Class BaseDemandDataset

Abstract Dataset wrapper implementation for datasets that can load graphs on demand.

Inheritance
object
WrapperDataset
BaseDemandDataset
WebDemandDataset
Implements
Inherited Members
Namespace: VDS.RDF.Query.Datasets
Assembly: dotNetRdf.dll
Syntax
public abstract class BaseDemandDataset : WrapperDataset, IConfigurationSerializable, IThreadSafeDataset, ISparqlDataset, ITripleIndex

Constructors

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BaseDemandDataset(ISparqlDataset)

Creates a new Demand Dataset.

Declaration
public BaseDemandDataset(ISparqlDataset dataset)
Parameters
Type Name Description
ISparqlDataset dataset

Underlying Dataset.

Methods

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HasGraph(Uri)

Sees if the underlying dataset has a graph and if not tries to load it on demand.

Declaration
[Obsolete("Replaced by HasGraph(IRefNode)")]
public override bool HasGraph(Uri graphUri)
Parameters
Type Name Description
Uri graphUri

Graph URI.
Returns
Type Description
bool
Overrides
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HasGraph(IRefNode)

Declaration
public override bool HasGraph(IRefNode graphName)
Parameters
Type Name Description
IRefNode graphName
Returns
Type Description
bool
Overrides
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TryLoadGraph(Uri, out IGraph)

Method to be implemented by derived classes which implements the loading of graphs on demand.

Declaration
protected abstract bool TryLoadGraph(Uri graphUri, out IGraph g)
Parameters
Type Name Description
Uri graphUri

Graph URI.
IGraph g

Graph.
Returns
Type Description
bool

Implements

Extension Methods