Class BaseGroupBy

Abstract Base Class for classes representing Sparql GROUP BY clauses.
Inheritance
System.Object
BaseGroupBy
GroupByExpression
GroupByVariable
Implements
Inherited Members
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.ToString()
Namespace: VDS.RDF.Query.Grouping
Assembly: dotNetRDF.dll
Syntax
public abstract class BaseGroupBy : ISparqlGroupBy

Fields

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_child

Child Grouping.
Declaration
protected ISparqlGroupBy _child
Field Value
Type Description
ISparqlGroupBy

Properties

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AssignVariable

Gets/Sets the Variable that the grouped upon value should be assigned to.
Declaration
public string AssignVariable { get; set; }
Property Value
Type Description
System.String
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Child

Gets/Sets the Child GROUP BY Clause.
Declaration
public ISparqlGroupBy Child { get; set; }
Property Value
Type Description
ISparqlGroupBy
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Expression

Gets the Expression used to GROUP BY.
Declaration
public abstract ISparqlExpression Expression { get; }
Property Value
Type Description
ISparqlExpression
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ProjectableVariables

Gets the Projectable Variables used in the GROUP BY i.e. Variables that are grouped upon and Assigned Variables.
Declaration
public abstract IEnumerable<string> ProjectableVariables { get; }
Property Value
Type Description
System.Collections.Generic.IEnumerable<System.String>
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Variables

Gets the Variables involved in this Group By.
Declaration
public abstract IEnumerable<string> Variables { get; }
Property Value
Type Description
System.Collections.Generic.IEnumerable<System.String>

Methods

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Apply(SparqlEvaluationContext)

Applies the Grouping to the Binder.
Declaration
public abstract List<BindingGroup> Apply(SparqlEvaluationContext context)
Parameters
Type Name Description
SparqlEvaluationContext context Evaluation Context.
Returns
Type Description
System.Collections.Generic.List<BindingGroup>
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Apply(SparqlEvaluationContext, List<BindingGroup>)

Applies the Grouping to the Binder subdividing Groups from a previous Grouping.
Declaration
public abstract List<BindingGroup> Apply(SparqlEvaluationContext context, List<BindingGroup> groups)
Parameters
Type Name Description
SparqlEvaluationContext context Evaluation Context.
System.Collections.Generic.List<BindingGroup> groups Groups to subdivide.
Returns
Type Description
System.Collections.Generic.List<BindingGroup>

Implements

Extension Methods