Class Graph

Class for representing RDF Graphs.

Inheritance

object

BaseGraph

Graph

TpfLiveGraph

NonIndexedGraph

OntologyGraph

BaseSparqlView

QueryableGraph

ThreadSafeGraph

UnionGraph

Implements

IGraph

INodeFactory

IDisposable

ITripleIndex

IEquatable<IGraph>

IEquatable<Graph>

Inherited Members

BaseGraph._triples

BaseGraph.NodeFactory

BaseGraph.UriFactory

BaseGraph._name

BaseGraph._bnodemapper

BaseGraph.Triples

BaseGraph.QuotedTriples

BaseGraph.Nodes

BaseGraph.AllNodes

BaseGraph.QuotedNodes

BaseGraph.AllQuotedNodes

BaseGraph.NamespaceMap

BaseGraph.BaseUri

BaseGraph.Name

BaseGraph.IsEmpty

BaseGraph.NormalizeLiteralValues

BaseGraph.LanguageTagValidation

BaseGraph.Clear()

BaseGraph.CreateBlankNode()

BaseGraph.CreateBlankNode(string)

BaseGraph.CreateGraphLiteralNode()

BaseGraph.CreateGraphLiteralNode(IGraph)

BaseGraph.CreateLiteralNode(string, Uri)

BaseGraph.CreateLiteralNode(string)

BaseGraph.CreateLiteralNode(string, string)

BaseGraph.CreateUriNode(Uri)

BaseGraph.CreateUriNode(string)

BaseGraph.CreateUriNode()

BaseGraph.CreateVariableNode(string)

BaseGraph.CreateTripleNode(Triple)

BaseGraph.ContainsTriple(Triple)

BaseGraph.ContainsQuotedTriple(Triple)

BaseGraph.GetQuoted(Uri)

BaseGraph.GetQuotedWithObject(Uri)

BaseGraph.GetQuotedWithPredicate(Uri)

BaseGraph.GetQuotedWithSubject(Uri)

BaseGraph.Merge(IGraph)

BaseGraph.Merge(IGraph, bool)

BaseGraph.Unstar()

BaseGraph.Equals(IGraph)

BaseGraph.Equals(IGraph, out Dictionary<INode, INode>)

BaseGraph.IsSubGraphOf(IGraph)

BaseGraph.IsSubGraphOf(IGraph, out Dictionary<INode, INode>)

BaseGraph.HasSubGraph(IGraph)

BaseGraph.HasSubGraph(IGraph, out Dictionary<INode, INode>)

BaseGraph.Difference(IGraph)

BaseGraph.ResolveQName(string)

BaseGraph.GetNextBlankNodeID()

BaseGraph.TripleAsserted

BaseGraph.TripleRetracted

BaseGraph.Changed

BaseGraph.ClearRequested

BaseGraph.Cleared

BaseGraph.MergeRequested

BaseGraph.Merged

BaseGraph.OnTripleAsserted(object, TripleEventArgs)

BaseGraph.RaiseTripleAsserted(TripleEventArgs)

BaseGraph.RaiseTripleAsserted(Triple)

BaseGraph.OnTripleRetracted(object, TripleEventArgs)

BaseGraph.RaiseTripleRetracted(TripleEventArgs)

BaseGraph.RaiseTripleRetracted(Triple)

BaseGraph.RaiseGraphChanged(TripleEventArgs)

BaseGraph.RaiseGraphChanged()

BaseGraph.RaiseClearRequested()

BaseGraph.RaiseCleared()

BaseGraph.RaiseMergeRequested()

BaseGraph.RaiseMerged()

BaseGraph.AttachEventHandlers(BaseTripleCollection)

BaseGraph.DetachEventHandlers(BaseTripleCollection)

BaseGraph.Dispose()

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 Graph : BaseGraph, IGraph, INodeFactory, IDisposable, ITripleIndex, IEquatable<IGraph>, IEquatable<Graph>

Constructors

Graph()

Creates a new instance of a graph.

Declaration

public Graph()

Graph(bool)

Creates a new instance of a Graph with an optionally empty Namespace Map.

Declaration

public Graph(bool emptyNamespaceMap)

Parameters

Type	Name	Description
bool	emptyNamespaceMap	Whether the Namespace Map should be empty.

Graph(Uri)

Creates a new instance of a graph with the specified URI as the graph name.

Declaration

public Graph(Uri name)

Parameters

Type	Name	Description
Uri	name	The graph name as a URI.

Graph(Uri, bool)

Creates a new instance of a named graph with an optionally empty namespace map.

Declaration

public Graph(Uri name, bool emptyNamespaceMap)

Parameters

Type	Name	Description
Uri	name	The graph name.
bool	emptyNamespaceMap	Whether the namespace map should be empty.

Graph(Uri, BaseTripleCollection)

Creates a new instance of a named using the given triple collection.

Declaration

public Graph(Uri name, BaseTripleCollection tripleCollection)

Parameters

Type	Name	Description
Uri	name	The graph name.
BaseTripleCollection	tripleCollection	The triple collection that will be the content of the new graph.

Graph(Uri, BaseTripleCollection, bool)

Creates a new named graph using the given triple collection and an optionally empty namespace map.

Declaration

public Graph(Uri name, BaseTripleCollection tripleCollection, bool emptyNamespaceMap)

Parameters

Type	Name	Description
Uri	name	The graph name.
BaseTripleCollection	tripleCollection	The triple collection that will be the content of the new graph.
bool	emptyNamespaceMap	Whether the namespace map should be empty.

Graph(BaseTripleCollection)

Creates a new instance of a Graph using the given Triple Collection.

Declaration

public Graph(BaseTripleCollection tripleCollection)

Parameters

Type	Name	Description
BaseTripleCollection	tripleCollection	Triple Collection.

Graph(BaseTripleCollection, bool)

Creates a new instance of a Graph using the given Triple Collection and an optionally empty Namespace Map.

Declaration

public Graph(BaseTripleCollection tripleCollection, bool emptyNamespaceMap)

Parameters

Type	Name	Description
BaseTripleCollection	tripleCollection	Triple Collection.
bool	emptyNamespaceMap	Whether the Namespace Map should be empty.

Graph(IRefNode)

Creates a new instance of a named graph.

Declaration

public Graph(IRefNode name)

Parameters

Type	Name	Description
IRefNode	name	The graph name.

Graph(IRefNode, bool)

Creates a new instance of a named graph with an optionally empty namespace map.

Declaration

public Graph(IRefNode name, bool emptyNamespaceMap)

Parameters

Type	Name	Description
IRefNode	name	The graph name.
bool	emptyNamespaceMap	Whether the namespace map should be empty.

Graph(IRefNode, BaseTripleCollection)

Creates a new instance of a named using the given triple collection.

Declaration

public Graph(IRefNode name, BaseTripleCollection tripleCollection)

Parameters

Type	Name	Description
IRefNode	name	The graph name.
BaseTripleCollection	tripleCollection	The triple collection that will be the content of the new graph.

Graph(IRefNode, BaseTripleCollection, bool)

Creates a new named graph using the given triple collection and an optionally empty namespace map.

Declaration

public Graph(IRefNode name, BaseTripleCollection tripleCollection, bool emptyNamespaceMap)

Parameters

Type	Name	Description
IRefNode	name	The graph name.
BaseTripleCollection	tripleCollection	The triple collection that will be the content of the new graph.
bool	emptyNamespaceMap	Whether the namespace map should be empty.

Graph(IRefNode, INodeFactory, IUriFactory, BaseTripleCollection, bool)

Creates a new instance of a Graph.

Declaration

public Graph(IRefNode name, INodeFactory nodeFactory = null, IUriFactory uriFactory = null, BaseTripleCollection tripleCollection = null, bool emptyNamespaceMap = false)

Parameters

Type	Name	Description
IRefNode	name	The name to assign to the graph. If null, the graph is unnamed.
INodeFactory	nodeFactory	The factory to use when constructing nodes in this graph. If null, defaults to a new NodeFactory instance using the same UriFactory instance as this graph.
IUriFactory	uriFactory	The factory to use when constructing URIs in this graph. If null, defaults to the root UriFactory.
BaseTripleCollection	tripleCollection	The initial content of the graph. If null, the graph will initially be empty.
bool	emptyNamespaceMap	Whether to initialise the graph with an empty namespace map. If false, the namespace map will contain default declarations for the RDF, RDFS and XSD namespaces.

Methods

Assert(IEnumerable<Triple>)

Asserts a List of Triples in the graph.

Declaration

public override bool Assert(IEnumerable<Triple> ts)

Parameters

Type	Name	Description
IEnumerable<Triple>	ts	List of Triples in the form of an IEnumerable.

Returns

Type	Description
bool	True if at least one Triple in ts was a new assertion in the graph, false otherwise.

Overrides

BaseGraph.Assert(IEnumerable<Triple>)

Assert(Triple)

Asserts a Triple in the Graph.

Declaration

public override bool Assert(Triple t)

Parameters

Type	Name	Description
Triple	t	The Triple to add to the Graph.

Returns

Type	Description
bool	True if the triple was added to the graph, false if it was not (because it already exists in the graph).

Overrides

BaseGraph.Assert(Triple)

Equals(Graph)

Implements equality testing between Graph instances.

Declaration

public bool Equals(Graph other)

Parameters

Type	Name	Description
Graph	other

Returns

Type	Description
bool

GetBlankNode(string)

Returns the Blank Node with the given Identifier.

Declaration

public override IBlankNode GetBlankNode(string nodeId)

Parameters

Type	Name	Description
string	nodeId	The Identifier of the Blank Node to select.

Returns

Type	Description
IBlankNode	Either the Blank Node or null if no Node with the given Identifier exists.

Overrides

BaseGraph.GetBlankNode(string)

GetLiteralNode(string)

Returns the LiteralNode with the given Value if it exists.

Declaration

public override ILiteralNode GetLiteralNode(string literal)

Parameters

Type	Name	Description
string	literal	The literal value of the Node to select.

Returns

Type	Description
ILiteralNode	Either the LiteralNode Or null if no Node with the given Value exists.

Overrides

BaseGraph.GetLiteralNode(string)

Remarks

The LiteralNode in the Graph must have no Language or DataType set.

GetLiteralNode(string, string)

Returns the LiteralNode with the given Value in the given Language if it exists.

Declaration

public override ILiteralNode GetLiteralNode(string literal, string langSpec)

Parameters

Type	Name	Description
string	literal	The literal value of the Node to select.
string	langSpec	The Language Specifier for the Node to select.

Returns

Type	Description
ILiteralNode	Either the LiteralNode Or null if no Node with the given Value and Language Specifier exists.

Overrides

BaseGraph.GetLiteralNode(string, string)

GetLiteralNode(string, Uri)

Returns the LiteralNode with the given Value and given Data Type if it exists.

Declaration

public override ILiteralNode GetLiteralNode(string literal, Uri datatype)

Parameters

Type	Name	Description
string	literal	The literal value of the Node to select.
Uri	datatype	The Uri for the Data Type of the Literal to select.

Returns

Type	Description
ILiteralNode	Either the LiteralNode Or null if no Node with the given Value and Data Type exists.

Overrides

BaseGraph.GetLiteralNode(string, Uri)

GetQuoted(INode)

Selects all quoted triples which contain the given Node.

Declaration

public override IEnumerable<Triple> GetQuoted(INode n)

Parameters

Type	Name	Description
INode	n	Node.

Returns

Type	Description
IEnumerable<Triple>

Overrides

BaseGraph.GetQuoted(INode)

GetQuotedWithObject(INode)

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

Declaration

public override IEnumerable<Triple> GetQuotedWithObject(INode n)

Parameters

Type	Name	Description
INode	n	Node.

Returns

Type	Description
IEnumerable<Triple>

Overrides

BaseGraph.GetQuotedWithObject(INode)

GetQuotedWithPredicate(INode)

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

Declaration

public override IEnumerable<Triple> GetQuotedWithPredicate(INode n)

Parameters

Type	Name	Description
INode	n	Node.

Returns

Type	Description
IEnumerable<Triple>

Overrides

BaseGraph.GetQuotedWithPredicate(INode)

GetQuotedWithPredicateObject(INode, INode)

Selects all quoted triples with the given Predicate and Object.

Declaration

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

Parameters

Type	Name	Description
INode	pred	Predicate.
INode	obj	Object.

Returns

Type	Description
IEnumerable<Triple>

Overrides

BaseGraph.GetQuotedWithPredicateObject(INode, INode)

GetQuotedWithSubject(INode)

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

Declaration

public override IEnumerable<Triple> GetQuotedWithSubject(INode n)

Parameters

Type	Name	Description
INode	n	Node.

Returns

Type	Description
IEnumerable<Triple>

Overrides

BaseGraph.GetQuotedWithSubject(INode)

GetQuotedWithSubjectObject(INode, INode)

Selects all quoted triples with the given Subject and Object.

Declaration

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

Parameters

Type	Name	Description
INode	subj	Subject.
INode	obj	Object.

Returns

Type	Description
IEnumerable<Triple>

Overrides

BaseGraph.GetQuotedWithSubjectObject(INode, INode)

GetQuotedWithSubjectPredicate(INode, INode)

Selects all quoted triples with the given Subject and Predicate.

Declaration

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

Parameters

Type	Name	Description
INode	subj	Subject.
INode	pred	Predicate.

Returns

Type	Description
IEnumerable<Triple>

Overrides

BaseGraph.GetQuotedWithSubjectPredicate(INode, INode)

GetTripleNode(Triple)

Selects the Triple Node with the given Triple value if it exists in the graph.

Declaration

public override ITripleNode GetTripleNode(Triple triple)

Parameters

Type	Name	Description
Triple	triple	Triple.

Returns

Type	Description
ITripleNode	The triple node if it exists in the graph or else null.

Overrides

BaseGraph.GetTripleNode(Triple)

GetTriples(Uri)

Gets all the Triples involving the given Uri.

Declaration

public override IEnumerable<Triple> GetTriples(Uri uri)

Parameters

Type	Name	Description
Uri	uri	The Uri to find Triples involving.

Returns

Type	Description
IEnumerable<Triple>	Zero/More Triples.

Overrides

BaseGraph.GetTriples(Uri)

GetTriples(INode)

Gets all the Triples involving the given Node.

Declaration

public override IEnumerable<Triple> GetTriples(INode n)

Parameters

Type	Name	Description
INode	n	The Node to find Triples involving.

Returns

Type	Description
IEnumerable<Triple>	Zero/More Triples.

Overrides

BaseGraph.GetTriples(INode)

GetTriplesWithObject(Uri)

Gets all the Triples with the given Uri as the Object.

Declaration

public override IEnumerable<Triple> GetTriplesWithObject(Uri u)

Parameters

Type	Name	Description
Uri	u	The Uri to find Triples with it as the Object.

Returns

Type	Description
IEnumerable<Triple>	Zero/More Triples.

Overrides

BaseGraph.GetTriplesWithObject(Uri)

GetTriplesWithObject(INode)

Gets all the Triples with the given Node as the Object.

Declaration

public override IEnumerable<Triple> GetTriplesWithObject(INode n)

Parameters

Type	Name	Description
INode	n	The Node to find Triples with it as the Object.

Returns

Type	Description
IEnumerable<Triple>

Overrides

BaseGraph.GetTriplesWithObject(INode)

GetTriplesWithPredicate(Uri)

Gets all the Triples with the given Uri as the Predicate.

Declaration

public override IEnumerable<Triple> GetTriplesWithPredicate(Uri u)

Parameters

Type	Name	Description
Uri	u	The Uri to find Triples with it as the Predicate.

Returns

Type	Description
IEnumerable<Triple>	Zero/More Triples.

Overrides

BaseGraph.GetTriplesWithPredicate(Uri)

GetTriplesWithPredicate(INode)

Gets all the Triples with the given Node as the Predicate.

Declaration

public override IEnumerable<Triple> GetTriplesWithPredicate(INode n)

Parameters

Type	Name	Description
INode	n	The Node to find Triples with it as the Predicate.

Returns

Type	Description
IEnumerable<Triple>

Overrides

BaseGraph.GetTriplesWithPredicate(INode)

GetTriplesWithPredicateObject(INode, INode)

Selects all Triples with the given Predicate and Object.

Declaration

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

Parameters

Type	Name	Description
INode	pred	Predicate.
INode	obj	Object.

Returns

Type	Description
IEnumerable<Triple>

Overrides

BaseGraph.GetTriplesWithPredicateObject(INode, INode)

GetTriplesWithSubject(Uri)

Gets all the Triples with the given Uri as the Subject.

Declaration

public override IEnumerable<Triple> GetTriplesWithSubject(Uri u)

Parameters

Type	Name	Description
Uri	u	The Uri to find Triples with it as the Subject.

Returns

Type	Description
IEnumerable<Triple>	Zero/More Triples.

Overrides

BaseGraph.GetTriplesWithSubject(Uri)

GetTriplesWithSubject(INode)

Gets all the Triples with the given Node as the Subject.

Declaration

public override IEnumerable<Triple> GetTriplesWithSubject(INode n)

Parameters

Type	Name	Description
INode	n	The Node to find Triples with it as the Subject.

Returns

Type	Description
IEnumerable<Triple>	Zero/More Triples.

Overrides

BaseGraph.GetTriplesWithSubject(INode)

GetTriplesWithSubjectObject(INode, INode)

Selects all Triples with the given Subject and Object.

Declaration

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

Parameters

Type	Name	Description
INode	subj	Subject.
INode	obj	Object.

Returns

Type	Description
IEnumerable<Triple>

Overrides

BaseGraph.GetTriplesWithSubjectObject(INode, INode)

GetTriplesWithSubjectPredicate(INode, INode)

Selects all Triples with the given Subject and Predicate.

Declaration

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

Parameters

Type	Name	Description
INode	subj	Subject.
INode	pred	Predicate.

Returns

Type	Description
IEnumerable<Triple>

Overrides

BaseGraph.GetTriplesWithSubjectPredicate(INode, INode)

GetUriNode(string)

Returns the UriNode with the given QName if it exists.

Declaration

public override IUriNode GetUriNode(string qName)

Parameters

Type	Name	Description
string	qName	The QName of the Node to select.

Returns

Type	Description
IUriNode

Overrides

BaseGraph.GetUriNode(string)

GetUriNode(Uri)

Returns the UriNode with the given Uri if it exists.

Declaration

public override IUriNode GetUriNode(Uri uri)

Parameters

Type	Name	Description
Uri	uri	The Uri of the Node to select.

Returns

Type	Description
IUriNode	Either the UriNode Or null if no Node with the given Uri exists.

Overrides

BaseGraph.GetUriNode(Uri)

Retract(IEnumerable<Triple>)

Retracts a enumeration of Triples from the graph.

Declaration

public override bool Retract(IEnumerable<Triple> ts)

Parameters

Type	Name	Description
IEnumerable<Triple>	ts	Enumeration of Triples to retract.

Returns

Type	Description
bool

Overrides

BaseGraph.Retract(IEnumerable<Triple>)

Retract(Triple)

Retracts a Triple from the Graph.

Declaration

public override bool Retract(Triple t)

Parameters

Type	Name	Description
Triple	t	Triple to Retract.

Returns

Type	Description
bool

Overrides

BaseGraph.Retract(Triple)

Remarks

Current implementation may have some defunct Nodes left in the Graph as only the Triple is retracted.

Implements

IGraph

INodeFactory

IDisposable

ITripleIndex

IEquatable<T>

IEquatable<T>

Extension Methods

Extensions.ToSafeString(object)

Extensions.AsEnumerable<T>(T)

GraphExtensions.ToDataTable(IGraph)

DynamicExtensions.AsDynamic(IGraph, Uri, Uri)

Extensions.AddToList(IGraph, INode, IEnumerable<INode>)

Extensions.AddToList<T>(IGraph, INode, IEnumerable<T>, Func<T, INode>)

Extensions.Assert(IGraph, INode, INode, INode)

Extensions.AssertList(IGraph, IEnumerable<INode>)

Extensions.AssertList(IGraph, INode, IEnumerable<INode>)

Extensions.AssertList<T>(IGraph, IEnumerable<T>, Func<T, INode>)

Extensions.AssertList<T>(IGraph, INode, IEnumerable<T>, Func<T, INode>)

Extensions.GetListAsTriples(IGraph, INode)

Extensions.GetListItems(IGraph, INode)

Extensions.GetListNodes(IGraph, INode)

Extensions.RemoveFromList(IGraph, INode, IEnumerable<INode>)

Extensions.RemoveFromList<T>(IGraph, INode, IEnumerable<T>, Func<T, INode>)

Extensions.Retract(IGraph, INode, INode, INode)

Extensions.RetractList(IGraph, INode)

GraphExtensions.GetETag(IGraph)

GraphExtensions.LoadFromEmbeddedResource(IGraph, string)

GraphExtensions.LoadFromEmbeddedResource(IGraph, string, IRdfReader)

GraphExtensions.LoadFromFile(IGraph, string)

GraphExtensions.LoadFromFile(IGraph, string, IRdfReader)

GraphExtensions.LoadFromString(IGraph, string)

GraphExtensions.LoadFromString(IGraph, string, IRdfReader)

GraphExtensions.LoadFromUri(IGraph, Uri, IRdfReader, Loader)

GraphExtensions.LoadFromUri(IGraph, Uri, Loader)

GraphExtensions.SaveToFile(IGraph, string)

GraphExtensions.SaveToFile(IGraph, string, IRdfWriter)

GraphExtensions.SaveToFile(IGraph, string, IStoreWriter)

GraphExtensions.SaveToStream(IGraph, TextWriter, IRdfWriter)

GraphExtensions.SaveToStream(IGraph, TextWriter, IStoreWriter)

GraphExtensions.SaveToStream(IGraph, string, TextWriter)

InMemoryExtensions.ExecuteQuery(IGraph, string)

InMemoryExtensions.ExecuteQuery(IGraph, IRdfHandler, ISparqlResultsHandler, string)

InMemoryExtensions.ExecuteQuery(IGraph, IRdfHandler, ISparqlResultsHandler, SparqlParameterizedString)

InMemoryExtensions.ExecuteQuery(IGraph, IRdfHandler, ISparqlResultsHandler, SparqlQuery)

InMemoryExtensions.ExecuteQuery(IGraph, SparqlParameterizedString)

InMemoryExtensions.ExecuteQuery(IGraph, SparqlQuery)