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GroupBy Class

Represents a Grouping.
Inheritance Hierarchy
SystemObject
  VDS.RDF.Query.AlgebraGroupBy

Namespace:  VDS.RDF.Query.Algebra
Assembly:  dotNetRDF (in dotNetRDF.dll) Version:
Syntax
public class GroupBy : IUnaryOperator, ISparqlAlgebra

The GroupBy type exposes the following members.

Constructors
  NameDescription
Public methodGroupBy
Creates a new Group By.
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Properties
  NameDescription
Public propertyAggregates
Gets the Aggregates that will be applied.
Public propertyFixedVariables
Gets the enumeration of fixed variables in the algebra i.e. variables that are guaranteed to have a bound value.
Public propertyFloatingVariables
Gets the enumeration of floating variables in the algebra i.e. variables that are not guaranteed to have a bound value.
Public propertyGrouping
Gets the Grouping that is used.
Public propertyInnerAlgebra
Gets the Inner Algebra.
Public propertyVariables
Gets the Variables used in the Algebra.
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Methods
  NameDescription
Public methodEquals
Determines whether the specified object is equal to the current object.
(Inherited from Object.)
Public methodEvaluate
Evaluates a Group By by generating a GroupMultiset from the Input Multiset.
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.)
Protected methodMemberwiseClone
Creates a shallow copy of the current Object.
(Inherited from Object.)
Public methodToGraphPattern
Throws an exception since GroupBy() cannot be converted to a Graph Pattern.
Public methodToQuery
Converts the Algebra back to a SPARQL Query.
Public methodToString
Gets the String representation of the.
(Overrides ObjectToString.)
Public methodTransform
Transforms the Inner Algebra using the given Optimiser.
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See Also