Class BaseBinaryStringFunction

Abstract Base class for XPath Binary String functions.
Inheritance
System.Object
BaseBinaryStringFunction
CompareFunction
ContainsFunction
EndsWithFunction
NormalizeUnicodeFunction
StartsWithFunction
SubstringAfterFunction
SubstringBeforeFunction
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.XPath.String
Assembly: dotNetRDF.dll
Syntax
public abstract class BaseBinaryStringFunction : ISparqlExpression

Constructors

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BaseBinaryStringFunction(ISparqlExpression, ISparqlExpression, Boolean, Func<Uri, Boolean>)

Creates a new XPath Binary String function.
Declaration
public BaseBinaryStringFunction(ISparqlExpression stringExpr, ISparqlExpression argExpr, bool allowNullArgument, Func<Uri, bool> argumentTypeValidator)
Parameters
Type Name Description
ISparqlExpression stringExpr Expression.
ISparqlExpression argExpr Argument.
System.Boolean allowNullArgument Whether the argument may be null.
System.Func<System.Uri, System.Boolean> argumentTypeValidator Type validator for the argument.

Fields

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_allowNullArgument

Whether the argument can be null.
Declaration
protected bool _allowNullArgument
Field Value
Type Description
System.Boolean
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_arg

Argument expression.
Declaration
protected ISparqlExpression _arg
Field Value
Type Description
ISparqlExpression
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_argumentTypeValidator

Type validation function for the argument.
Declaration
protected Func<Uri, bool> _argumentTypeValidator
Field Value
Type Description
System.Func<System.Uri, System.Boolean>
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_expr

Expression the function applies over.
Declaration
protected ISparqlExpression _expr
Field Value
Type Description
ISparqlExpression

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

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

Gets the Variables used in the function.
Declaration
public virtual 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 function 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 Context.
System.Int32 bindingID Binding ID.
Returns
Type Description
IValuedNode
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ToString()

Gets the String representation of the function.
Declaration
public abstract 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 abstract ISparqlExpression Transform(IExpressionTransformer transformer)
Parameters
Type Name Description
IExpressionTransformer transformer Expression Transformer.
Returns
Type Description
ISparqlExpression
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ValueInternal(ILiteralNode)

Gets the Value of the function as applied to the given String Literal.
Declaration
public virtual IValuedNode ValueInternal(ILiteralNode stringLit)
Parameters
Type Name Description
ILiteralNode stringLit Simple/String typed Literal.
Returns
Type Description
IValuedNode
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ValueInternal(ILiteralNode, ILiteralNode)

Gets the Value of the function as applied to the given String Literal and Argument.
Declaration
public abstract IValuedNode ValueInternal(ILiteralNode stringLit, ILiteralNode arg)
Parameters
Type Name Description
ILiteralNode stringLit Simple/String typed Literal.
ILiteralNode arg Argument.
Returns
Type Description
IValuedNode

Implements

Extension Methods