Class ChainedHandler

A Handler which passes the RDF to be handled through a sequence of Handlers where Handling is terminated as soon as any Handler returns false.

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

This differs from the MultiHandler in that as soon as any Handler indicates that handling should stop by returning false handling is immediately terminated. All Handlers will always have their StartRdf and EndRdf methods called.

Constructors

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ChainedHandler(IEnumerable<IRdfHandler>)

Creates a new Chained Handler.

Declaration
public ChainedHandler(IEnumerable<IRdfHandler> handlers)
Parameters
Type Name Description
IEnumerable<IRdfHandler> handlers

Inner Handlers to use.

Properties

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AcceptsAll

Gets that this Handler accepts all Triples if all inner handlers do so.

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

Gets the Inner Handlers used by this Handler.

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

Methods

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EndRdfInternal(bool)

Ends the Handling of RDF for each inner handler.

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

Whether parsing completed without errors.
Overrides
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HandleBaseUriInternal(Uri)

Handles Base URIs by getting each inner handler to attempt to handle it.

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

Base URI.
Returns
Type Description
bool
Overrides
Remarks

Handling terminates at the first Handler which indicates handling should stop.

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HandleCommentInternal(string)

Handles Comments by getting each inner handler to attempt to handle it.

Declaration
protected override bool HandleCommentInternal(string text)
Parameters
Type Name Description
string text

Comment text.
Returns
Type Description
bool
Overrides
Remarks

Handling terminates at the first Handler which indicates handling should stop.

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HandleNamespaceInternal(string, Uri)

Handles Namespaces by getting each inner handler to attempt to handle it.

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

Namespace Prefix.
Uri namespaceUri

Namespace URI.
Returns
Type Description
bool
Overrides
Remarks

Handling terminates at the first Handler which indicates handling should stop.

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HandleQuadInternal(Triple, IRefNode)

Handles Quads by getting each inner handler to attempt to handle it.

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
Remarks

Handling terminates at the first Handler which indicates handling should stop.

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HandleTripleInternal(Triple)

Handles Triples by getting each inner handler to attempt to handle it.

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

Triple.
Returns
Type Description
bool
Overrides
Remarks

Handling terminates at the first Handler which indicates handling should stop.

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StartRdfInternal()

Starts the Handling of RDF for each inner handler.

Declaration
protected override void StartRdfInternal()
Overrides

Implements

Extension Methods