Class WrapperTripleStore

Abstract decorator for Triple Stores to make it easier to add new functionality on top of existing implementations.

Inheritance
System.Object
WrapperTripleStore
Implements
System.IDisposable
Inherited Members
object.Equals(object)
object.Equals(object, object)
object.GetHashCode()
object.GetType()
object.MemberwiseClone()
object.ReferenceEquals(object, object)
object.ToString()
Namespace: VDS.RDF
Assembly: dotNetRdf.dll
Syntax
public class WrapperTripleStore : ITripleStore, IDisposable

Constructors

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WrapperTripleStore(ITripleStore)

Creates a new triple store decorator around the given ITripleStore instance.

Declaration
public WrapperTripleStore(ITripleStore store)
Parameters
Type Name Description
ITripleStore store

Triple Store.

Fields

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_store

Underlying store.

Declaration
protected readonly ITripleStore _store
Field Value
Type Description
ITripleStore

Properties

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Graphs

Gets the Graphs of the store.

Declaration
public virtual BaseGraphCollection Graphs { get; }
Property Value
Type Description
BaseGraphCollection
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IsEmpty

Gets whether the store is empty.

Declaration
public virtual bool IsEmpty { get; }
Property Value
Type Description
System.Boolean
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this[Uri]

Gets a Graph from the store.

Declaration
[Obsolete("Replaced by this[IRefNode]")]
public virtual IGraph this[Uri graphUri] { get; }
Parameters
Type Name Description
System.Uri graphUri

Graph URI.
Property Value
Type Description
IGraph
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this[IRefNode]

Gets a graph from the triple store.

Declaration
public virtual IGraph this[IRefNode graphName] { get; }
Parameters
Type Name Description
IRefNode graphName

The name of the graph to be retrieved. May be null to retrieve the default (unnamed) graph.
Property Value
Type Description
IGraph
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Triples

Gets the triples of the store.

Declaration
public virtual IEnumerable<Triple> Triples { get; }
Property Value
Type Description
System.Collections.Generic.IEnumerable<T><Triple>
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UriFactory

Get the preferred URI factory to use when creating URIs in this store.

Declaration
public virtual IUriFactory UriFactory { get; }
Property Value
Type Description
IUriFactory

Methods

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Add(IGraph, bool)

Adds a Graph to the store.

Declaration
public virtual bool Add(IGraph g, bool mergeIfExists)
Parameters
Type Name Description
IGraph g

Graph.
System.Boolean mergeIfExists

Whether to merge with an existing graph with the same URI.
Returns
Type Description
System.Boolean
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Add(IGraph)

Adds a Graph to the store.

Declaration
public virtual bool Add(IGraph g)
Parameters
Type Name Description
IGraph g

Graph.
Returns
Type Description
System.Boolean
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AddFromUri(Uri, bool, Loader)

Adds a Graph to the store from a URI.

Declaration
public virtual bool AddFromUri(Uri graphUri, bool mergeIfExists, Loader loader)
Parameters
Type Name Description
System.Uri graphUri

Graph URI.
System.Boolean mergeIfExists

Whether to merge with an existing graph with the same URI.
Loader loader

The loader to use for retrieving and parsing the RDF data.
Returns
Type Description
System.Boolean
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AddFromUri(Uri, bool)

Adds a Graph to the store from a URI.

Declaration
public virtual bool AddFromUri(Uri graphUri, bool mergeIfExists)
Parameters
Type Name Description
System.Uri graphUri

Graph URI.
System.Boolean mergeIfExists

Whether to merge with an existing graph with the same URI.
Returns
Type Description
System.Boolean
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AddFromUri(Uri)

Adds a Graph to the store from a URI.

Declaration
public virtual bool AddFromUri(Uri graphUri)
Parameters
Type Name Description
System.Uri graphUri

Graph URI.
Returns
Type Description
System.Boolean
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Dispose()

Disposes of the Triple Store.

Declaration
public virtual void Dispose()
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HasGraph(Uri)

Gets whether a Graph exists in the store.

Declaration
[Obsolete("Replaced by HasGraph(IRefNode)")]
public virtual bool HasGraph(Uri graphUri)
Parameters
Type Name Description
System.Uri graphUri

Graph URI.
Returns
Type Description
System.Boolean
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HasGraph(IRefNode)

Checks whether the graph with the given name is in this triple store.

Declaration
public virtual bool HasGraph(IRefNode graphName)
Parameters
Type Name Description
IRefNode graphName

The name of the graph to check for.
Returns
Type Description
System.Boolean

True if this store contains a graph with the specified name, false otherwise.
Remarks

Pass null forgraphName to check for the default (unnamed) graph.

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OnGraphAdded(object, TripleStoreEventArgs)

Event Handler which handles the Graph Added event from the underlying Graph Collection and raises the Triple Store's Graph Added event.

Declaration
protected virtual void OnGraphAdded(object sender, TripleStoreEventArgs args)
Parameters
Type Name Description
System.Object sender

Sender.
TripleStoreEventArgs args

Graph Event Arguments.
Remarks

Override this method if your Triple Store implementation wishes to take additional actions when a Graph is added to the Store.

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OnGraphChanged(object, TripleStoreEventArgs)

Event Handler which handles the Changed event of the contained Graphs by raising the Triple Store's Graph Changed event.

Declaration
protected virtual void OnGraphChanged(object sender, TripleStoreEventArgs args)
Parameters
Type Name Description
System.Object sender

Sender.
TripleStoreEventArgs args

Graph Event Arguments.
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OnGraphCleared(object, TripleStoreEventArgs)

Event Handler which handles the Cleared event of the contained Graphs by raising the Triple Stores's Graph Cleared event.

Declaration
protected virtual void OnGraphCleared(object sender, TripleStoreEventArgs args)
Parameters
Type Name Description
System.Object sender

Sender.
TripleStoreEventArgs args

Graph Event Arguments.
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OnGraphMerged(object, TripleStoreEventArgs)

Event Handler which handles the Merged event of the contained Graphs by raising the Triple Store's Graph Merged event.

Declaration
protected virtual void OnGraphMerged(object sender, TripleStoreEventArgs args)
Parameters
Type Name Description
System.Object sender

Sender.
TripleStoreEventArgs args

Graph Event Arguments.
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OnGraphRemoved(object, TripleStoreEventArgs)

Event Handler which handles the Graph Removed event from the underlying Graph Collection and raises the Triple Stores's Graph Removed event.

Declaration
protected virtual void OnGraphRemoved(object sender, TripleStoreEventArgs args)
Parameters
Type Name Description
System.Object sender

Sender.
TripleStoreEventArgs args

Graph Event Arguments.
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RaiseGraphAdded(GraphEventArgs)

Helper method for raising the Graph Added event manually.

Declaration
protected void RaiseGraphAdded(GraphEventArgs args)
Parameters
Type Name Description
GraphEventArgs args

Graph Event Arguments.
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RaiseGraphAdded(IGraph)

Helper method for raising the Graph Added event manually.

Declaration
protected void RaiseGraphAdded(IGraph g)
Parameters
Type Name Description
IGraph g

Graph.
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RaiseGraphChanged(GraphEventArgs)

Helper method for raising the Graph Changed event manually.

Declaration
protected void RaiseGraphChanged(GraphEventArgs args)
Parameters
Type Name Description
GraphEventArgs args

Graph Event Arguments.
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RaiseGraphChanged(IGraph)

Helper method for raising the Graph Changed event manually.

Declaration
protected void RaiseGraphChanged(IGraph g)
Parameters
Type Name Description
IGraph g

Graph.
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RaiseGraphCleared(GraphEventArgs)

Helper method for raising the Graph Cleared event manually.

Declaration
protected void RaiseGraphCleared(GraphEventArgs args)
Parameters
Type Name Description
GraphEventArgs args

Graph Event Arguments.
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RaiseGraphMerged(GraphEventArgs)

Helper method for raising the Graph Merged event manually.

Declaration
protected void RaiseGraphMerged(GraphEventArgs args)
Parameters
Type Name Description
GraphEventArgs args

Graph Event Arguments.
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RaiseGraphRemoved(GraphEventArgs)

Helper method for raising the Graph Removed event manually.

Declaration
protected void RaiseGraphRemoved(GraphEventArgs args)
Parameters
Type Name Description
GraphEventArgs args

Graph Event Arguments.
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RaiseGraphRemoved(IGraph)

Helper method for raising the Graph Removed event manually.

Declaration
protected void RaiseGraphRemoved(IGraph g)
Parameters
Type Name Description
IGraph g

Graph.
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Remove(Uri)

Removes a Graph from the store.

Declaration
[Obsolete("Replaced by Remove(IRefNode)")]
public virtual bool Remove(Uri graphUri)
Parameters
Type Name Description
System.Uri graphUri

Graph URI.
Returns
Type Description
System.Boolean
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Remove(IRefNode)

Removes a graph from the triple store.

Declaration
public virtual bool Remove(IRefNode graphName)
Parameters
Type Name Description
IRefNode graphName

The name of the graph to remove.
Returns
Type Description
System.Boolean

True if the operation removed a graph, false if no matching graph was found to remove.

Events

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GraphAdded

Event which is raised when a graph is added

Declaration
public event TripleStoreEventHandler GraphAdded
Event Type
Type Description
TripleStoreEventHandler
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GraphChanged

Event which is raised when a graph is changed

Declaration
public event TripleStoreEventHandler GraphChanged
Event Type
Type Description
TripleStoreEventHandler
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GraphCleared

Event which is raised when a graph is cleared

Declaration
public event TripleStoreEventHandler GraphCleared
Event Type
Type Description
TripleStoreEventHandler
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GraphMerged

Event which is raised when a graph is merged

Declaration
public event TripleStoreEventHandler GraphMerged
Event Type
Type Description
TripleStoreEventHandler
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GraphRemoved

Events which is raised when a graph is removed

Declaration
public event TripleStoreEventHandler GraphRemoved
Event Type
Type Description
TripleStoreEventHandler

Implements

System.IDisposable

Extension Methods