Class BaseVirtualVariableNode<TNodeID, TGraphID>

Abstract Base implementation of a Virtual Variable Node.

Inheritance
object
BaseVirtualNode<TNodeID, TGraphID>
BaseVirtualVariableNode<TNodeID, TGraphID>
SimpleVirtualVariableNode
Implements
IVirtualNode<TNodeID, TGraphID>
IEquatable<IVirtualNode<TNodeID, TGraphID>>
IComparable<IVirtualNode<TNodeID, TGraphID>>
IEquatable<BaseVirtualNode<TNodeID, TGraphID>>
IComparable<BaseVirtualNode<TNodeID, TGraphID>>
Inherited Members
Namespace: VDS.RDF.Storage.Virtualisation
Assembly: dotNetRdf.dll
Syntax
public abstract class BaseVirtualVariableNode<TNodeID, TGraphID> : BaseVirtualNode<TNodeID, TGraphID>, IVirtualNode<TNodeID, TGraphID>, IEquatable<IVirtualNode<TNodeID, TGraphID>>, IComparable<IVirtualNode<TNodeID, TGraphID>>, IVirtualIdComparable, IEquatable<BaseVirtualNode<TNodeID, TGraphID>>, IComparable<BaseVirtualNode<TNodeID, TGraphID>>, ICanCopy, IVariableNode, IEquatable<BaseVirtualVariableNode<TNodeID, TGraphID>>, IComparable<BaseVirtualVariableNode<TNodeID, TGraphID>>, IValuedNode, INode, IComparable<INode>, IComparable<IBlankNode>, IComparable<IGraphLiteralNode>, IComparable<ILiteralNode>, IComparable<IUriNode>, IComparable<IVariableNode>, IComparable<IRefNode>, IComparable<ITripleNode>, IEquatable<INode>, IEquatable<IBlankNode>, IEquatable<IGraphLiteralNode>, IEquatable<ILiteralNode>, IEquatable<IUriNode>, IEquatable<IVariableNode>, IEquatable<IRefNode>, IEquatable<ITripleNode>
Type Parameters
Name Description
TNodeID

Node ID Type.
TGraphID

Graph ID Type.

Constructors

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BaseVirtualVariableNode(IGraph, TNodeID, IVirtualRdfProvider<TNodeID, TGraphID>)

Creates a new Virtual Variable Node.

Declaration
protected BaseVirtualVariableNode(IGraph g, TNodeID id, IVirtualRdfProvider<TNodeID, TGraphID> provider)
Parameters
Type Name Description
IGraph g

Graph the Node belongs to.
TNodeID id

Virtual ID.
IVirtualRdfProvider<TNodeID, TGraphID> provider

Virtual RDF Provider.
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BaseVirtualVariableNode(IGraph, TNodeID, IVirtualRdfProvider<TNodeID, TGraphID>, IVariableNode)

Creates a new Virtual Variable Node.

Declaration
protected BaseVirtualVariableNode(IGraph g, TNodeID id, IVirtualRdfProvider<TNodeID, TGraphID> provider, IVariableNode value)
Parameters
Type Name Description
IGraph g

Graph the Node belongs to.
TNodeID id

Virtual ID.
IVirtualRdfProvider<TNodeID, TGraphID> provider

Virtual RDF Provider.
IVariableNode value

Materialised Value.

Properties

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EffectiveType

Gets the URI of the datatype this valued node represents as a String.

Declaration
public string EffectiveType { get; }
Property Value
Type Description
string
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NumericType

Gets the numeric type of the node.

Declaration
public SparqlNumericType NumericType { get; }
Property Value
Type Description
SparqlNumericType
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VariableName

Gets the Variable Name.

Declaration
public string VariableName { get; }
Property Value
Type Description
string

Methods

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AsBoolean()

Throws an error as variables nodes cannot be cast to types.

Declaration
public bool AsBoolean()
Returns
Type Description
bool
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AsDateTime()

Throws an error as variables nodes cannot be cast to types.

Declaration
public DateTime AsDateTime()
Returns
Type Description
DateTime
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AsDateTimeOffset()

Throws an error as variables nodes cannot be cast to types.

Declaration
public DateTimeOffset AsDateTimeOffset()
Returns
Type Description
DateTimeOffset
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AsDecimal()

Throws an error as variables nodes cannot be cast to types.

Declaration
public decimal AsDecimal()
Returns
Type Description
decimal
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AsDouble()

Throws an error as variables nodes cannot be cast to types.

Declaration
public double AsDouble()
Returns
Type Description
double
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AsFloat()

Throws an error as variables nodes cannot be cast to types.

Declaration
public float AsFloat()
Returns
Type Description
float
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AsInteger()

Throws an error as variables nodes cannot be cast to types.

Declaration
public long AsInteger()
Returns
Type Description
long
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AsString()

Throws an error as variables nodes cannot be cast to types.

Declaration
public string AsString()
Returns
Type Description
string
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AsTimeSpan()

Throws an error as variables cannot be cast to a time span.

Declaration
public TimeSpan AsTimeSpan()
Returns
Type Description
TimeSpan
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CompareTo(IVariableNode)

Compares this Node to another Variable Node.

Declaration
public override int CompareTo(IVariableNode other)
Parameters
Type Name Description
IVariableNode other

Other Variable Node.
Returns
Type Description
int
Overrides
Remarks

Unless Virtual Equality (equality based on the Virtual RDF Provider and Virtual ID) can be determined or the Nodes are of different types then the Nodes value will have to be materialised in order to perform comparison.

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CompareTo(BaseVirtualVariableNode<TNodeID, TGraphID>)

Compares this Node to another Variable Node.

Declaration
public int CompareTo(BaseVirtualVariableNode<TNodeID, TGraphID> other)
Parameters
Type Name Description
BaseVirtualVariableNode<TNodeID, TGraphID> other

Other Variable Node.
Returns
Type Description
int
Remarks

Unless Virtual Equality (equality based on the Virtual RDF Provider and Virtual ID) can be determined or the Nodes are of different types then the Nodes value will have to be materialised in order to perform comparison.

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Equals(IVariableNode)

Checks this Node for equality against another Variable Node.

Declaration
public override bool Equals(IVariableNode other)
Parameters
Type Name Description
IVariableNode other

Other Variable Node.
Returns
Type Description
bool
Overrides
Remarks

Unless Virtual Equality (equality based on the Virtual RDF Provider and Virtual ID) can be determined or the Nodes are of different types then the Nodes value will have to be materialised in order to perform the equality check.

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Equals(BaseVirtualVariableNode<TNodeID, TGraphID>)

Checks this Node for equality against another Variable Node.

Declaration
public bool Equals(BaseVirtualVariableNode<TNodeID, TGraphID> other)
Parameters
Type Name Description
BaseVirtualVariableNode<TNodeID, TGraphID> other

Other Variable Node.
Returns
Type Description
bool
Remarks

Unless Virtual Equality (equality based on the Virtual RDF Provider and Virtual ID) can be determined or the Nodes are of different types then the Nodes value will have to be materialised in order to perform the equality check.

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OnMaterialise()

Takes post materialisation actions.

Declaration
protected override sealed void OnMaterialise()
Overrides

Implements

Extension Methods