Class BaseQuadDataset

Abstract Base class of dataset designed around out of memory datasets where you rarely wish to load data into memory but simply wish to know which graph to look in for data.

Inheritance

System.Object

BaseQuadDataset

BaseImmutableQuadDataset

BaseTransactionalQuadDataset

Implements

ISparqlDataset

Inherited Members

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 abstract class BaseQuadDataset : ISparqlDataset

Constructors

| Improve this Doc View Source

BaseQuadDataset()

Creates a new Quad Dataset.

Declaration

public BaseQuadDataset()

| Improve this Doc View Source

BaseQuadDataset(Boolean)

Creates a new Quad Dataset.

Declaration

public BaseQuadDataset(bool unionDefaultGraph)

Parameters

Type	Name	Description
System.Boolean	unionDefaultGraph	Whether to make the default graph the union of all graphs.

| Improve this Doc View Source

BaseQuadDataset(Uri)

Creates a new Quad Dataset.

Declaration

public BaseQuadDataset(Uri defaultGraphUri)

Parameters

Type	Name	Description
System.Uri	defaultGraphUri	URI of the Default Graph.

Properties

| Improve this Doc View Source

ActiveGraphUris

Gets the Active Graph URIs.

Declaration

public IEnumerable<Uri> ActiveGraphUris { get; }

Property Value

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

| Improve this Doc View Source

DefaultGraphUris

Gets the Default Graph URIs.

Declaration

public IEnumerable<Uri> DefaultGraphUris { get; }

Property Value

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

| Improve this Doc View Source

Graphs

Gets the Graphs in the dataset.

Declaration

public virtual IEnumerable<IGraph> Graphs { get; }

Property Value

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

| Improve this Doc View Source

GraphUris

Gets the URIs of the graphs in the dataset.

Declaration

public abstract IEnumerable<Uri> GraphUris { get; }

Property Value

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

| Improve this Doc View Source

HasTriples

Gets whether the dataset has any triples.

Declaration

public virtual bool HasTriples { get; }

Property Value

Type	Description
System.Boolean

| Improve this Doc View Source

Item[Uri]

Gets the Graph with the given URI from the Dataset.

Declaration

public virtual IGraph this[Uri graphUri] { get; }

Parameters

Type	Name	Description
System.Uri	graphUri	Graph URI.

Property Value

Type	Description
IGraph

Remarks

This property need only return a read-only view of the Graph, code which wishes to modify Graphs should use the GetModifiableGraph(Uri) method to guarantee a Graph they can modify and will be persisted to the underlying storage.

| Improve this Doc View Source

Triples

Gets all triples from the dataset.

Declaration

public IEnumerable<Triple> Triples { get; }

Property Value

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

| Improve this Doc View Source

UsesUnionDefaultGraph

Gets whether this dataset uses a union default graph.

Declaration

public bool UsesUnionDefaultGraph { get; }

Property Value

Type	Description
System.Boolean

Methods

| Improve this Doc View Source

AddGraph(IGraph)

Adds a Graph to the dataset.

Declaration

public virtual bool AddGraph(IGraph g)

Parameters

Type	Name	Description
IGraph	g	Graph.

Returns

Type	Description
System.Boolean

| Improve this Doc View Source

AddQuad(Uri, Triple)

Adds a Quad to the Dataset.

Declaration

protected abstract bool AddQuad(Uri graphUri, Triple t)

Parameters

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

Returns

Type	Description
System.Boolean

| Improve this Doc View Source

ContainsQuad(Uri, Triple)

Gets whether a Triple exists in a specific Graph of the dataset.

Declaration

protected abstract bool ContainsQuad(Uri graphUri, Triple t)

Parameters

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

Returns

Type	Description
System.Boolean

| Improve this Doc View Source

ContainsTriple(Triple)

Gets whether the dataset contains a triple.

Declaration

public bool ContainsTriple(Triple t)

Parameters

Type	Name	Description
Triple	t	Triple.

Returns

Type	Description
System.Boolean

| Improve this Doc View Source

Discard()

Discards any changes to the dataset.

Declaration

public virtual void Discard()

| Improve this Doc View Source

Flush()

Flushes any changes to the dataset.

Declaration

public virtual void Flush()

| Improve this Doc View Source

GetGraphInternal(Uri)

Gets a Graph from the dataset.

Declaration

protected abstract IGraph GetGraphInternal(Uri graphUri)

Parameters

Type	Name	Description
System.Uri	graphUri	Graph URI.

Returns

Type	Description
IGraph

| Improve this Doc View Source

GetModifiableGraph(Uri)

Gets a modifiable graph from the dataset.

Declaration

public virtual IGraph GetModifiableGraph(Uri graphUri)

Parameters

Type	Name	Description
System.Uri	graphUri	Graph URI.

Returns

Type	Description
IGraph

| Improve this Doc View Source

GetQuads(Uri)

Gets all the Triples for a specific graph of the dataset.

Declaration

protected abstract IEnumerable<Triple> GetQuads(Uri graphUri)

Parameters

Type	Name	Description
System.Uri	graphUri	Graph URI.

Returns

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

| Improve this Doc View Source

GetQuadsWithObject(Uri, INode)

Gets all the Triples with a given object from a specific graph of the dataset.

Declaration

protected abstract 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>

| Improve this Doc View Source

GetQuadsWithPredicate(Uri, INode)

Gets all the Triples with a given predicate from a specific graph of the dataset.

Declaration

protected abstract 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>

| Improve this Doc View Source

GetQuadsWithPredicateObject(Uri, INode, INode)

Gets all the Triples with a given predicate and object from a specific graph of the dataset.

Declaration

protected abstract 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>

| Improve this Doc View Source

GetQuadsWithSubject(Uri, INode)

Gets all the Triples with a given subject from a specific graph of the dataset.

Declaration

protected abstract 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>

| Improve this Doc View Source

GetQuadsWithSubjectObject(Uri, INode, INode)

Gets all the Triples with a given subject and object from a specific graph of the dataset.

Declaration

protected abstract 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>

| Improve this Doc View Source

GetQuadsWithSubjectPredicate(Uri, INode, INode)

Gets all the Triples with a given subject and predicate from a specific graph of the dataset.

Declaration

protected abstract 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>

| Improve this Doc View Source

GetTriplesWithObject(INode)

Gets all the Triples with a given object.

Declaration

public IEnumerable<Triple> GetTriplesWithObject(INode obj)

Parameters

Type	Name	Description
INode	obj	Object.

Returns

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

| Improve this Doc View Source

GetTriplesWithPredicate(INode)

Gets all the Triples with a given predicate.

Declaration

public IEnumerable<Triple> GetTriplesWithPredicate(INode pred)

Parameters

Type	Name	Description
INode	pred	Predicate.

Returns

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

| Improve this Doc View Source

GetTriplesWithPredicateObject(INode, INode)

Gets all the Triples with a given predicate and object.

Declaration

public IEnumerable<Triple> GetTriplesWithPredicateObject(INode pred, INode obj)

Parameters

Type	Name	Description
INode	pred	Predicate.
INode	obj	Object.

Returns

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

| Improve this Doc View Source

GetTriplesWithSubject(INode)

Gets all the Triples with a given subject.

Declaration

public IEnumerable<Triple> GetTriplesWithSubject(INode subj)

Parameters

Type	Name	Description
INode	subj	Subject.

Returns

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

| Improve this Doc View Source

GetTriplesWithSubjectObject(INode, INode)

Gets all the Triples with a given subject and object.

Declaration

public IEnumerable<Triple> GetTriplesWithSubjectObject(INode subj, INode obj)

Parameters

Type	Name	Description
INode	subj	Subject.
INode	obj	Object.

Returns

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

| Improve this Doc View Source

GetTriplesWithSubjectPredicate(INode, INode)

Gets all the Triples with a given subject and predicate.

Declaration

public IEnumerable<Triple> GetTriplesWithSubjectPredicate(INode subj, INode pred)

Parameters

Type	Name	Description
INode	subj	Subject.
INode	pred	Predicate.

Returns

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

| Improve this Doc View Source

HasGraph(Uri)

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

Declaration

public bool HasGraph(Uri graphUri)

Parameters

Type	Name	Description
System.Uri	graphUri	Graph URI.

Returns

Type	Description
System.Boolean

| Improve this Doc View Source

HasGraphInternal(Uri)

Determines whether a given Graph exists in the Dataset.

Declaration

protected abstract bool HasGraphInternal(Uri graphUri)

Parameters

Type	Name	Description
System.Uri	graphUri	Graph URI.

Returns

Type	Description
System.Boolean

| Improve this Doc View Source

IsDefaultGraph(Uri)

Gets whether the given URI represents the default graph of the dataset.

Declaration

protected bool IsDefaultGraph(Uri graphUri)

Parameters

Type	Name	Description
System.Uri	graphUri	Graph URI.

Returns

Type	Description
System.Boolean

| Improve this Doc View Source

RemoveGraph(Uri)

Removes a Graph from the Dataset.

Declaration

public abstract bool RemoveGraph(Uri graphUri)

Parameters

Type	Name	Description
System.Uri	graphUri	Graph URI.

Returns

Type	Description
System.Boolean

| Improve this Doc View Source

RemoveQuad(Uri, Triple)

Removes a Quad from the Dataset.

Declaration

protected abstract bool RemoveQuad(Uri graphUri, Triple t)

Parameters

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

Returns

Type	Description
System.Boolean

| Improve this Doc View Source

ResetActiveGraph()

Resets the Active Graph.

Declaration

public void ResetActiveGraph()

| Improve this Doc View Source

ResetDefaultGraph()

Resets the Default Graph.

Declaration

public void ResetDefaultGraph()

| Improve this Doc View Source

SetActiveGraph(IEnumerable<Uri>)

Sets the Active Graph.

Declaration

public void SetActiveGraph(IEnumerable<Uri> graphUris)

Parameters

Type	Name	Description
System.Collections.Generic.IEnumerable<System.Uri>	graphUris	Graph URIs.

| Improve this Doc View Source

SetActiveGraph(Uri)

Sets the Active Graph.

Declaration

public void SetActiveGraph(Uri graphUri)

Parameters

Type	Name	Description
System.Uri	graphUri	Graph URI.

| Improve this Doc View Source

SetDefaultGraph(IEnumerable<Uri>)

Sets the Default Graph.

Declaration

public void SetDefaultGraph(IEnumerable<Uri> graphUris)

Parameters

Type	Name	Description
System.Collections.Generic.IEnumerable<System.Uri>	graphUris	Graph URIs.

| Improve this Doc View Source

SetDefaultGraph(Uri)

Sets the Default Graph.

Declaration

public void SetDefaultGraph(Uri graphUri)

Parameters

Type	Name	Description
System.Uri	graphUri	Graph URI.

Implements

ISparqlDataset

Extension Methods

Extensions.AsEnumerable<T>(T)