Class GraphCollection

Wrapper class for Graph Collections.
Inheritance
System.Object
BaseGraphCollection
GraphCollection
Implements
System.IDisposable
System.Collections.Generic.IEnumerable<IGraph>
System.Collections.IEnumerable
Inherited Members
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.ToString()
Namespace: VDS.RDF
Assembly: dotNetRDF.dll
Syntax
public class GraphCollection : BaseGraphCollection, IDisposable, IEnumerable<IGraph>, IEnumerable

Constructors

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GraphCollection()

Creates a new Graph Collection.
Declaration
public GraphCollection()

Fields

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_graphs

Dictionary of Graph Uri Enhanced Hash Codes to Graphs.
Declaration
protected MultiDictionary<Uri, IGraph> _graphs
Field Value
Type Description
VDS.Common.Collections.MultiDictionary<System.Uri, IGraph>
Remarks
See GetEnhancedHashCode(Uri).
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DefaultGraphID

Internal Constant used as the Hash Code for the default graph.
Declaration
protected const int DefaultGraphID = 0
Field Value
Type Description
System.Int32

Properties

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Count

Gets the number of Graphs in the Collection.
Declaration
public override int Count { get; }
Property Value
Type Description
System.Int32
Overrides
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GraphUris

Provides access to the Graph URIs of Graphs in the Collection.
Declaration
public override IEnumerable<Uri> GraphUris { get; }
Property Value
Type Description
System.Collections.Generic.IEnumerable<System.Uri>
Overrides
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Item[Uri]

Gets a Graph from the Collection.
Declaration
public override IGraph this[Uri graphUri] { get; }
Parameters
Type Name Description
System.Uri graphUri Graph Uri.
Property Value
Type Description
IGraph
Overrides

Methods

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Add(IGraph, Boolean)

Adds a Graph to the Collection.
Declaration
protected override bool Add(IGraph g, bool mergeIfExists)
Parameters
Type Name Description
IGraph g Graph to add.
System.Boolean mergeIfExists Sets whether the Graph should be merged with an existing Graph of the same Uri if present.
Returns
Type Description
System.Boolean
Overrides
Exceptions
Type Condition
RdfException Throws an RDF Exception if the Graph has no Base Uri or if the Graph already exists in the Collection and the mergeIfExists parameter was not set to true.
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Contains(Uri)

Checks whether the Graph with the given Uri exists in this Graph Collection.
Declaration
public override bool Contains(Uri graphUri)
Parameters
Type Name Description
System.Uri graphUri Graph Uri to test.
Returns
Type Description
System.Boolean
Overrides
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Dispose()

Disposes of the Graph Collection.
Declaration
public override void Dispose()
Overrides
Remarks
Invokes the Dispose() method of all Graphs contained in the Collection.
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GetEnumerator()

Gets the Enumerator for the Collection.
Declaration
public override IEnumerator<IGraph> GetEnumerator()
Returns
Type Description
System.Collections.Generic.IEnumerator<IGraph>
Overrides
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Remove(Uri)

Removes a Graph from the Collection.
Declaration
protected override bool Remove(Uri graphUri)
Parameters
Type Name Description
System.Uri graphUri Uri of the Graph to remove.
Returns
Type Description
System.Boolean
Overrides

Explicit Interface Implementations

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IEnumerable.GetEnumerator()

Gets the Enumerator for this Collection.
Declaration
IEnumerator IEnumerable.GetEnumerator()
Returns
Type Description
System.Collections.IEnumerator

Implements

System.IDisposable
System.Collections.Generic.IEnumerable<T>
System.Collections.IEnumerable

Extension Methods