressionType
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Variables

Gets an enumeration of all the Variables used in an expression.

Declaration
IEnumerable<string> Variables { get; }
Property Value
Type Description
IEnumerable<string>

Methods

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Accept<T>(ISparqlExpressionVisitor<T>)

Accept a ISparqlExpressionVisitor<T> by calling the appropriate method on its interface for this expression.

Declaration
T Accept<T>(ISparqlExpressionVisitor<T> visitor)
Parameters
Type Name Description
ISparqlExpressionVisitor<T> visitor

The visitor to be invoked.

Returns
Type Description
T

The result of calling the method on the visitor.

Type Parameters
Name Description
T

Type of result that the called method returns.

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Accept<TResult, TContext, TBinding>(ISparqlExpressionProcessor<TResult, TContext, TBinding>, TContext, TBinding)

Accept a ISparqlExpressionProcessor<TResult, TContext, TBinding> by calling the appropriate method on its interface for this expression.

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

The processor to be invoked.

TContext context

The context object to use for processing.

TBinding binding

The binding to be processed.

Returns
Type Description
TResult
Type Parameters
Name Description
TResult

Type of result that the process method returns.

TContext

The type of the context parameter to the process method.

TBinding

The type of the binding parameter of the process method.

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Transform(IExpressionTransformer)

Transforms the arguments of the expression using the given transformer.

Declaration
ISparqlExpression Transform(IExpressionTransformer transformer)
Parameters
Type Name Description
IExpressionTransformer transformer

Expression Transformer.

Returns
Type Description
ISparqlExpression

Extension Methods

Extensions.ToSafeString(object)
Extensions.AsEnumerable<T>(T)
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In this article
  • Properties
    • Arguments
    • CanParallelise
    • Functor
    • Type
    • Variables
  • Methods
    • Accept<T>(ISparqlExpressionVisitor<T>)
    • Accept<TResult, TContext, TBinding>(ISparqlExpressionProcessor<TResult, TContext, TBinding>, TContext, TBinding)
    • Transform(IExpressionTransformer)
  • Extension Methods
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