Class XPathFunctionFactory

Expression Factory which generates XPath Function expressions.

Inheritance

System.Object

XPathFunctionFactory

Implements

ISparqlCustomExpressionFactory

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: VDS.RDF.Query.Expressions

Assembly: dotNetRdf.dll

Syntax

public class XPathFunctionFactory : ISparqlCustomExpressionFactory

Fields

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Absolute

Constants representing the XPath Numeric Functions.

Declaration

public const string Absolute = "abs"

Field Value

Type	Description
string

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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<T, TResult><System.Uri, System.Boolean>

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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<T, TResult><System.Uri, System.Boolean>

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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<T, TResult><System.Uri, System.Boolean>

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AdjustDateTimeToTimezone

Constants representing the XPath Date Time functions.

Declaration

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

Field Value

Type	Description
string

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Boolean

Constant representing the XPath boolean functions.

Declaration

public const string Boolean = "boolean"

Field Value

Type	Description
string

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Ceiling

Constants representing the XPath Numeric Functions.

Declaration

public const string Ceiling = "ceiling"

Field Value

Type	Description
string

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Compare

Constants representing the names of XPath String functions.

Declaration

public const string Compare = "compare"

Field Value

Type	Description
string

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Concat

Constants representing the names of XPath String functions.

Declaration

public const string Concat = "concat"

Field Value

Type	Description
string

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Contains

Constants representing the names of XPath String functions.

Declaration

public const string Contains = "contains"

Field Value

Type	Description
string

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DayFromDateTime

Constants representing the XPath Date Time functions.

Declaration

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

Field Value

Type	Description
string

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EncodeForURI

Constants representing the names of XPath String functions.

Declaration

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

Field Value

Type	Description
string

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EndsWith

Constants representing the names of XPath String functions.

Declaration

public const string EndsWith = "ends-with"

Field Value

Type	Description
string

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EscapeHtmlURI

Constants representing the names of XPath String functions.

Declaration

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

Field Value

Type	Description
string

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False

Constants representing the XPath Boolean constructor functions.

Declaration

public const string False = "false"

Field Value

Type	Description
string

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Floor

Constants representing the XPath Numeric Functions.

Declaration

public const string Floor = "floor"

Field Value

Type	Description
string

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HoursFromDateTime

Constants representing the XPath Date Time functions.

Declaration

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

Field Value

Type	Description
string

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LowerCase

Constants representing the names of XPath String functions.

Declaration

public const string LowerCase = "lower-case"

Field Value

Type	Description
string

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Matches

Constants representing the names of XPath String functions.

Declaration

public const string Matches = "matches"

Field Value

Type	Description
string

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MinutesFromDateTime

Constants representing the XPath Date Time functions.

Declaration

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

Field Value

Type	Description
string

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MonthFromDateTime

Constants representing the XPath Date Time functions.

Declaration

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

Field Value

Type	Description
string

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NormalizeSpace

Constants representing the names of XPath String functions.

Declaration

public const string NormalizeSpace = "normalize-space"

Field Value

Type	Description
string

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NormalizeUnicode

Constants representing the names of XPath String functions.

Declaration

public const string NormalizeUnicode = "normalize-unicode"

Field Value

Type	Description
string

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Not

Constant representing the XPath boolean functions.

Declaration

public const string Not = "not"

Field Value

Type	Description
string

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Replace

Constants representing the names of XPath String functions.

Declaration

public const string Replace = "replace"

Field Value

Type	Description
string

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Round

Constants representing the XPath Numeric Functions.

Declaration

public const string Round = "round"

Field Value

Type	Description
string

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RoundHalfToEven

Constants representing the XPath Numeric Functions.

Declaration

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

Field Value

Type	Description
string

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SecondsFromDateTime

Constants representing the XPath Date Time functions.

Declaration

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

Field Value

Type	Description
string

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StartsWith

Constants representing the names of XPath String functions.

Declaration

public const string StartsWith = "starts-with"

Field Value

Type	Description
string

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StringJoin

Constants representing the names of XPath String functions.

Declaration

public const string StringJoin = "string-join"

Field Value

Type	Description
string

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StringLength

Constants representing the names of XPath String functions.

Declaration

public const string StringLength = "string-length"

Field Value

Type	Description
string

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Substring

Constants representing the names of XPath String functions.

Declaration

public const string Substring = "substring"

Field Value

Type	Description
string

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SubstringAfter

Constants representing the names of XPath String functions.

Declaration

public const string SubstringAfter = "substring-after"

Field Value

Type	Description
string

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SubstringBefore

Constants representing the names of XPath String functions.

Declaration

public const string SubstringBefore = "substring-before"

Field Value

Type	Description
string

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TimezoneFromDateTime

Constants representing the XPath Date Time functions.

Declaration

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

Field Value

Type	Description
string

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Translate

Constants representing the names of XPath String functions.

Declaration

public const string Translate = "translate"

Field Value

Type	Description
string

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True

Constants representing the XPath Boolean constructor functions.

Declaration

public const string True = "true"

Field Value

Type	Description
string

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UpperCase

Constants representing the names of XPath String functions.

Declaration

public const string UpperCase = "upper-case"

Field Value

Type	Description
string

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XPathFunctionsNamespace

Namespace Uri for XPath Functions Namespace.

Declaration

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

Field Value

Type	Description
string

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XPathUnicodeNormalizationFormC

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

Declaration

public const string XPathUnicodeNormalizationFormC = "NFC"

Field Value

Type	Description
string

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XPathUnicodeNormalizationFormD

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

Declaration

public const string XPathUnicodeNormalizationFormD = "NFD"

Field Value

Type	Description
string

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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
string

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XPathUnicodeNormalizationFormKC

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

Declaration

public const string XPathUnicodeNormalizationFormKC = "NFKC"

Field Value

Type	Description
string

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XPathUnicodeNormalizationFormKD

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

Declaration

public const string XPathUnicodeNormalizationFormKD = "NFKD"

Field Value

Type	Description
string

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YearFromDateTime

Constants representing the XPath Date Time functions.

Declaration

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

Field Value

Type	Description
string

Properties

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AvailableExtensionAggregates

Gets the Extension Aggregate URIs supported by this Factory.

Declaration

public IEnumerable<Uri> AvailableExtensionAggregates { get; }

Property Value

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

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AvailableExtensionFunctions

Gets the Extension Function URIs supported by this Factory.

Declaration

public IEnumerable<Uri> AvailableExtensionFunctions { get; }

Property Value

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

Methods

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

Tries to create an XPath Function expression if the function Uri corresponds 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<T><ISparqlExpression>	args	Function Arguments.
System.Collections.Generic.Dictionary<TKey, TValue><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.ToSafeString(object)

Extensions.AsEnumerable<T>(T)