Class QuadDatasetTripleCollection

A Triple Collection which is a thin wrapper around a BaseQuadDataset to reduce much of the complexity for ISparqlDataset implementors around returning of Graphs.

Inheritance

object

BaseTripleCollection

QuadDatasetTripleCollection

Implements

IEnumerable<Triple>

IEnumerable

IDisposable

Inherited Members

BaseTripleCollection.this[(INode s, INode p, INode o)]

BaseTripleCollection.TripleAdded

BaseTripleCollection.TripleRemoved

BaseTripleCollection.RaiseTripleAdded(Triple)

BaseTripleCollection.RaiseTripleRemoved(Triple)

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: VDS.RDF.Query.Datasets

Assembly: dotNetRdf.dll

Syntax

public class QuadDatasetTripleCollection : BaseTripleCollection, IEnumerable<Triple>, IEnumerable, IDisposable

Constructors

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QuadDatasetTripleCollection(BaseQuadDataset, Uri)

Create a new triple collection that exposes a single named graph in a quad dataset.

Declaration

[Obsolete("Replaced by QuadDatasetTripleCollection(BaseQuadDataset, IRefNode)")]
public QuadDatasetTripleCollection(BaseQuadDataset dataset, Uri graphName)

Parameters

Type	Name	Description
BaseQuadDataset	dataset	The dataset to wrap.
Uri	graphName	The URI of the graph to expose through this interface.

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QuadDatasetTripleCollection(BaseQuadDataset, IRefNode)

Create a new triple collection that exposes a single named graph in a quad dataset.

Declaration

public QuadDatasetTripleCollection(BaseQuadDataset dataset, IRefNode graphName)

Parameters

Type	Name	Description
BaseQuadDataset	dataset	The dataset to wrap.
IRefNode	graphName	The URI of the graph to expose through this interface.

Properties

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Asserted

Gets the triples that are asserted in the collection.

Declaration

public override IEnumerable<Triple> Asserted { get; }

Property Value

Type	Description
IEnumerable<Triple>

Overrides

BaseTripleCollection.Asserted

Remarks

This returns the same set of triples as the enumerator on this class, but as an IEnumerable<T> instance.

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Count

Gets the number of asserted triples in the triple collection.

Declaration

public override int Count { get; }

Property Value

Type	Description
int

Overrides

BaseTripleCollection.Count

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this[Triple]

Gets the given triple.

Declaration

public override Triple this[Triple t] { get; }

Parameters

Type	Name	Description
Triple	t	Triple to retrieve.

Property Value

Type	Description
Triple

Overrides

BaseTripleCollection.this[Triple]

Exceptions

Type	Condition
KeyNotFoundException	Thrown if the given Triple doesn't exist.

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ObjectNodes

Gets all the nodes which are objects of asserted triples in the triple collection.

Declaration

public override IEnumerable<INode> ObjectNodes { get; }

Property Value

Type	Description
IEnumerable<INode>

Overrides

BaseTripleCollection.ObjectNodes

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PredicateNodes

Gets all the nodes which are predicates of asserted triples in the triple collection.

Declaration

public override IEnumerable<INode> PredicateNodes { get; }

Property Value

Type	Description
IEnumerable<INode>

Overrides

BaseTripleCollection.PredicateNodes

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Quoted

Gets the triples that are quoted in the collection.

Declaration

public override IEnumerable<Triple> Quoted { get; }

Property Value

Type	Description
IEnumerable<Triple>

Overrides

BaseTripleCollection.Quoted

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QuotedCount

Gets the number of quoted triples in the triple collection.

Declaration

public override int QuotedCount { get; }

Property Value

Type	Description
int

Overrides

BaseTripleCollection.QuotedCount

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QuotedObjectNodes

Gets all the nodes which are subjects of quoted triples in the triple collection.

Declaration

public override IEnumerable<INode> QuotedObjectNodes { get; }

Property Value

Type	Description
IEnumerable<INode>

Overrides

BaseTripleCollection.QuotedObjectNodes

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QuotedPredicateNodes

Gets all the nodes which are predicates of quoted triples in the triple collection.

Declaration

public override IEnumerable<INode> QuotedPredicateNodes { get; }

Property Value

Type	Description
IEnumerable<INode>

Overrides

BaseTripleCollection.QuotedPredicateNodes

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QuotedSubjectNodes

Gets all the nodes which are objects of quoted triples in the triple collection.

Declaration

public override IEnumerable<INode> QuotedSubjectNodes { get; }

Property Value

Type	Description
IEnumerable<INode>

Overrides

BaseTripleCollection.QuotedSubjectNodes

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SubjectNodes

Gets all the nodes which are subjects of asserted triples in the triple collection.

Declaration

public override IEnumerable<INode> SubjectNodes { get; }

Property Value

Type	Description
IEnumerable<INode>

Overrides

BaseTripleCollection.SubjectNodes

Methods

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Add(Triple)

Adds a Triple to the Collection.

Declaration

protected override bool Add(Triple t)

Parameters

Type	Name	Description
Triple	t	Triple to add.

Returns

Type	Description
bool

Overrides

BaseTripleCollection.Add(Triple)

Remarks

Adding a Triple that already exists should be permitted though it is not necessary to persist the duplicate to underlying storage.

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Contains(Triple)

Determines whether a given Triple is asserted in the Triple Collection.

Declaration

public override bool Contains(Triple t)

Parameters

Type	Name	Description
Triple	t	The Triple to test.

Returns

Type	Description
bool	True if the triple exists as an asserted triple in the collection.

Overrides

BaseTripleCollection.Contains(Triple)

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ContainsQuoted(Triple)

Determines whether a given triple is quoted by a triple node of a triple in the collection.

Declaration

public override bool ContainsQuoted(Triple t)

Parameters

Type	Name	Description
Triple	t	The triple to test.

Returns

Type	Description
bool	True if the triple is quoted in the triple collection, false otherwise.

Overrides

BaseTripleCollection.ContainsQuoted(Triple)

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Delete(Triple)

Deletes an asserted triple from the collection.

Declaration

protected override bool Delete(Triple t)

Parameters

Type	Name	Description
Triple	t	Triple to remove.

Returns

Type	Description
bool	True if the operation removed an asserted triple from the collection, false otherwise.

Overrides

BaseTripleCollection.Delete(Triple)

Remarks

Deleting a triple that is not asserted in the collection should have no effect and give no error. Quoted triples cannot be removed from the collection via this method - instead they should be automatically removed when all asserted triples that reference them are removed. Deleting a triple that is both asserted and quoted will remove the assertion of the triple (and return true), but the triple will remain in the collection as a quoted triples.

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Dispose()

Disposes of a Triple Collection.

Declaration

public override void Dispose()

Overrides

BaseTripleCollection.Dispose()

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GetEnumerator()

Gets the typed Enumerator for the Triple Collection.

Declaration

public override IEnumerator<Triple> GetEnumerator()

Returns

Type	Description
IEnumerator<Triple>	An enumerator over the asserted triples in the triple collection.

Overrides

BaseTripleCollection.GetEnumerator()

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QuotedWithObject(INode)

Gets all the quoted triples with the given Object.

Declaration

public override IEnumerable<Triple> QuotedWithObject(INode obj)

Parameters

Type	Name	Description
INode	obj	Object to lookup.

Returns

Type	Description
IEnumerable<Triple>

Overrides

BaseTripleCollection.QuotedWithObject(INode)

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QuotedWithPredicate(INode)

Gets all the quoted triples with the given Predicate.

Declaration

public override IEnumerable<Triple> QuotedWithPredicate(INode pred)

Parameters

Type	Name	Description
INode	pred	Predicate to lookup.

Returns

Type	Description
IEnumerable<Triple>

Overrides

BaseTripleCollection.QuotedWithPredicate(INode)

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QuotedWithPredicateObject(INode, INode)

Gets all the quoted triples with the given Predicate Object pair.

Declaration

public override IEnumerable<Triple> QuotedWithPredicateObject(INode pred, INode obj)

Parameters

Type	Name	Description
INode	pred	Predicate to lookup.
INode	obj	Object to lookup.

Returns

Type	Description
IEnumerable<Triple>

Overrides

BaseTripleCollection.QuotedWithPredicateObject(INode, INode)

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QuotedWithSubject(INode)

Gets all quoted triples with the given subject.

Declaration

public override IEnumerable<Triple> QuotedWithSubject(INode subj)

Parameters

Type	Name	Description
INode	subj	Subject to lookup.

Returns

Type	Description
IEnumerable<Triple>

Overrides

BaseTripleCollection.QuotedWithSubject(INode)

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QuotedWithSubjectObject(INode, INode)

Gets all the quoted triples with the given Subject Object pair.

Declaration

public override IEnumerable<Triple> QuotedWithSubjectObject(INode subj, INode obj)

Parameters

Type	Name	Description
INode	subj	Subject to lookup.
INode	obj	Object to lookup.

Returns

Type	Description
IEnumerable<Triple>

Overrides

BaseTripleCollection.QuotedWithSubjectObject(INode, INode)

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QuotedWithSubjectPredicate(INode, INode)

Gets all the quoted triples with the given Subject Predicate pair.

Declaration

public override IEnumerable<Triple> QuotedWithSubjectPredicate(INode subj, INode pred)

Parameters

Type	Name	Description
INode	subj	Subject to lookup.
INode	pred	Predicate to lookup.

Returns

Type	Description
IEnumerable<Triple>

Overrides

BaseTripleCollection.QuotedWithSubjectPredicate(INode, INode)

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WithObject(INode)

Gets all the asserted triples with the given object.

Declaration

public override IEnumerable<Triple> WithObject(INode obj)

Parameters

Type	Name	Description
INode	obj	Object to lookup.

Returns

Type	Description
IEnumerable<Triple>

Overrides

BaseTripleCollection.WithObject(INode)

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WithPredicate(INode)

Gets all the asserted triples with the given predicate.

Declaration

public override IEnumerable<Triple> WithPredicate(INode pred)

Parameters

Type	Name	Description
INode	pred	Predicate to lookup.

Returns

Type	Description
IEnumerable<Triple>

Overrides

BaseTripleCollection.WithPredicate(INode)

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WithPredicateObject(INode, INode)

Gets all the Triples with the given Predicate Object pair.

Declaration

public override IEnumerable<Triple> WithPredicateObject(INode pred, INode obj)

Parameters

Type	Name	Description
INode	pred	Predicate to lookup.
INode	obj	Object to lookup.

Returns

Type	Description
IEnumerable<Triple>

Overrides

BaseTripleCollection.WithPredicateObject(INode, INode)

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WithSubject(INode)

Gets all the asserted triples with the given subject.

Declaration

public override IEnumerable<Triple> WithSubject(INode subj)

Parameters

Type	Name	Description
INode	subj	Subject to lookup.

Returns

Type	Description
IEnumerable<Triple>

Overrides

BaseTripleCollection.WithSubject(INode)

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WithSubjectObject(INode, INode)

Gets all the Triples with the given Subject Object pair.

Declaration

public override IEnumerable<Triple> WithSubjectObject(INode subj, INode obj)

Parameters

Type	Name	Description
INode	subj	Subject to lookup.
INode	obj	Object to lookup.

Returns

Type	Description
IEnumerable<Triple>

Overrides

BaseTripleCollection.WithSubjectObject(INode, INode)

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WithSubjectPredicate(INode, INode)

Gets all the asserted triples with the given subject/predicate pair.

Declaration

public override IEnumerable<Triple> WithSubjectPredicate(INode subj, INode pred)

Parameters

Type	Name	Description
INode	subj	Subject to lookup.
INode	pred	Predicate to lookup.

Returns

Type	Description
IEnumerable<Triple>