Class PropertyFunctionOptimiser

An algebra optimiser that looks for property functions specified by simple triple patterns in BGPs and replaces them with actual property function patterns.

Inheritance
System.Object
PropertyFunctionOptimiser
Implements
Inherited Members
object.Equals(object)
object.Equals(object, object)
object.GetHashCode()
object.GetType()
object.MemberwiseClone()
object.ReferenceEquals(object, object)
object.ToString()
Namespace: VDS.RDF.Query.Optimisation
Assembly: dotNetRdf.dll
Syntax
public class PropertyFunctionOptimiser : IAlgebraOptimiser

Properties

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UnsafeOptimisation

Determines whether an Optimiser will perform algebra optimizations that are potentially unsafe at execution time.

Declaration
public bool UnsafeOptimisation { get; set; }
Property Value
Type Description
System.Boolean

Methods

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IsApplicable(SparqlQuery)

Returns that the optimiser is applicable.

Declaration
public bool IsApplicable(SparqlQuery q)
Parameters
Type Name Description
SparqlQuery q

Query.
Returns
Type Description
System.Boolean
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IsApplicable(SparqlUpdateCommandSet)

Returns that the optimiser is applicable.

Declaration
public bool IsApplicable(SparqlUpdateCommandSet cmds)
Parameters
Type Name Description
SparqlUpdateCommandSet cmds

Update Commands.
Returns
Type Description
System.Boolean
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Optimise(ISparqlAlgebra)

Optimises the algebra to include property functions.

Declaration
public ISparqlAlgebra Optimise(ISparqlAlgebra algebra)
Parameters
Type Name Description
ISparqlAlgebra algebra

Algebra.
Returns
Type Description
ISparqlAlgebra

Implements

Extension Methods