Class DatasetGraphCollection

A Graph Collection which wraps an ISparqlDataset implementation so it can be used as if it was a Graph Collection.

Inheritance
object
BaseGraphCollection
DatasetGraphCollection
Implements
Inherited Members
Namespace: VDS.RDF.Query.Datasets
Assembly: dotNetRdf.dll
Syntax
public class DatasetGraphCollection : BaseGraphCollection, IEnumerable<IGraph>, IEnumerable, IDisposable

Constructors

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DatasetGraphCollection(ISparqlDataset)

Creates a new Dataset Graph collection.

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

SPARQL Dataset.

Properties

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Count

Gets the number of Graphs in the Collection.

Declaration
public override int Count { get; }
Property Value
Type Description
int
Overrides
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GraphNames

Provides an enumeration of the names of all of teh graphs in the collection.

Declaration
public override IEnumerable<IRefNode> GraphNames { get; }
Property Value
Type Description
IEnumerable<IRefNode>
Overrides
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GraphUris

Gets the URIs of Graphs in the Collection.

Declaration
[Obsolete("Replaced by GraphNames")]
public override IEnumerable<Uri> GraphUris { get; }
Property Value
Type Description
IEnumerable<Uri>
Overrides
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this[Uri]

Gets the Graph with the given URI.

Declaration
[Obsolete("Replaced by this[IRefNode]")]
public override IGraph this[Uri graphUri] { get; }
Parameters
Type Name Description
Uri graphUri

Graph URI.
Property Value
Type Description
IGraph
Overrides
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this[IRefNode]

Gets a graph from the collection.

Declaration
public override IGraph this[IRefNode graphName] { get; }
Parameters
Type Name Description
IRefNode graphName

The name of the graph to retrieve.
Property Value
Type Description
IGraph
Overrides
Remarks

The null value is used to reference the default graph.

Methods

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Add(IGraph, bool)

Adds a Graph to the Collection.

Declaration
public override bool Add(IGraph g, bool mergeIfExists)
Parameters
Type Name Description
IGraph g

Graph to add.
bool mergeIfExists

Whether to merge the given Graph with any existing Graph with the same URI.
Returns
Type Description
bool
Overrides
Exceptions
Type Condition
RdfException

Thrown if a Graph with the given URI already exists and the mergeIfExists is set to false.
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Contains(Uri)

Gets whether the Collection contains a Graph with the given URI.

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

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

Checks whether the graph with the given name exists in this graph collection.

Declaration
public override bool Contains(IRefNode graphName)
Parameters
Type Name Description
IRefNode graphName

Graph name to test for.
Returns
Type Description
bool

True if a graph with the specified name is in the collection, false otherwise.
Overrides
Remarks

The null value is used to reference the default (unnamed) graph.

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Dispose()

Disposes of the Graph Collection.

Declaration
public override void Dispose()
Overrides
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GetEnumerator()

Gets the enumeration of Graphs in this Collection.

Declaration
public override IEnumerator<IGraph> GetEnumerator()
Returns
Type Description
IEnumerator<IGraph>
Overrides
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Remove(Uri)

Removes a Graph from the Collection.

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

URI of the Graph to removed.
Returns
Type Description
bool
Overrides
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Remove(IRefNode)

Removes a graph from the collection.

Declaration
public override bool Remove(IRefNode graphName)
Parameters
Type Name Description
IRefNode graphName

Name of the Graph to remove.
Returns
Type Description
bool
Overrides
Remarks

The null value is used to reference the Default Graph.

Implements

Extension Methods