Class BasePathOperator

Abstract Base Class for Path Operators.

Inheritance
System.Object
BasePathOperator
BaseArbitraryLengthPathOperator
PropertyPath
ZeroLengthPath
Implements
Inherited Members
object.Equals(object)
object.Equals(object, object)
object.GetHashCode()
object.GetType()
object.MemberwiseClone()
object.ReferenceEquals(object, object)
Namespace: VDS.RDF.Query.Algebra
Assembly: dotNetRdf.dll
Syntax
public abstract class BasePathOperator : IPathOperator, ISparqlAlgebra, IVisitable, IProcessable

Constructors

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BasePathOperator(PatternItem, ISparqlPath, PatternItem)

Creates a new Path Operator.

Declaration
public BasePathOperator(PatternItem start, ISparqlPath path, PatternItem end)
Parameters
Type Name Description
PatternItem start

Path Start.
ISparqlPath path

Property Path.
PatternItem end

Path End.

Properties

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FixedVariables

Gets the enumeration of fixed variables in the algebra i.e. variables that are guaranteed to have a bound value.

Declaration
public IEnumerable<string> FixedVariables { get; }
Property Value
Type Description
System.Collections.Generic.IEnumerable<T><string>
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FloatingVariables

Gets the enumeration of floating variables in the algebra i.e. variables that are not guaranteed to have a bound value.

Declaration
public IEnumerable<string> FloatingVariables { get; }
Property Value
Type Description
System.Collections.Generic.IEnumerable<T><string>
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Path

Gets the Property Path.

Declaration
public ISparqlPath Path { get; }
Property Value
Type Description
ISparqlPath
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PathEnd

Gets the Path End.

Declaration
public PatternItem PathEnd { get; }
Property Value
Type Description
PatternItem
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PathStart

Gets the Path Start.

Declaration
public PatternItem PathStart { get; }
Property Value
Type Description
PatternItem
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Variables

Gets the Variables used in the Algebra.

Declaration
public IEnumerable<string> Variables { get; }
Property Value
Type Description
System.Collections.Generic.IEnumerable<T><string>

Methods

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Accept<T>(ISparqlAlgebraVisitor<T>)

Declaration
public abstract T Accept<T>(ISparqlAlgebraVisitor<T> visitor)
Parameters
Type Name Description
ISparqlAlgebraVisitor<T> visitor
Returns
Type Description
T
Type Parameters
Name Description
T
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Accept<TResult, TContext>(ISparqlQueryAlgebraProcessor<TResult, TContext>, TContext)

Declaration
public abstract TResult Accept<TResult, TContext>(ISparqlQueryAlgebraProcessor<TResult, TContext> processor, TContext context)
Parameters
Type Name Description
ISparqlQueryAlgebraProcessor<TResult, TContext> processor
TContext context
Returns
Type Description
TResult
Type Parameters
Name Description
TResult
TContext
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ToGraphPattern()

Transforms the Algebra back into a Graph Pattern.

Declaration
public abstract GraphPattern ToGraphPattern()
Returns
Type Description
GraphPattern
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ToQuery()

Transforms the Algebra back into a Query.

Declaration
public SparqlQuery ToQuery()
Returns
Type Description
SparqlQuery
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ToString()

Gets the String representation of the Algebra.

Declaration
public override abstract string ToString()
Returns
Type Description
string
Overrides
object.ToString()

Implements

Extension Methods