Class VariablePattern

Pattern which matches Variables.

Inheritance

object

PatternItem

VariablePattern

Inherited Members

PatternItem._context

PatternItem.BindingContext

PatternItem.RigorousEvaluation

PatternItem.Repeated

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

Namespace: VDS.RDF.Query.Patterns

Assembly: dotNetRdf.dll

Syntax

public class VariablePattern : PatternItem

Constructors

VariablePattern(string)

Creates a new Variable Pattern.

Declaration

public VariablePattern(string name)

Parameters

Type	Name	Description
string	name	Variable name.

VariablePattern(string, bool)

Creates a new Variable Pattern.

Declaration

public VariablePattern(string name, bool rigorousEvaluation)

Parameters

Type	Name	Description
string	name	Variable name.
bool	rigorousEvaluation	Whether to force rigorous evaluation.

Properties

IsFixed

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

Declaration

public override bool IsFixed { get; }

Property Value

Type	Description
bool

Overrides

PatternItem.IsFixed

VariableName

Gets the name of the variable that this pattern matches.

Declaration

public string VariableName { get; }

Property Value

Type	Description
string

Variables

Gets the Name of the Variable this Pattern matches.

Declaration

public override IEnumerable<string> Variables { get; }

Property Value

Type	Description
IEnumerable<string>

Overrides

PatternItem.Variables

Methods

Accepts(IPatternEvaluationContext, INode, ISet)

Checks whether the given Node is a valid value for the Variable in the current Binding Context.

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

PatternItem.Accepts(IPatternEvaluationContext, INode, ISet)

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

PatternItem.AddBindings(INode, ISet)

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

PatternItem.Bind(ISet)

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	The Node which is bound to this Variable in this Solution.

Overrides

PatternItem.Construct(ConstructContext)

ToString()

Gets the String representation of this pattern.

Declaration

public override string ToString()

Returns

Type	Description
string

Overrides

PatternItem.ToString()

Extension Methods

Extensions.ToSafeString(object)

Extensions.AsEnumerable<T>(T)