Class InMemoryQuadDataset

An in-memory dataset that operates in terms of quads, underlying storage is identical to a InMemoryDataset though this dataset should be more performant for queries that access named graphs frequently.

Inheritance

System.Object

BaseQuadDataset

BaseTransactionalQuadDataset

InMemoryQuadDataset

Implements

IThreadSafeDataset

ISparqlDataset

Inherited Members

BaseTransactionalQuadDataset.AddGraph(IGraph)

BaseTransactionalQuadDataset.RemoveGraph(Uri)

BaseTransactionalQuadDataset.Item[Uri]

BaseTransactionalQuadDataset.GetModifiableGraph(Uri)

BaseTransactionalQuadDataset.Flush()

BaseTransactionalQuadDataset.Discard()

BaseTransactionalQuadDataset.DiscardInternal()

BaseQuadDataset.SetActiveGraph(IEnumerable<Uri>)

BaseQuadDataset.SetActiveGraph(Uri)

BaseQuadDataset.SetDefaultGraph(Uri)

BaseQuadDataset.SetDefaultGraph(IEnumerable<Uri>)

BaseQuadDataset.ResetActiveGraph()

BaseQuadDataset.ResetDefaultGraph()

BaseQuadDataset.DefaultGraphUris

BaseQuadDataset.ActiveGraphUris

BaseQuadDataset.UsesUnionDefaultGraph

BaseQuadDataset.IsDefaultGraph(Uri)

BaseQuadDataset.HasGraph(Uri)

BaseQuadDataset.HasTriples

BaseQuadDataset.ContainsTriple(Triple)

BaseQuadDataset.Triples

BaseQuadDataset.GetTriplesWithSubject(INode)

BaseQuadDataset.GetTriplesWithPredicate(INode)

BaseQuadDataset.GetTriplesWithObject(INode)

BaseQuadDataset.GetTriplesWithSubjectPredicate(INode, INode)

BaseQuadDataset.GetTriplesWithSubjectObject(INode, INode)

BaseQuadDataset.GetTriplesWithPredicateObject(INode, INode)

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: VDS.RDF.Query.Datasets

Assembly: dotNetRDF.dll

Syntax

public class InMemoryQuadDataset : BaseTransactionalQuadDataset, IThreadSafeDataset, ISparqlDataset

Constructors

InMemoryQuadDataset()

Creates a new in-memory dataset using the default in-memory TripleStore as the underlying storage.

Declaration

public InMemoryQuadDataset()

InMemoryQuadDataset(Boolean)

Creates a new in-memory dataset using the default in-memory TripleStore as the underlying storage.

Declaration

public InMemoryQuadDataset(bool unionDefaultGraph)

Parameters

Type	Name	Description
System.Boolean	unionDefaultGraph	Whether the Default Graph when no Active/Default Graph is explicitly set should be the union of all Graphs in the Dataset.

InMemoryQuadDataset(IGraph)

Creates a new in-memory dataset containing initially just the given graph and treating the given graph as the default graph of the dataset.

Declaration

public InMemoryQuadDataset(IGraph g)

Parameters

Type	Name	Description
IGraph	g	Graph.

InMemoryQuadDataset(IInMemoryQueryableStore)

Creates a new In-Memory dataset.

Declaration

public InMemoryQuadDataset(IInMemoryQueryableStore store)

Parameters

Type	Name	Description
IInMemoryQueryableStore	store	In-Memory queryable store.

InMemoryQuadDataset(IInMemoryQueryableStore, Boolean)

Creates a new In-Memory dataset.

Declaration

public InMemoryQuadDataset(IInMemoryQueryableStore store, bool unionDefaultGraph)

Parameters

Type	Name	Description
IInMemoryQueryableStore	store	In-Memory queryable store.
System.Boolean	unionDefaultGraph	Whether the Default Graph when no Active/Default Graph is explicitly set should be the union of all Graphs in the Dataset.

InMemoryQuadDataset(IInMemoryQueryableStore, Uri)

Creates a new In-Memory dataset.

Declaration

public InMemoryQuadDataset(IInMemoryQueryableStore store, Uri defaultGraphUri)

Parameters

Type	Name	Description
IInMemoryQueryableStore	store	In-Memory queryable store.
System.Uri	defaultGraphUri	Default Graph URI.

Properties

Graphs

Gets all the Graphs in the Dataset.

Declaration

public override IEnumerable<IGraph> Graphs { get; }

Property Value

Type	Description
System.Collections.Generic.IEnumerable<IGraph>

Overrides

BaseQuadDataset.Graphs

GraphUris

Gets all the URIs of Graphs in the Dataset.

Declaration

public override IEnumerable<Uri> GraphUris { get; }

Property Value

Type	Description
System.Collections.Generic.IEnumerable<System.Uri>

Overrides

BaseQuadDataset.GraphUris

Lock

Gets the Lock used to ensure MRSW concurrency on the dataset when available.

Declaration

public ReaderWriterLockSlim Lock { get; }

Property Value

Type	Description
System.Threading.ReaderWriterLockSlim

Methods

AddGraphInternal(IGraph)

Adds a Graph to the Dataset merging it with any existing Graph with the same URI.

Declaration

protected override bool AddGraphInternal(IGraph g)

Parameters

Type	Name	Description
IGraph	g	Graph.

Returns

Type	Description
System.Boolean

Overrides

BaseTransactionalQuadDataset.AddGraphInternal(IGraph)

AddQuad(Uri, Triple)

Adds a quad to the dataset.

Declaration

protected override bool AddQuad(Uri graphUri, Triple t)

Parameters

Type	Name	Description
System.Uri	graphUri	Graph URI.
Triple	t	Triple.

Returns

Type	Description
System.Boolean

Overrides

BaseQuadDataset.AddQuad(Uri, Triple)

ContainsQuad(Uri, Triple)

Gets whether the dataset contains a given Quad.

Declaration

protected override bool ContainsQuad(Uri graphUri, Triple t)

Parameters

Type	Name	Description
System.Uri	graphUri	Graph URI.
Triple	t	Triple.

Returns

Type	Description
System.Boolean

Overrides

BaseQuadDataset.ContainsQuad(Uri, Triple)

FlushInternal()

Flushes any changes to the store.

Declaration

protected override void FlushInternal()

Overrides

BaseTransactionalQuadDataset.FlushInternal()

GetGraphInternal(Uri)

Gets the Graph with the given URI from the Dataset.

Declaration

protected override IGraph GetGraphInternal(Uri graphUri)

Parameters

Type	Name	Description
System.Uri	graphUri	Graph URI.

Returns

Type	Description
IGraph

Overrides

BaseQuadDataset.GetGraphInternal(Uri)

Remarks

For In-Memory datasets the Graph returned from this property is no different from the Graph returned by the GetModifiableGraphInternal(Uri) method.

GetModifiableGraphInternal(Uri)

Gets a Modifiable wrapper around a Graph in the Dataset.

Declaration

protected override ITransactionalGraph GetModifiableGraphInternal(Uri graphUri)

Parameters

Type	Name	Description
System.Uri	graphUri	Graph URI.

Returns

Type	Description
ITransactionalGraph

Overrides

BaseTransactionalQuadDataset.GetModifiableGraphInternal(Uri)

GetQuads(Uri)

Gets all quads for a given graph.

Declaration

protected override IEnumerable<Triple> GetQuads(Uri graphUri)

Parameters

Type	Name	Description
System.Uri	graphUri	Graph URI.

Returns

Type	Description
System.Collections.Generic.IEnumerable<Triple>

Overrides

BaseQuadDataset.GetQuads(Uri)

GetQuadsWithObject(Uri, INode)

Gets all Quads with a given object.

Declaration

protected override IEnumerable<Triple> GetQuadsWithObject(Uri graphUri, INode obj)

Parameters

Type	Name	Description
System.Uri	graphUri	Graph URI.
INode	obj	Object.

Returns

Type	Description
System.Collections.Generic.IEnumerable<Triple>

Overrides

BaseQuadDataset.GetQuadsWithObject(Uri, INode)

GetQuadsWithPredicate(Uri, INode)

Gets all Quads with a given predicate.

Declaration

protected override IEnumerable<Triple> GetQuadsWithPredicate(Uri graphUri, INode pred)

Parameters

Type	Name	Description
System.Uri	graphUri	Graph URI.
INode	pred	Predicate.

Returns

Type	Description
System.Collections.Generic.IEnumerable<Triple>

Overrides

BaseQuadDataset.GetQuadsWithPredicate(Uri, INode)

GetQuadsWithPredicateObject(Uri, INode, INode)

Gets all Quads with a given predicate and object.

Declaration

protected override IEnumerable<Triple> GetQuadsWithPredicateObject(Uri graphUri, INode pred, INode obj)

Parameters

Type	Name	Description
System.Uri	graphUri	Graph URI.
INode	pred	Predicate.
INode	obj	Object.

Returns

Type	Description
System.Collections.Generic.IEnumerable<Triple>

Overrides

BaseQuadDataset.GetQuadsWithPredicateObject(Uri, INode, INode)

GetQuadsWithSubject(Uri, INode)

Gets all Quads with a given subject.

Declaration

protected override IEnumerable<Triple> GetQuadsWithSubject(Uri graphUri, INode subj)

Parameters

Type	Name	Description
System.Uri	graphUri	Graph URI.
INode	subj	Subject.

Returns

Type	Description
System.Collections.Generic.IEnumerable<Triple>

Overrides

BaseQuadDataset.GetQuadsWithSubject(Uri, INode)

GetQuadsWithSubjectObject(Uri, INode, INode)

Gets all Quads with a given subject and object.

Declaration

protected override IEnumerable<Triple> GetQuadsWithSubjectObject(Uri graphUri, INode subj, INode obj)

Parameters

Type	Name	Description
System.Uri	graphUri	Graph URI.
INode	subj	Subject.
INode	obj	Object.

Returns

Type	Description
System.Collections.Generic.IEnumerable<Triple>

Overrides

BaseQuadDataset.GetQuadsWithSubjectObject(Uri, INode, INode)

GetQuadsWithSubjectPredicate(Uri, INode, INode)

Gets all Quads with a given subject and predicate.

Declaration

protected override IEnumerable<Triple> GetQuadsWithSubjectPredicate(Uri graphUri, INode subj, INode pred)

Parameters

Type	Name	Description
System.Uri	graphUri	Graph URI.
INode	subj	Subject.
INode	pred	Predicate.

Returns

Type	Description
System.Collections.Generic.IEnumerable<Triple>

Overrides

BaseQuadDataset.GetQuadsWithSubjectPredicate(Uri, INode, INode)

HasGraphInternal(Uri)

Gets whether a Graph with the given URI is the Dataset.

Declaration

protected override bool HasGraphInternal(Uri graphUri)

Parameters

Type	Name	Description
System.Uri	graphUri	Graph URI.

Returns

Type	Description
System.Boolean

Overrides

BaseQuadDataset.HasGraphInternal(Uri)

RemoveGraphInternal(Uri)

Removes a Graph from the Dataset.

Declaration

protected override bool RemoveGraphInternal(Uri graphUri)

Parameters

Type	Name	Description
System.Uri	graphUri	Graph URI.

Returns

Type	Description
System.Boolean

Overrides

BaseTransactionalQuadDataset.RemoveGraphInternal(Uri)

RemoveQuad(Uri, Triple)

Removes a quad from the dataset.

Declaration

protected override bool RemoveQuad(Uri graphUri, Triple t)

Parameters

Type	Name	Description
System.Uri	graphUri	Graph URI.
Triple	t	Triple.

Returns

Type	Description
System.Boolean

Overrides

BaseQuadDataset.RemoveQuad(Uri, Triple)

Implements

IThreadSafeDataset

ISparqlDataset

Extension Methods

Extensions.AsEnumerable<T>(T)