Class BaseCast

Abstract Expression class used as the base class for implementation of XPath Casting Function expressions.
Inheritance
System.Object
BaseCast
BooleanCast
DateTimeCast
DecimalCast
DoubleCast
FloatCast
IntegerCast
StringCast
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.Cast
Assembly: dotNetRDF.dll
Syntax
public abstract class BaseCast : ISparqlExpression

Constructors

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BaseCast(ISparqlExpression)

Creates a new Base XPath Cast Expression.
Declaration
public BaseCast(ISparqlExpression expr)
Parameters
Type Name Description
ISparqlExpression expr Expression to be Cast.

Fields

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_expr

Expression to be Cast by the Cast Function.
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 enumeration of Variables involved in this expression.
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 casting the result of the inner expression.
Declaration
public abstract IValuedNode Evaluate(SparqlEvaluationContext context, int bindingID)
Parameters
Type Name Description
SparqlEvaluationContext context Evaluation Context.
System.Int32 bindingID Binding ID.
Returns
Type Description
IValuedNode
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ToString()

Gets the String representation of this Expression.
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

Implements

Extension Methods