Class XPathFunctionFactory

Expression Factory which generates XPath Function expressions.

Inheritance

System.Object

XPathFunctionFactory

Implements

ISparqlCustomExpressionFactory

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)

System.Object.ToString()

Namespace: VDS.RDF.Query.Expressions

Assembly: dotNetRDF.dll

Syntax

public class XPathFunctionFactory : ISparqlCustomExpressionFactory

Fields

Absolute

Constants representing the XPath Numeric Functions.

Declaration

public const string Absolute = "abs"

Field Value

Type	Description
System.String

AcceptIntegerArguments

Argument Type Validator for validating that a Literal has an Integer datatype.

Declaration

public static Func<Uri, bool> AcceptIntegerArguments

Field Value

Type	Description
System.Func<System.Uri, System.Boolean>

AcceptNumericArguments

Argument Type Validator for validating that a Literal has a Numeric datatype.

Declaration

public static Func<Uri, bool> AcceptNumericArguments

Field Value

Type	Description
System.Func<System.Uri, System.Boolean>

AcceptStringArguments

Argument Type Validator for validating that a Literal either has no datatype or is a String.

Declaration

public static Func<Uri, bool> AcceptStringArguments

Field Value

Type	Description
System.Func<System.Uri, System.Boolean>

AdjustDateTimeToTimezone

Constants representing the XPath Date Time functions.

Declaration

public const string AdjustDateTimeToTimezone = "adjust-dateTime-to-timezone"

Field Value

Type	Description
System.String

Boolean

Constant representing the XPath boolean functions.

Declaration

public const string Boolean = "boolean"

Field Value

Type	Description
System.String

Ceiling

Constants representing the XPath Numeric Functions.

Declaration

public const string Ceiling = "ceiling"

Field Value

Type	Description
System.String

Compare

Constants representing the names of XPath String functions.

Declaration

public const string Compare = "compare"

Field Value

Type	Description
System.String

Concat

Constants representing the names of XPath String functions.

Declaration

public const string Concat = "concat"

Field Value

Type	Description
System.String

Contains

Constants representing the names of XPath String functions.

Declaration

public const string Contains = "contains"

Field Value

Type	Description
System.String

DayFromDateTime

Constants representing the XPath Date Time functions.

Declaration

public const string DayFromDateTime = "day-from-dateTime"

Field Value

Type	Description
System.String

EncodeForURI

Constants representing the names of XPath String functions.

Declaration

public const string EncodeForURI = "encode-for-uri"

Field Value

Type	Description
System.String

EndsWith

Constants representing the names of XPath String functions.

Declaration

public const string EndsWith = "ends-with"

Field Value

Type	Description
System.String

EscapeHtmlURI

Constants representing the names of XPath String functions.

Declaration

public const string EscapeHtmlURI = "escape-html-uri"

Field Value

Type	Description
System.String

False

Constants representing the XPath Boolean constructor functions.

Declaration

public const string False = "false"

Field Value

Type	Description
System.String

Floor

Constants representing the XPath Numeric Functions.

Declaration

public const string Floor = "floor"

Field Value

Type	Description
System.String

HoursFromDateTime

Constants representing the XPath Date Time functions.

Declaration

public const string HoursFromDateTime = "hours-from-dateTime"

Field Value

Type	Description
System.String

LowerCase

Constants representing the names of XPath String functions.

Declaration

public const string LowerCase = "lower-case"

Field Value

Type	Description
System.String

Matches

Constants representing the names of XPath String functions.

Declaration

public const string Matches = "matches"

Field Value

Type	Description
System.String

MinutesFromDateTime

Constants representing the XPath Date Time functions.

Declaration

public const string MinutesFromDateTime = "minutes-from-dateTime"

Field Value

Type	Description
System.String

MonthFromDateTime

Constants representing the XPath Date Time functions.

Declaration

public const string MonthFromDateTime = "month-from-dateTime"

Field Value

Type	Description
System.String

NormalizeSpace

Constants representing the names of XPath String functions.

Declaration

public const string NormalizeSpace = "normalize-space"

Field Value

Type	Description
System.String

NormalizeUnicode

Constants representing the names of XPath String functions.

Declaration

public const string NormalizeUnicode = "normalize-unicode"

Field Value

Type	Description
System.String

Not

Constant representing the XPath boolean functions.

Declaration

public const string Not = "not"

Field Value

Type	Description
System.String

Replace

Constants representing the names of XPath String functions.

Declaration

public const string Replace = "replace"

Field Value

Type	Description
System.String

Round

Constants representing the XPath Numeric Functions.

Declaration

public const string Round = "round"

Field Value

Type	Description
System.String

RoundHalfToEven

Constants representing the XPath Numeric Functions.

Declaration

public const string RoundHalfToEven = "round-half-to-even"

Field Value

Type	Description
System.String

SecondsFromDateTime

Constants representing the XPath Date Time functions.

Declaration

public const string SecondsFromDateTime = "seconds-from-dateTime"

Field Value

Type	Description
System.String

StartsWith

Constants representing the names of XPath String functions.

Declaration

public const string StartsWith = "starts-with"

Field Value

Type	Description
System.String

StringJoin

Constants representing the names of XPath String functions.

Declaration

public const string StringJoin = "string-join"

Field Value

Type	Description
System.String

StringLength

Constants representing the names of XPath String functions.

Declaration

public const string StringLength = "string-length"

Field Value

Type	Description
System.String

Substring

Constants representing the names of XPath String functions.

Declaration

public const string Substring = "substring"

Field Value

Type	Description
System.String

SubstringAfter

Constants representing the names of XPath String functions.

Declaration

public const string SubstringAfter = "substring-after"

Field Value

Type	Description
System.String

SubstringBefore

Constants representing the names of XPath String functions.

Declaration

public const string SubstringBefore = "substring-before"

Field Value

Type	Description
System.String

TimezoneFromDateTime

Constants representing the XPath Date Time functions.

Declaration

public const string TimezoneFromDateTime = "timezone-from-dateTime"

Field Value

Type	Description
System.String

Translate

Constants representing the names of XPath String functions.

Declaration

public const string Translate = "translate"

Field Value

Type	Description
System.String

True

Constants representing the XPath Boolean constructor functions.

Declaration

public const string True = "true"

Field Value

Type	Description
System.String

UpperCase

Constants representing the names of XPath String functions.

Declaration

public const string UpperCase = "upper-case"

Field Value

Type	Description
System.String

XPathFunctionsNamespace

Namespace Uri for XPath Functions Namespace.

Declaration

public const string XPathFunctionsNamespace = "http://www.w3.org/2005/xpath-functions#"

Field Value

Type	Description
System.String

XPathUnicodeNormalizationFormC

Constants representing the Normalization Form values supported by the XPath normalize-unicode() function.

Declaration

public const string XPathUnicodeNormalizationFormC = "NFC"

Field Value

Type	Description
System.String

XPathUnicodeNormalizationFormD

Constants representing the Normalization Form values supported by the XPath normalize-unicode() function.

Declaration

public const string XPathUnicodeNormalizationFormD = "NFD"

Field Value

Type	Description
System.String

XPathUnicodeNormalizationFormFull

Constants representing the Normalization Form values supported by the XPath normalize-unicode() function.

Declaration

public const string XPathUnicodeNormalizationFormFull = "FULLY-NORMALIZED"

Field Value

Type	Description
System.String

XPathUnicodeNormalizationFormKC

Constants representing the Normalization Form values supported by the XPath normalize-unicode() function.

Declaration

public const string XPathUnicodeNormalizationFormKC = "NFKC"

Field Value

Type	Description
System.String

XPathUnicodeNormalizationFormKD

Constants representing the Normalization Form values supported by the XPath normalize-unicode() function.

Declaration

public const string XPathUnicodeNormalizationFormKD = "NFKD"

Field Value

Type	Description
System.String

YearFromDateTime

Constants representing the XPath Date Time functions.

Declaration

public const string YearFromDateTime = "year-from-dateTime"

Field Value

Type	Description
System.String

Properties

AvailableExtensionAggregates

Gets the Extension Aggregate URIs supported by this Factory.

Declaration

public IEnumerable<Uri> AvailableExtensionAggregates { get; }

Property Value

Type	Description
System.Collections.Generic.IEnumerable<System.Uri>

AvailableExtensionFunctions

Gets the Extension Function URIs supported by this Factory.

Declaration

public IEnumerable<Uri> AvailableExtensionFunctions { get; }

Property Value

Type	Description
System.Collections.Generic.IEnumerable<System.Uri>

Methods

TryCreateExpression(Uri, List<ISparqlExpression>, Dictionary<String, ISparqlExpression>, out ISparqlExpression)

Tries to create an XPath Function expression if the function Uri correseponds to a supported XPath Function.

Declaration

public bool TryCreateExpression(Uri u, List<ISparqlExpression> args, Dictionary<string, ISparqlExpression> scalarArgs, out ISparqlExpression expr)

Parameters

Type	Name	Description
System.Uri	u	Function Uri.
System.Collections.Generic.List<ISparqlExpression>	args	Function Arguments.
System.Collections.Generic.Dictionary<System.String, ISparqlExpression>	scalarArgs	Scalar Arguments.
ISparqlExpression	expr	Generated Expression.

Returns

Type	Description
System.Boolean	Whether an expression was successfully generated.

Implements

ISparqlCustomExpressionFactory

Extension Methods

Extensions.AsEnumerable<T>(T)