Class UnionTripleCollection

Represents a union of multiple Triple Collections.

Inheritance
object
BaseTripleCollection
UnionTripleCollection
Implements
Inherited Members
Namespace: VDS.RDF
Assembly: dotNetRdf.dll
Syntax
public class UnionTripleCollection : BaseTripleCollection, IEnumerable<Triple>, IEnumerable, IDisposable
Remarks

The union consists of a Base collection which is the collection that Triples can actually be added to and deleted from and any number of additional collections which are read-only as far as the union is concerned (this does not mean they cannot be altered elsewhere by other code).

Constructors

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UnionTripleCollection(BaseTripleCollection, IEnumerable<BaseTripleCollection>)

Creates a new Union Triple Collection which is a union of any number of collections.

Declaration
public UnionTripleCollection(BaseTripleCollection baseTriples, IEnumerable<BaseTripleCollection> additionalTriples)
Parameters
Type Name Description
BaseTripleCollection baseTriples

Base Triple Collection.
IEnumerable<BaseTripleCollection> additionalTriples

Additional Triple Collection(s).
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UnionTripleCollection(BaseTripleCollection, BaseTripleCollection)

Creates a new Union Triple Collection which is a union of two collections.

Declaration
public UnionTripleCollection(BaseTripleCollection baseTriples, BaseTripleCollection additionalTriples)
Parameters
Type Name Description
BaseTripleCollection baseTriples

Base Triple Collection.
BaseTripleCollection additionalTriples

Additional Triple Collection.

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
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 count of Triples in this union.

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

The Count is the total number of Triples, this may be different from the number of distinct triples.

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this[Triple]

Retrieves a Triple from the union.

Declaration
public override Triple this[Triple t] { get; }
Parameters
Type Name Description
Triple t

Triple to retrieve.
Property Value
Type Description
Triple
Overrides
Exceptions
Type Condition
KeyNotFoundException

Thrown if the Triple is not contained in any of the collections this union comprises.
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ObjectNodes

Gets the enumeration of distinct objects of Triples.

Declaration
public override IEnumerable<INode> ObjectNodes { get; }
Property Value
Type Description
IEnumerable<INode>
Overrides
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PredicateNodes

Gets the enumeration of distinct predicates of Triples.

Declaration
public override IEnumerable<INode> PredicateNodes { get; }
Property Value
Type Description
IEnumerable<INode>
Overrides
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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
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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
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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
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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
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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
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SubjectNodes

Gets the enumeration of distinct subjects of Triples.

Declaration
public override IEnumerable<INode> SubjectNodes { get; }
Property Value
Type Description
IEnumerable<INode>
Overrides

Methods

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Add(Triple)

Adds a Triple to the base collection.

Declaration
protected override bool Add(Triple t)
Parameters
Type Name Description
Triple t

Triple to add.
Returns
Type Description
bool
Overrides
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Contains(Triple)

Checks whether the union contains this Triple in any of the collections it comprises.

Declaration
public override bool Contains(Triple t)
Parameters
Type Name Description
Triple t

Triple to test.
Returns
Type Description
bool
Overrides
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ContainsQuoted(Triple)

Checks whether the specified triple is quoted in any of the collections of the union.

Declaration
public override bool ContainsQuoted(Triple t)
Parameters
Type Name Description
Triple t

Triple to test.
Returns
Type Description
bool
Overrides
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Delete(Triple)

Deletes a Triple from the base collection.

Declaration
protected override bool Delete(Triple t)
Parameters
Type Name Description
Triple t

Triple to delete.
Returns
Type Description
bool
Overrides
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GetEnumerator()

Gets the enumeration of Triples in the union.

Declaration
public override IEnumerator<Triple> GetEnumerator()
Returns
Type Description
IEnumerator<Triple>
Overrides

Implements

Extension Methods