Class UniqueBlankNodesHandler

A decorator for handlers which ensures that all blank nodes get unique IDs even if a blank node identifier is reused.

Inheritance
object
BaseHandler
BaseRdfHandler
UniqueBlankNodesHandler
Implements
Inherited Members
Namespace: VDS.RDF.Parsing.Handlers
Assembly: dotNetRdf.dll
Syntax
public class UniqueBlankNodesHandler : BaseRdfHandler, ICommentRdfHandler, IWrappingRdfHandler, IRdfHandler, INodeFactory
Remarks

In most parsing scenarios this handler is not suitable for usage as it may unintentionally modify the RDF data being parsed, in non-parsing scenarios where this handler is instead being used as a means to generate RDF data from some non-RDF source it may prove very useful.

This handler essentially works by redirecting all calls to the argument taking form of CreateBlankNode() with the non-argument form which should always generate a new blank node thus guaranteeing the uniqueness of nodes.

Constructors

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UniqueBlankNodesHandler(IRdfHandler)

Creates a new Unique Blank Nodes handler.

Declaration
public UniqueBlankNodesHandler(IRdfHandler handler)
Parameters
Type Name Description
IRdfHandler handler

Properties

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AcceptsAll

Gets whether the inner handler accepts all.

Declaration
public override bool AcceptsAll { get; }
Property Value
Type Description
bool
Overrides
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InnerHandlers

Gets the inner handler.

Declaration
public IEnumerable<IRdfHandler> InnerHandlers { get; }
Property Value
Type Description
IEnumerable<IRdfHandler>

Methods

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CreateBlankNode(string)

Creates a Blank Node.

Declaration
public override IBlankNode CreateBlankNode(string nodeId)
Parameters
Type Name Description
string nodeId

Node ID which will be ignored by this Handler.
Returns
Type Description
IBlankNode
Overrides
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EndRdfInternal(bool)

Ends handling RDF.

Declaration
protected override void EndRdfInternal(bool ok)
Parameters
Type Name Description
bool ok

Whether parsing completed OK.
Overrides
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HandleBaseUriInternal(Uri)

Handles a Base URI declaration.

Declaration
protected override bool HandleBaseUriInternal(Uri baseUri)
Parameters
Type Name Description
Uri baseUri

Base URI.
Returns
Type Description
bool
Overrides
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HandleNamespaceInternal(string, Uri)

Handles a Namespace declaration.

Declaration
protected override bool HandleNamespaceInternal(string prefix, Uri namespaceUri)
Parameters
Type Name Description
string prefix

Prefix.
Uri namespaceUri

Namespace URI.
Returns
Type Description
bool
Overrides
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HandleQuadInternal(Triple, IRefNode)

Handles a quad.

Declaration
protected override bool HandleQuadInternal(Triple t, IRefNode graph)
Parameters
Type Name Description
Triple t

Triple.
IRefNode graph

The name of the graph containing the triple.
Returns
Type Description
bool
Overrides
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HandleTripleInternal(Triple)

Handles a Triple.

Declaration
protected override bool HandleTripleInternal(Triple t)
Parameters
Type Name Description
Triple t

Triple.
Returns
Type Description
bool
Overrides
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StartRdfInternal()

Starts handling RDF.

Declaration
protected override void StartRdfInternal()
Overrides

Implements

Extension Methods