Class BaseNode

Abstract Class for Nodes, implements the two basic properties of the INode Interface.

Inheritance

System.Object

BaseNode

BaseBlankNode

BaseGraphLiteralNode

BaseLiteralNode

BaseTripleNode

BaseUriNode

BaseVariableNode

Implements

INode

System.IComparable<T><INode>

System.IComparable<T><IBlankNode>

System.IComparable<T><IGraphLiteralNode>

System.IComparable<T><ILiteralNode>

System.IComparable<T><IUriNode>

System.IComparable<T><IVariableNode>

System.IComparable<T><IRefNode>

System.IComparable<T><ITripleNode>

System.IEquatable<T><INode>

System.IEquatable<T><IBlankNode>

System.IEquatable<T><IGraphLiteralNode>

System.IEquatable<T><ILiteralNode>

System.IEquatable<T><IUriNode>

System.IEquatable<T><IVariableNode>

System.IEquatable<T><IRefNode>

System.IEquatable<T><ITripleNode>

Inherited Members

object.Equals(object, object)

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

Namespace: VDS.RDF

Assembly: dotNetRdf.dll

Syntax

public abstract class BaseNode : 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>

Constructors

BaseNode(NodeType)

Base Constructor which instantiates the Graph reference, Graph Uri and Node Type of the Node.

Declaration

protected BaseNode(NodeType type)

Parameters

Type	Name	Description
NodeType	type	Node Type.

Fields

_nodeType

Node Type for the Node.

Declaration

protected NodeType _nodeType

Field Value

Type	Description
NodeType

Properties

NodeType

Nodes have a Type.

Declaration

public NodeType NodeType { get; }

Property Value

Type	Description
NodeType

Methods

CompareTo(IBlankNode)

Nodes must implement a CompareTo method to allow them to be Sorted.

Declaration

public abstract int CompareTo(IBlankNode other)

Parameters

Type	Name	Description
IBlankNode	other	Node to compare self to.

Returns

Type	Description
int

Remarks

Implementations should use the SPARQL Term Sort Order for ordering nodes (as opposed to value sort order). Standard implementations of Node type specific comparisons can be found in ComparisonHelper.

CompareTo(IGraphLiteralNode)

Nodes must implement a CompareTo method to allow them to be Sorted.

Declaration

public abstract int CompareTo(IGraphLiteralNode other)

Parameters

Type	Name	Description
IGraphLiteralNode	other	Node to compare self to.

Returns

Type	Description
int

Remarks

Implementations should use the SPARQL Term Sort Order for ordering nodes (as opposed to value sort order). Standard implementations of Node type specific comparisons can be found in ComparisonHelper.

CompareTo(ILiteralNode)

Nodes must implement a CompareTo method to allow them to be Sorted.

Declaration

public abstract int CompareTo(ILiteralNode other)

Parameters

Type	Name	Description
ILiteralNode	other	Node to compare self to.

Returns

Type	Description
int

Remarks

Implementations should use the SPARQL Term Sort Order for ordering nodes (as opposed to value sort order). Standard implementations of Node type specific comparisons can be found in ComparisonHelper.

CompareTo(INode)

Nodes must implement a CompareTo method to allow them to be Sorted.

Declaration

public abstract int CompareTo(INode other)

Parameters

Type	Name	Description
INode	other	Node to compare self to.

Returns

Type	Description
int

Remarks

Implementations should use the SPARQL Term Sort Order for ordering nodes (as opposed to value sort order). Standard implementations of Node type specific comparisons can be found in ComparisonHelper.

CompareTo(IRefNode)

Nodes must implement a CompareTo method to allow them to be Sorted.

Declaration

public abstract int CompareTo(IRefNode other)

Parameters

Type	Name	Description
IRefNode	other	Node to compare self to.

Returns

Type	Description
int

Remarks

Implementations should use the SPARQL Term Sort Order for ordering nodes (as opposed to value sort order). Standard implementations of Node type specific comparisons can be found in ComparisonHelper.

CompareTo(ITripleNode)

Nodes must implement a CompareTo method to allow them to be Sorted.

Declaration

public abstract int CompareTo(ITripleNode other)

Parameters

Type	Name	Description
ITripleNode	other	Node to compare self to.

Returns

Type	Description
int

Remarks

Implementations should use the SPARQL Term Sort Order for ordering nodes (as opposed to value sort order). Standard implementations of Node type specific comparisons can be found in ComparisonHelper.

CompareTo(IUriNode)

Nodes must implement a CompareTo method to allow them to be Sorted.

Declaration

public abstract int CompareTo(IUriNode other)

Parameters

Type	Name	Description
IUriNode	other	Node to compare self to.

Returns

Type	Description
int

Remarks

Implementations should use the SPARQL Term Sort Order for ordering nodes (as opposed to value sort order). Standard implementations of Node type specific comparisons can be found in ComparisonHelper.

CompareTo(IVariableNode)

Nodes must implement a CompareTo method to allow them to be Sorted.

Declaration

public abstract int CompareTo(IVariableNode other)

Parameters

Type	Name	Description
IVariableNode	other	Node to compare self to.

Returns

Type	Description
int

Remarks

Implementations should use the SPARQL Term Sort Order for ordering nodes (as opposed to value sort order). Standard implementations of Node type specific comparisons can be found in ComparisonHelper.

Equals(object)

Nodes must implement an Equals method.

Declaration

public override abstract bool Equals(object obj)

Parameters

Type	Name	Description
System.Object	obj	Object to compare against.

Returns

Type	Description
System.Boolean

Overrides

object.Equals(object)

Equals(IBlankNode)

Nodes must implement an Equals method so we can do type specific equality.

Declaration

public abstract bool Equals(IBlankNode other)

Parameters

Type	Name	Description
IBlankNode	other	Node to check for equality.

Returns

Type	Description
System.Boolean

Remarks

Nodes implementations are also required to implement an override of the non-generic Equals method. Standard implementations of some equality comparisons can be found in EqualityHelper.

Equals(IGraphLiteralNode)

Nodes must implement an Equals method so we can do type specific equality.

Declaration

public abstract bool Equals(IGraphLiteralNode other)

Parameters

Type	Name	Description
IGraphLiteralNode	other	Node to check for equality.

Returns

Type	Description
System.Boolean

Remarks

Nodes implementations are also required to implement an override of the non-generic Equals method. Standard implementations of some equality comparisons can be found in EqualityHelper.

Equals(ILiteralNode)

Nodes must implement an Equals method so we can do type specific equality.

Declaration

public abstract bool Equals(ILiteralNode other)

Parameters

Type	Name	Description
ILiteralNode	other	Node to check for equality.

Returns

Type	Description
System.Boolean

Remarks

Nodes implementations are also required to implement an override of the non-generic Equals method. Standard implementations of some equality comparisons can be found in EqualityHelper.

Equals(INode)

Nodes must implement an Equals method so we can do type specific equality.

Declaration

public abstract bool Equals(INode other)

Parameters

Type	Name	Description
INode	other	Node to check for equality.

Returns

Type	Description
System.Boolean

Remarks

Nodes implementations are also required to implement an override of the non-generic Equals method. Standard implementations of some equality comparisons can be found in EqualityHelper.

Equals(IRefNode)

Nodes must implement an Equals method so we can do type specific equality.

Declaration

public abstract bool Equals(IRefNode other)

Parameters

Type	Name	Description
IRefNode	other	Node to check for equality.

Returns

Type	Description
System.Boolean

Remarks

Nodes implementations are also required to implement an override of the non-generic Equals method. Standard implementations of some equality comparisons can be found in EqualityHelper.

Equals(ITripleNode)

Nodes must implement an Equals method so we can do type specific equality.

Declaration

public abstract bool Equals(ITripleNode other)

Parameters

Type	Name	Description
ITripleNode	other	Node to check for equality.

Returns

Type	Description
System.Boolean

Remarks

Nodes implementations are also required to implement an override of the non-generic Equals method. Standard implementations of some equality comparisons can be found in EqualityHelper.

Equals(IUriNode)

Nodes must implement an Equals method so we can do type specific equality.

Declaration

public abstract bool Equals(IUriNode other)

Parameters

Type	Name	Description
IUriNode	other	Node to check for equality.

Returns

Type	Description
System.Boolean

Remarks

Nodes implementations are also required to implement an override of the non-generic Equals method. Standard implementations of some equality comparisons can be found in EqualityHelper.

Equals(IVariableNode)

Nodes must implement an Equals method so we can do type specific equality.

Declaration

public abstract bool Equals(IVariableNode other)

Parameters

Type	Name	Description
IVariableNode	other	Node to check for equality.

Returns

Type	Description
System.Boolean

Remarks

Nodes implementations are also required to implement an override of the non-generic Equals method. Standard implementations of some equality comparisons can be found in EqualityHelper.

GetHashCode()

Serves as the default hash function.

Declaration

public override abstract int GetHashCode()

Returns

Type	Description
int	A hash code for the current object.

Overrides

object.GetHashCode()

ToString()

Nodes must implement a ToString method.

Declaration

public override abstract string ToString()

Returns

Type	Description
string

Overrides

object.ToString()

Remarks

Essential for the implementation of GetHashCode to work correctly, Nodes should generate a String representation that is 'unique' as far as that is possible.

Any two Nodes which match via the Equals method (based on strict RDF Specification Equality) should produce the same String representation since Hash Codes are generated by calling GetHashCode on this String.

ToString(INodeFormatter, TripleSegment)

Gets the String representation of the Node formatted with the given Node formatter.

Declaration

public virtual string ToString(INodeFormatter formatter, TripleSegment segment)

Parameters

Type	Name	Description
INodeFormatter	formatter	Formatter.
TripleSegment	segment	Triple Segment.

Returns

Type	Description
string

ToString(INodeFormatter)

Gets the String representation of the Node formatted with the given Node formatter.

Declaration

public virtual string ToString(INodeFormatter formatter)

Parameters

Type	Name	Description
INodeFormatter	formatter	Formatter.

Returns

Type	Description
string

Operators

operator ==(BaseNode, BaseNode)

The Equality operator is defined for Nodes.

Declaration

public static bool operator ==(BaseNode a, BaseNode b)

Parameters

Type	Name	Description
BaseNode	a	First Node.
BaseNode	b	Second Node.

Returns

Type	Description
System.Boolean	Whether the two Nodes are equal.

Remarks

Uses the Equals method to evaluate the result.

operator !=(BaseNode, BaseNode)

The Non-Equality operator is defined for Nodes.

Declaration

public static bool operator !=(BaseNode a, BaseNode b)

Parameters

Type	Name	Description
BaseNode	a	First Node.
BaseNode	b	Second Node.

Returns

Type	Description
System.Boolean	Whether the two Nodes are non-equal.

Remarks

Uses the Equals method to evaluate the result.

Implements

INode

System.IComparable<T>

System.IComparable<T>

System.IComparable<T>

System.IComparable<T>

System.IComparable<T>

System.IComparable<T>

System.IComparable<T>

System.IComparable<T>

System.IEquatable<T>

System.IEquatable<T>

System.IEquatable<T>

System.IEquatable<T>

System.IEquatable<T>

System.IEquatable<T>

System.IEquatable<T>

System.IEquatable<T>

Extension Methods

Extensions.ToSafeString(object)

Extensions.AsEnumerable<T>(T)

DynamicExtensions.AsDynamic(INode, IGraph, Uri)

Extensions.EffectiveBooleanValue(INode)

Extensions.IsListRoot(INode, IGraph)

ValuedNodeExtensions.AsValuedNode(INode)