Interface ITripleStore

Interface for Triple Stores.
Inherited Members
System.IDisposable.Dispose()
Namespace: VDS.RDF
Assembly: dotNetRDF.dll
Syntax
public interface ITripleStore : IDisposable
Remarks
A Triple Store may be a representation of some storage backed actual store or just a temporary collection of Graphs created for working with. Note that an implementation is not required to provide a definitive view of a Triple Store and may only provide a limited/partial snapshot of the underlying store. Check the documentation for the various implementations to see what type of view of a Triple Store they actually provide.

Properties

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Graphs

Gets the Graph Collection of Graphs in this Triple Store.
Declaration
BaseGraphCollection Graphs { get; }
Property Value
Type Description
BaseGraphCollection
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IsEmpty

Gets whether a TripleStore is Empty.
Declaration
bool IsEmpty { get; }
Property Value
Type Description
System.Boolean
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Item[Uri]

Gets a Graph from the Triple Store;.
Declaration
IGraph this[Uri graphUri] { get; }
Parameters
Type Name Description
System.Uri graphUri Graph URI.
Property Value
Type Description
IGraph
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Triples

Gets all the Triples in the Triple Store which are currently loaded in memory (see remarks).
Declaration
IEnumerable<Triple> Triples { get; }
Property Value
Type Description
System.Collections.Generic.IEnumerable<Triple>
Remarks
Since a Triple Store object may represent only a snapshot of the underlying Store evaluating this enumerator may only return some of the Triples in the Store and may depending on specific Triple Store return nothing.

Methods

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Add(IGraph)

Adds a Graph into the Triple Store.
Declaration
bool Add(IGraph g)
Parameters
Type Name Description
IGraph g Graph to add.
Returns
Type Description
System.Boolean
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Add(IGraph, Boolean)

Adds a Graph into the Triple Store.
Declaration
bool Add(IGraph g, bool mergeIfExists)
Parameters
Type Name Description
IGraph g Graph to add.
System.Boolean mergeIfExists Controls whether the Graph should be merged with an existing Graph of the same Uri if it already exists in the Triple Store.
Returns
Type Description
System.Boolean
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AddFromUri(Uri)

Adds a Graph into the Triple Store by dereferencing the Graph Uri to get the RDF and then load the resulting Graph into the Triple Store.
Declaration
bool AddFromUri(Uri graphUri)
Parameters
Type Name Description
System.Uri graphUri Uri of the Graph to be added.
Returns
Type Description
System.Boolean
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AddFromUri(Uri, Boolean)

Adds a Graph into the Triple Store by dereferencing the Graph Uri to get the RDF and then load the resulting Graph into the Triple Store.
Declaration
bool AddFromUri(Uri graphUri, bool mergeIfExists)
Parameters
Type Name Description
System.Uri graphUri Uri of the Graph to be added.
System.Boolean mergeIfExists Controls whether the Graph should be merged with an existing Graph of the same Uri if it already exists in the Triple Store.
Returns
Type Description
System.Boolean
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HasGraph(Uri)

Checks whether the Graph with the given Uri is in this Triple Store.
Declaration
bool HasGraph(Uri graphUri)
Parameters
Type Name Description
System.Uri graphUri Graph Uri.
Returns
Type Description
System.Boolean
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Remove(Uri)

Removes a Graph from the Triple Store.
Declaration
bool Remove(Uri graphUri)
Parameters
Type Name Description
System.Uri graphUri Graph Uri of the Graph to remove.
Returns
Type Description
System.Boolean

Events

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GraphAdded

Event which is raised when a Graph is added
Declaration
event TripleStoreEventHandler GraphAdded
Event Type
Type Description
TripleStoreEventHandler
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GraphChanged

Event which is raised when a Graphs contents changes
Declaration
event TripleStoreEventHandler GraphChanged
Event Type
Type Description
TripleStoreEventHandler
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GraphCleared

Event which is raised when a Graph is cleared
Declaration
event TripleStoreEventHandler GraphCleared
Event Type
Type Description
TripleStoreEventHandler
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GraphMerged

Event which is raised when a Graph has a merge operation performed on it
Declaration
event TripleStoreEventHandler GraphMerged
Event Type
Type Description
TripleStoreEventHandler
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GraphRemoved

Event which is raised when a Graph is removed
Declaration
event TripleStoreEventHandler GraphRemoved
Event Type
Type Description
TripleStoreEventHandler

Extension Methods