Class BaseGraphCollection

Abstract Base Class for Graph Collections.

Inheritance

System.Object

BaseGraphCollection

GraphCollection

DatasetGraphCollection

WrapperGraphCollection

Implements

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

System.Collections.IEnumerable

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 abstract class BaseGraphCollection : IEnumerable<IGraph>, IEnumerable, IDisposable

Remarks

Designed to allow the underlying storage of a Graph Collection to be changed at a later date without affecting classes that use it.

Properties

Count

Gets the number of Graphs in the Collection.

Declaration

public abstract int Count { get; }

Property Value

Type	Description
int

Remarks

Designed to allow the underlying storage of a Graph Collection to be changed at a later date without affecting classes that use it.

GraphNames

Provides an enumeration of the names of all of teh graphs in the collection.

Declaration

public abstract IEnumerable<IRefNode> GraphNames { get; }

Property Value

Type	Description
System.Collections.Generic.IEnumerable<T><IRefNode>

Remarks

Designed to allow the underlying storage of a Graph Collection to be changed at a later date without affecting classes that use it.

GraphUris

Provides access to the Graph URIs of Graphs in the Collection.

Declaration

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

Property Value

Type	Description
System.Collections.Generic.IEnumerable<T><System.Uri>

Remarks

Designed to allow the underlying storage of a Graph Collection to be changed at a later date without affecting classes that use it.

this[Uri]

Gets a Graph from the Collection.

Declaration

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

Parameters

Type	Name	Description
System.Uri	graphUri	Graph Uri.

Property Value

Type	Description
IGraph

Remarks

The null URI is used to reference the Default Graph.

this[IRefNode]

Gets a graph from the collection.

Declaration

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

Parameters

Type	Name	Description
IRefNode	graphName	The name of the graph to retrieve.

Property Value

Type	Description
IGraph

Remarks

The null value is used to reference the default graph.

Methods

Add(IGraph, bool)

Adds a Graph to the Collection.

Declaration

public abstract 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

Remarks

Designed to allow the underlying storage of a Graph Collection to be changed at a later date without affecting classes that use it.

Contains(Uri)

Checks whether the Graph with the given Uri exists in this Graph Collection.

Declaration

[Obsolete("Replaced by Contains(IRefNode)")]
public abstract bool Contains(Uri graphUri)

Parameters

Type	Name	Description
System.Uri	graphUri	Graph Uri to test.

Returns

Type	Description
System.Boolean

Remarks

The null URI is used to reference the Default Graph.

Contains(IRefNode)

Checks whether the graph with the given name exists in this graph collection.

Declaration

public abstract bool Contains(IRefNode graphName)

Parameters

Type	Name	Description
IRefNode	graphName	Graph name to test for.

Returns

Type	Description
System.Boolean	True if a graph with the specified name is in the collection, false otherwise.

Remarks

The null value is used to reference the default (unnamed) graph.

Dispose()

Disposes of the Graph Collection.

Declaration

public abstract void Dispose()

Remarks

Invokes the System.IDisposable.Dispose() method of all Graphs contained in the Collection.

GetEnumerator()

Gets the Enumerator for the Collection.

Declaration

public abstract IEnumerator<IGraph> GetEnumerator()

Returns

Type	Description
System.Collections.Generic.IEnumerator<T><IGraph>

Remarks

Designed to allow the underlying storage of a Graph Collection to be changed at a later date without affecting classes that use it.

RaiseGraphAdded(IGraph)

Helper method which raises the Graph Added event manually.

Declaration

protected virtual void RaiseGraphAdded(IGraph g)

Parameters

Type	Name	Description
IGraph	g	Graph.

Remarks

Designed to allow the underlying storage of a Graph Collection to be changed at a later date without affecting classes that use it.

RaiseGraphRemoved(IGraph)

Helper method which raises the Graph Removed event manually.

Declaration

protected virtual void RaiseGraphRemoved(IGraph g)

Parameters

Type	Name	Description
IGraph	g	Graph.

Remarks

Designed to allow the underlying storage of a Graph Collection to be changed at a later date without affecting classes that use it.

Remove(Uri)

Removes a Graph from the Collection.

Declaration

[Obsolete("Replaced by Remove(IRefNode)")]
public abstract bool Remove(Uri graphUri)

Parameters

Type	Name	Description
System.Uri	graphUri	Uri of the Graph to remove.

Returns

Type	Description
System.Boolean

Remarks

The null URI is used to reference the Default Graph.

Remove(IRefNode)

Removes a graph from the collection.

Declaration

public abstract bool Remove(IRefNode graphName)

Parameters

Type	Name	Description
IRefNode	graphName	Name of the Graph to remove.

Returns

Type	Description
System.Boolean

Remarks

The null value is used to reference the Default Graph.

Events

GraphAdded

Event which is raised when a Graph is added to the Collection

Declaration

public event GraphEventHandler GraphAdded

Event Type

Type	Description
GraphEventHandler

Remarks

Designed to allow the underlying storage of a Graph Collection to be changed at a later date without affecting classes that use it.

GraphRemoved

Event which is raised when a Graph is removed from the Collection

Declaration

public event GraphEventHandler GraphRemoved

Event Type

Type	Description
GraphEventHandler

Remarks

Designed to allow the underlying storage of a Graph Collection to be changed at a later date without affecting classes that use it.

Implements

System.Collections.Generic.IEnumerable<T>

System.Collections.IEnumerable

System.IDisposable

Extension Methods

Extensions.ChunkBy<T>(IEnumerable<T>, int)

Extensions.IsDisjoint<T>(IEnumerable<T>, IEnumerable<T>)

Extensions.ToSafeString(object)

Extensions.AsEnumerable<T>(T)