Class BlankNodePattern

Pattern which matches temporary variables.

Inheritance
object
PatternItem
BlankNodePattern
Inherited Members
Namespace: VDS.RDF.Query.Patterns
Assembly: dotNetRdf.dll
Syntax
public class BlankNodePattern : PatternItem

Constructors

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BlankNodePattern(string)

Creates a new Pattern representing a Blank Node.

Declaration
public BlankNodePattern(string name)
Parameters
Type Name Description
string name

Blank Node ID.
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BlankNodePattern(string, bool)

Creates a new Pattern representing a Blank Node.

Declaration
public BlankNodePattern(string name, bool rigorousEvaluation)
Parameters
Type Name Description
string name

Blank Node ID.
bool rigorousEvaluation

Whether to force rigorous evaluation.

Properties

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ID

Gets the Blank Node ID.

Declaration
public string ID { get; }
Property Value
Type Description
string
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IsFixed

Return true if this pattern item contains no variables, false otherwise.

Declaration
public override bool IsFixed { get; }
Property Value
Type Description
bool
Overrides
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Variables

Gets the Temporary Variable Name of this Pattern.

Declaration
public override IEnumerable<string> Variables { get; }
Property Value
Type Description
IEnumerable<string>
Overrides

Methods

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Accepts(IPatternEvaluationContext, INode, ISet)

Checks whether the given Node is a valid value for the Temporary Variable.

Declaration
public override bool Accepts(IPatternEvaluationContext context, INode obj, ISet s)
Parameters
Type Name Description
IPatternEvaluationContext context

Evaluation Context.
INode obj

Node to test.
ISet s
Returns
Type Description
bool
Overrides
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AddBindings(INode, ISet)

Returns the variable bindings created when this pattern item accepts the given node to the specified set.

Declaration
public override void AddBindings(INode forNode, ISet toSet)
Parameters
Type Name Description
INode forNode
ISet toSet
Overrides
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Bind(ISet)

Returns a node created by applying the variable bindings in the input set to this pattern item.

Declaration
public override INode Bind(ISet variableBindings)
Parameters
Type Name Description
ISet variableBindings
Returns
Type Description
INode

A node binding for the pattern item or null if no binding is possible with the provide set.
Overrides
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Construct(ConstructContext)

Constructs a Node based on the given Set.

Declaration
public override INode Construct(ConstructContext context)
Parameters
Type Name Description
ConstructContext context

Construct Context.
Returns
Type Description
INode
Overrides
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ToString()

Gets the String representation of this Pattern.

Declaration
public override string ToString()
Returns
Type Description
string
Overrides

Extension Methods