Class WrapperDataset

An abstract dataset wrapper that can be used to wrap another dataset and just modify some functionality i.e. provides a decorator over an existing dataset.

Inheritance

object

WrapperDataset

BaseDemandDataset

FullTextIndexedDataset

Implements

IConfigurationSerializable

IThreadSafeDataset

ISparqlDataset

ITripleIndex

Inherited Members

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 abstract class WrapperDataset : IConfigurationSerializable, IThreadSafeDataset, ISparqlDataset, ITripleIndex

Constructors

WrapperDataset(ISparqlDataset)

Creates a new wrapped dataset.

Declaration

protected WrapperDataset(ISparqlDataset dataset)

Parameters

Type	Name	Description
ISparqlDataset	dataset	Dataset.

Fields

_dataset

Underlying Dataset.

Declaration

protected ISparqlDataset _dataset

Field Value

Type	Description
ISparqlDataset

Properties

ActiveGraphNames

Gets the enumeration of the names of the graphs that currently make up the active graph.

Declaration

public virtual IEnumerable<IRefNode> ActiveGraphNames { get; }

Property Value

Type	Description
IEnumerable<IRefNode>

ActiveGraphUris

Gets the Active Graph URIs.

Declaration

[Obsolete("Replaced by ActiveGraphNames")]
public virtual IEnumerable<Uri> ActiveGraphUris { get; }

Property Value

Type	Description
IEnumerable<Uri>

DefaultGraphNames

Gets the enumeration of the names of the graphs that currently make up the default graph.

Declaration

public virtual IEnumerable<IRefNode> DefaultGraphNames { get; }

Property Value

Type	Description
IEnumerable<IRefNode>

DefaultGraphUris

Gets the Default Graph URIs.

Declaration

[Obsolete("Replaced by DefaultGraphNames")]
public virtual IEnumerable<Uri> DefaultGraphUris { get; }

Property Value

Type	Description
IEnumerable<Uri>

GraphNames

Gets an enumeration of the names of all graphs in the dataset.

Declaration

public virtual IEnumerable<IRefNode> GraphNames { get; }

Property Value

Type	Description
IEnumerable<IRefNode>

GraphUris

Gets the URIs of Graphs in the dataset.

Declaration

[Obsolete("Replaced by GraphNames")]
public virtual IEnumerable<Uri> GraphUris { get; }

Property Value

Type	Description
IEnumerable<Uri>

Graphs

Gets the Graphs in the dataset.

Declaration

public virtual IEnumerable<IGraph> Graphs { get; }

Property Value

Type	Description
IEnumerable<IGraph>

HasTriples

Gets whether the dataset has any triples.

Declaration

public virtual bool HasTriples { get; }

Property Value

Type	Description
bool

this[Uri]

Gets a Graph from the dataset.

Declaration

[Obsolete("Replaced by this[IRefNode]")]
public virtual IGraph this[Uri graphUri] { get; }

Parameters

Type	Name	Description
Uri	graphUri	Graph URI.

Property Value

Type	Description
IGraph

this[IRefNode]

Gets the graph with the given name from the dataset.

Declaration

public virtual IGraph this[IRefNode graphName] { get; }

Parameters

Type	Name	Description
IRefNode	graphName	Graph name.

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() method to guarantee a Graph they can modify and will be persisted to the underlying storage.

Lock

Gets the Lock used to ensure MRSW concurrency on the dataset when available.

Declaration

public ReaderWriterLockSlim Lock { get; }

Property Value

Type	Description
ReaderWriterLockSlim

QuotedTriples

Gets all the quoted triples in teh dataset.

Declaration

public IEnumerable<Triple> QuotedTriples { get; }

Property Value

Type	Description
IEnumerable<Triple>

Remarks

Note: The Triples returned from the method should be limited to those in the current Active Graph if present, otherwise those in the current Default Graph if present and finally the entire Dataset.

Triples

Gets all triples from the dataset.

Declaration

public virtual IEnumerable<Triple> Triples { get; }

Property Value

Type	Description
IEnumerable<Triple>

UnderlyingDataset

Gets the underlying dataset.

Declaration

public ISparqlDataset UnderlyingDataset { get; }

Property Value

Type	Description
ISparqlDataset

UsesUnionDefaultGraph

Gets whether the default graph is the union of all graphs.

Declaration

public virtual bool UsesUnionDefaultGraph { get; }

Property Value

Type	Description
bool

Methods

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
bool

ContainsQuotedTriple(Triple)

Gets whether the dataset contains a specific quoted triple.

Declaration

public virtual bool ContainsQuotedTriple(Triple t)

Parameters

Type	Name	Description
Triple	t	Triple.

Returns

Type	Description
bool	True if the dataset contains t as a quoted triple, false otherwise.

ContainsTriple(Triple)

Gets whether the dataset contains a given triple.

Declaration

public virtual bool ContainsTriple(Triple t)

Parameters

Type	Name	Description
Triple	t	Triple.

Returns

Type	Description
bool

Discard()

Discards any changes to the dataset.

Declaration

public virtual void Discard()

Flush()

Flushes any changes to the dataset.

Declaration

public virtual void Flush()

GetModifiableGraph(Uri)

Gets a modifiable graph from the dataset.

Declaration

[Obsolete("Replaced by GetModifiableGraph(IRefNode)")]
public virtual IGraph GetModifiableGraph(Uri graphUri)

Parameters

Type	Name	Description
Uri	graphUri	Graph URI.

Returns

Type	Description
IGraph

GetModifiableGraph(IRefNode)

Gets the Graph with the given name from the Dataset.

Declaration

public virtual IGraph GetModifiableGraph(IRefNode graphName)

Parameters

Type	Name	Description
IRefNode	graphName	Graph name.

Returns

Type	Description
IGraph

Remarks

Graphs returned from this method must be modifiable and the Dataset must guarantee that when it is Flushed or Disposed of that any changes to the Graph are persisted.

Exceptions

Type	Condition
NotSupportedException	May be thrown if the Dataset is immutable i.e. Updates not supported.

GetQuoted(Uri)

Selects all quoted triples which have a Uri Node with the given Uri.

Declaration

public IEnumerable<Triple> GetQuoted(Uri uri)

Parameters

Type	Name	Description
Uri	uri	Uri.

Returns

Type	Description
IEnumerable<Triple>

GetQuoted(INode)

Selects all quoted triples which contain the given Node.

Declaration

public IEnumerable<Triple> GetQuoted(INode n)

Parameters

Type	Name	Description
INode	n	Node.

Returns

Type	Description
IEnumerable<Triple>

GetQuotedWithObject(Uri)

Selects all quoted triples where the Object is a Uri Node with the given Uri.

Declaration

public IEnumerable<Triple> GetQuotedWithObject(Uri u)

Parameters

Type	Name	Description
Uri	u	Uri.

Returns

Type	Description
IEnumerable<Triple>

GetQuotedWithObject(INode)

Selects all quoted triples where the Object is a given Node.

Declaration

public IEnumerable<Triple> GetQuotedWithObject(INode n)

Parameters

Type	Name	Description
INode	n	Node.

Returns

Type	Description
IEnumerable<Triple>

GetQuotedWithPredicate(Uri)

Selects all quoted triples where the Predicate is a Uri Node with the given Uri.

Declaration

public IEnumerable<Triple> GetQuotedWithPredicate(Uri u)

Parameters

Type	Name	Description
Uri	u	Uri.

Returns

Type	Description
IEnumerable<Triple>

GetQuotedWithPredicate(INode)

Selects all quoted triples where the Predicate is a given Node.

Declaration

public IEnumerable<Triple> GetQuotedWithPredicate(INode n)

Parameters

Type	Name	Description
INode	n	Node.

Returns

Type	Description
IEnumerable<Triple>

GetQuotedWithPredicateObject(INode, INode)

Selects all quoted triples with the given Predicate and Object.

Declaration

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

Parameters

Type	Name	Description
INode	pred	Predicate.
INode	obj	Object.

Returns

Type	Description
IEnumerable<Triple>

GetQuotedWithSubject(Uri)

Selects all quoted triples where the Subject is a Uri Node with the given Uri.

Declaration

public IEnumerable<Triple> GetQuotedWithSubject(Uri u)

Parameters

Type	Name	Description
Uri	u	Uri.

Returns

Type	Description
IEnumerable<Triple>

GetQuotedWithSubject(INode)

Selects all quoted triples where the Subject is a given Node.

Declaration

public IEnumerable<Triple> GetQuotedWithSubject(INode n)

Parameters

Type	Name	Description
INode	n	Node.

Returns

Type	Description
IEnumerable<Triple>

GetQuotedWithSubjectObject(INode, INode)

Selects all quoted triples with the given Subject and Object.

Declaration

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

Parameters

Type	Name	Description
INode	subj	Subject.
INode	obj	Object.

Returns

Type	Description
IEnumerable<Triple>

GetQuotedWithSubjectPredicate(INode, INode)

Selects all quoted triples with the given Subject and Predicate.

Declaration

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

Parameters

Type	Name	Description
INode	subj	Subject.
INode	pred	Predicate.

Returns

Type	Description
IEnumerable<Triple>

GetTriples(Uri)

Selects all Triples which have a Uri Node with the given Uri.

Declaration

public IEnumerable<Triple> GetTriples(Uri uri)

Parameters

Type	Name	Description
Uri	uri	Uri.

Returns

Type	Description
IEnumerable<Triple>

GetTriples(INode)

Selects all Triples which contain the given Node.

Declaration

public IEnumerable<Triple> GetTriples(INode n)

Parameters

Type	Name	Description
INode	n	Node.

Returns

Type	Description
IEnumerable<Triple>

GetTriplesWithObject(Uri)

Selects all Triples where the Object is a Uri Node with the given Uri.

Declaration

public IEnumerable<Triple> GetTriplesWithObject(Uri u)

Parameters

Type	Name	Description
Uri	u	Uri.

Returns

Type	Description
IEnumerable<Triple>

GetTriplesWithObject(INode)

Gets triples with a given object.

Declaration

public virtual IEnumerable<Triple> GetTriplesWithObject(INode obj)

Parameters

Type	Name	Description
INode	obj	Object.

Returns

Type	Description
IEnumerable<Triple>

GetTriplesWithPredicate(Uri)

Selects all Triples where the Predicate is a Uri Node with the given Uri.

Declaration

public IEnumerable<Triple> GetTriplesWithPredicate(Uri u)

Parameters

Type	Name	Description
Uri	u	Uri.

Returns

Type	Description
IEnumerable<Triple>

GetTriplesWithPredicate(INode)

Gets triples with a given predicate.

Declaration

public virtual IEnumerable<Triple> GetTriplesWithPredicate(INode pred)

Parameters

Type	Name	Description
INode	pred	Predicate.

Returns

Type	Description
IEnumerable<Triple>

GetTriplesWithPredicateObject(INode, INode)

Gets triples with a given predicate and object.

Declaration

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

Parameters

Type	Name	Description
INode	pred	Predicate.
INode	obj	Object.

Returns

Type	Description
IEnumerable<Triple>

GetTriplesWithSubject(Uri)

Selects all Triples where the Subject is a Uri Node with the given Uri.

Declaration

public IEnumerable<Triple> GetTriplesWithSubject(Uri u)

Parameters

Type	Name	Description
Uri	u	Uri.

Returns

Type	Description
IEnumerable<Triple>

GetTriplesWithSubject(INode)

Gets triples with a given subject.

Declaration

public virtual IEnumerable<Triple> GetTriplesWithSubject(INode subj)

Parameters

Type	Name	Description
INode	subj	Subject.

Returns

Type	Description
IEnumerable<Triple>

GetTriplesWithSubjectObject(INode, INode)

Gets triples with a given subject and object.

Declaration

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

Parameters

Type	Name	Description
INode	subj	Subject.
INode	obj	Object.

Returns

Type	Description
IEnumerable<Triple>

GetTriplesWithSubjectPredicate(INode, INode)

Gets triples with a given subject and predicate.

Declaration

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

Parameters

Type	Name	Description
INode	subj	Subject.
INode	pred	Predicate.

Returns

Type	Description
IEnumerable<Triple>

HasGraph(Uri)

Gets whether the dataset contains a given Graph.

Declaration

[Obsolete("Replaced by HasGraph(IRefNode)")]
public virtual bool HasGraph(Uri graphUri)

Parameters

Type	Name	Description
Uri	graphUri	Graph URI.

Returns

Type	Description
bool

HasGraph(IRefNode)

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

Declaration

public virtual bool HasGraph(IRefNode graphName)

Parameters

Type	Name	Description
IRefNode	graphName	Graph name.

Returns

Type	Description
bool

RemoveGraph(Uri)

Removes a Graph from the dataset.

Declaration

[Obsolete("Replaced by RemoveGraph(IRefNode)")]
public virtual bool RemoveGraph(Uri graphUri)

Parameters

Type	Name	Description
Uri	graphUri	Graph URI.

Returns

Type	Description
bool

RemoveGraph(IRefNode)

Removes a Graph from the Dataset.

Declaration

public virtual bool RemoveGraph(IRefNode graphName)

Parameters

Type	Name	Description
IRefNode	graphName	Graph name.

Returns

Type	Description
bool

Exceptions

Type	Condition
NotSupportedException	May be thrown if the Dataset is immutable i.e. Updates not supported.

ResetActiveGraph()

Resets the Active Graph.

Declaration

public virtual void ResetActiveGraph()

ResetDefaultGraph()

Resets the Default Graph.

Declaration

public virtual void ResetDefaultGraph()

SerializeConfiguration(ConfigurationSerializationContext)

Serializes the Configuration of the Dataset.

Declaration

public virtual void SerializeConfiguration(ConfigurationSerializationContext context)

Parameters

Type	Name	Description
ConfigurationSerializationContext	context	Serialization Context.

SetActiveGraph(IEnumerable<Uri>)

Sets the Active Graph for the dataset.

Declaration

[Obsolete("Replaced by SetActiveGraph(IList<IRefNode>)")]
public virtual void SetActiveGraph(IEnumerable<Uri> graphUris)

Parameters

Type	Name	Description
IEnumerable<Uri>	graphUris	Graph URIs.

SetActiveGraph(IList<IRefNode>)

Sets the active graph to be the union of the graphs with the given names.

Declaration

public virtual void SetActiveGraph(IList<IRefNode> graphNames)

Parameters

Type	Name	Description
IList<IRefNode>	graphNames

SetActiveGraph(Uri)

Sets the Active Graph for the dataset.

Declaration

[Obsolete("Replaced by SetActiveGraph(IRefNode)")]
public virtual void SetActiveGraph(Uri graphUri)

Parameters

Type	Name	Description
Uri	graphUri	Graph URI.

SetActiveGraph(IRefNode)

Sets the active graph to be the graph with the given name.

Declaration

public virtual void SetActiveGraph(IRefNode graphName)

Parameters

Type	Name	Description
IRefNode	graphName	Graph name.

SetDefaultGraph(IEnumerable<Uri>)

Sets the Default Graph for the dataset.

Declaration

[Obsolete("Replaced by SetDefaultGraph(IList<IRefNode>)")]
public virtual void SetDefaultGraph(IEnumerable<Uri> graphUris)

Parameters

Type	Name	Description
IEnumerable<Uri>	graphUris	Graph URIs.

SetDefaultGraph(IList<IRefNode>)

Sets the default graph to be the union of the graphs with the given names.

Declaration

public virtual void SetDefaultGraph(IList<IRefNode> graphNames)

Parameters

Type	Name	Description
IList<IRefNode>	graphNames	Graph names.

SetDefaultGraph(Uri)

Sets the Default Graph for the dataset.

Declaration

[Obsolete("Replaced by SetDefaultGraph(IRefNode)")]
public virtual void SetDefaultGraph(Uri graphUri)

Parameters

Type	Name	Description
Uri	graphUri	Graph URI.

SetDefaultGraph(IRefNode)

Sets the default graph to be the graph with the given name.

Declaration

public virtual void SetDefaultGraph(IRefNode graphName)

Parameters

Type	Name	Description
IRefNode	graphName

Implements

IConfigurationSerializable

IThreadSafeDataset

ISparqlDataset

ITripleIndex

Extension Methods

Extensions.ToSafeString(object)

Extensions.AsEnumerable<T>(T)