Class NamespaceMapper

Class for representing Mappings between Prefixes and Namespace URIs.

Inheritance

System.Object

NamespaceMapper

QNameOutputMapper

Implements

INamespaceMapper

System.IDisposable

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: VDS.RDF

Assembly: dotNetRdf.dll

Syntax

public class NamespaceMapper : INamespaceMapper, IDisposable

Constructors

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NamespaceMapper()

Constructs a new Namespace Map.

Declaration

public NamespaceMapper()

Remarks

The Prefixes rdf, rdfs and xsd are automatically defined.

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NamespaceMapper(bool)

Constructs a new Namespace Map which is optionally empty.

Declaration

public NamespaceMapper(bool empty)

Parameters

Type	Name	Description
System.Boolean	empty	Whether the Namespace Map should be empty, if set to false the Prefixes rdf, rdfs and xsd are automatically defined.

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NamespaceMapper(INamespaceMapper, IUriFactory)

Constructs a new Namespace Map which is based on an existing map.

Declaration

protected NamespaceMapper(INamespaceMapper nsmapper, IUriFactory uriFactory = null)

Parameters

Type	Name	Description
INamespaceMapper	nsmapper
IUriFactory	uriFactory	The factory to use internally when creating new Uri intances. If not specified, defaults to Root.

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NamespaceMapper(IUriFactory, bool)

Constructs a new namespace map with the specified URI factory.

Declaration

public NamespaceMapper(IUriFactory uriFactory, bool empty = false)

Parameters

Type	Name	Description
IUriFactory	uriFactory	The URI factory for the namespace map to use.
System.Boolean	empty	Whether the namespace map should be empty. If set to false, the prefixes rdf, rdfs and xsd are automatically defined.

Fields

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_prefixes

Mapping of URIs to Prefixes.

Declaration

protected Dictionary<int, List<string>> _prefixes

Field Value

Type	Description
System.Collections.Generic.Dictionary<TKey, TValue><int, System.Collections.Generic.List<T><string>>

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_uriFactory

URI factory to use.

Declaration

protected readonly IUriFactory _uriFactory

Field Value

Type	Description
IUriFactory

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_uris

Mapping of Prefixes to URIs.

Declaration

protected Dictionary<string, Uri> _uris

Field Value

Type	Description
System.Collections.Generic.Dictionary<TKey, TValue><string, System.Uri>

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OWL

Constant Uri for the OWL Namespace.

Declaration

public const string OWL = "http://www.w3.org/2002/07/owl#"

Field Value

Type	Description
string

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RDF

Constant Uri for the RDF Namespace.

Declaration

public const string RDF = "http://www.w3.org/1999/02/22-rdf-syntax-ns#"

Field Value

Type	Description
string

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RDFS

Constant Uri for the RDF Scheme Namespace.

Declaration

public const string RDFS = "http://www.w3.org/2000/01/rdf-schema#"

Field Value

Type	Description
string

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XMLSCHEMA

Constant Uri for the XML Scheme Namespace.

Declaration

public const string XMLSCHEMA = "http://www.w3.org/2001/XMLSchema#"

Field Value

Type	Description
string

Properties

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Prefixes

Gets a Enumerator of all the Prefixes.

Declaration

public IEnumerable<string> Prefixes { get; }

Property Value

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

Methods

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AddNamespace(string, Uri)

Adds a Namespace to the Namespace Map.

Declaration

public virtual void AddNamespace(string prefix, Uri uri)

Parameters

Type	Name	Description
string	prefix	Namespace Prefix.
System.Uri	uri	Namespace Uri.

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Clear()

Clears the Namespace Map.

Declaration

public void Clear()

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DefaultQNameValidationFunction(string)

Provides a default validation function for QNames generated by the ReduceToQName(string, out string, Func<string, bool>) method.

Declaration

public static bool DefaultQNameValidationFunction(string qname)

Parameters

Type	Name	Description
string	qname	The QName to be validated.

Returns

Type	Description
System.Boolean	False if the QName contains a '#' or '/' character, true otherwise.

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Dispose()

Disposes of a Namespace Map.

Declaration

public void Dispose()

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GetNamespaceUri(string)

Returns the Namespace URI associated with the given Prefix.

Declaration

public virtual Uri GetNamespaceUri(string prefix)

Parameters

Type	Name	Description
string	prefix	The Prefix to lookup the Namespace URI for.

Returns

Type	Description
System.Uri	URI for the Namespace.

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GetPrefix(Uri)

Returns the Prefix associated with the given Namespace URI.

Declaration

public virtual string GetPrefix(Uri uri)

Parameters

Type	Name	Description
System.Uri	uri	The Namespace URI to lookup the Prefix for.

Returns

Type	Description
string	String prefix for the Namespace.

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HasNamespace(string)

Method which checks whether a given Namespace Prefix is defined.

Declaration

public virtual bool HasNamespace(string prefix)

Parameters

Type	Name	Description
string	prefix	Prefix to test.

Returns

Type	Description
System.Boolean

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HasNamespace(Uri)

Method which checks whether a given Namespace is defined.

Declaration

public virtual bool HasNamespace(Uri ns)

Parameters

Type	Name	Description
System.Uri	ns	Namespace to test.

Returns

Type	Description
System.Boolean

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Import(INamespaceMapper)

Imports the contents of another Namespace Map into this Namespace Map.

Declaration

public virtual void Import(INamespaceMapper nsmap)

Parameters

Type	Name	Description
INamespaceMapper	nsmap	Namespace Map to import.

Remarks

Prefixes in the imported Map which are already defined in this Map are ignored, this may change in future releases.

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OnNamespaceAdded(string, Uri)

Internal Helper for the NamespaceAdded Event which raises it only when a Handler is registered.

Declaration

protected virtual void OnNamespaceAdded(string prefix, Uri uri)

Parameters

Type	Name	Description
string	prefix	Namespace Prefix.
System.Uri	uri	Namespace Uri.

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OnNamespaceModified(string, Uri)

Internal Helper for the NamespaceModified Event which raises it only when a Handler is registered.

Declaration

protected virtual void OnNamespaceModified(string prefix, Uri uri)

Parameters

Type	Name	Description
string	prefix	Namespace Prefix.
System.Uri	uri	Namespace Uri.

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OnNamespaceRemoved(string, Uri)

Internal Helper for the NamespaceRemoved Event which raises it only when a Handler is registered.

Declaration

protected virtual void OnNamespaceRemoved(string prefix, Uri uri)

Parameters

Type	Name	Description
string	prefix	Namespace Prefix.
System.Uri	uri	Namespace Uri.

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ReduceToQName(string, out string, Func<string, bool>)

A Function which attempts to reduce a Uri to a QName.

Declaration

public virtual bool ReduceToQName(string uri, out string qname, Func<string, bool> validationFunction = null)

Parameters

Type	Name	Description
string	uri	The Uri to attempt to reduce.
string	qname	The value to output the QName to if possible.
System.Func<T, TResult><string, System.Boolean>	validationFunction	A validation function to use to validate the QName. Only a QName value for which the validation function return true will be returned.

Returns

Type	Description
System.Boolean

Remarks

This function will return a Boolean indicated whether it succeeded in reducing the Uri to a QName. If it did then the out parameter qname will contain the reduction, otherwise it will be the empty string.

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RemoveNamespace(string)

Removes a Namespace from the NamespaceMapper.

Declaration

public virtual void RemoveNamespace(string prefix)

Parameters

Type	Name	Description
string	prefix	Namespace Prefix of the Namespace to remove.

Events

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NamespaceAdded

Event which is raised when a Namespace is Added

Declaration

public event NamespaceChanged NamespaceAdded

Event Type

Type	Description
NamespaceChanged

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NamespaceModified

Event which is raised when a Namespace is Modified

Declaration

public event NamespaceChanged NamespaceModified

Event Type

Type	Description
NamespaceChanged

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NamespaceRemoved

Event which is raised when a Namespace is Removed

Declaration

public event NamespaceChanged NamespaceRemoved

Event Type

Type	Description
NamespaceChanged

Implements

INamespaceMapper

System.IDisposable

Extension Methods

Extensions.ToSafeString(object)

Extensions.AsEnumerable<T>(T)