Click or drag to resize

VirtualAlgebraOptimiserTNodeID, TGraphID Class

Abstract implementation of an algebra optimiser and expression transformer which optimises the algebra to replace any Node terms with Virtual Node terms for more efficient querying of virtualised RDF data.
Inheritance Hierarchy
  VDS.RDF.Query.OptimisationVirtualAlgebraOptimiserTNodeID, TGraphID

Namespace:  VDS.RDF.Query.Optimisation
Assembly:  dotNetRDF (in dotNetRDF.dll) Version:
public abstract class VirtualAlgebraOptimiser<TNodeID, TGraphID> : IAlgebraOptimiser, 

Type Parameters

Node ID Type.
Graph ID Type.

The VirtualAlgebraOptimiserTNodeID, TGraphID type exposes the following members.

Protected methodCreateVirtualNode
Creates a virtual Node based on a given Value.
Public methodEquals
Determines whether the specified object is equal to the current object.
(Inherited from Object.)
Protected methodFinalize
Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.
(Inherited from Object.)
Public methodGetHashCode
Serves as the default hash function.
(Inherited from Object.)
Public methodGetType
Gets the Type of the current instance.
(Inherited from Object.)
Public methodIsApplicable(SparqlQuery)
Returns that the optimiser is applicable to all queries.
Public methodIsApplicable(SparqlUpdateCommandSet)
Returns that the optimiser is applicable to all updates.
Protected methodMemberwiseClone
Creates a shallow copy of the current Object.
(Inherited from Object.)
Public methodOptimise
Optimises the algebra so that all Node terms are virtualised.
Protected methodSubstitutePrimaryExpression
Substitutes a primary expression which is a Node term for a virtual Node term.
Public methodToString
Returns a string that represents the current object.
(Inherited from Object.)
Public methodTransform
Transforms an expression so Node terms are virtualised.
Protected field_provider
Virtual RDF Provider.
See Also