Class SubQuery

Represents a sub-query as an Algebra operator (only used when strict algebra is generated).

Inheritance
System.Object
SubQuery
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 class SubQuery : ITerminalOperator, ISparqlAlgebra, IVisitable, IProcessable

Constructors

| Improve this Doc View Source

SubQuery(SparqlQuery)

Creates a new subquery operator.

Declaration
public SubQuery(SparqlQuery q)
Parameters
Type Name Description
SparqlQuery q

Subquery.

Properties

| Improve this Doc View Source

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>
| Improve this Doc View Source

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>
| Improve this Doc View Source

Query

Declaration
public SparqlQuery Query { get; }
Property Value
Type Description
SparqlQuery
| Improve this Doc View Source

Variables

Gets the variables used in the subquery which are projected out of it.

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

Methods

| Improve this Doc View Source

Accept<T>(ISparqlAlgebraVisitor<T>)

Declaration
public T Accept<T>(ISparqlAlgebraVisitor<T> visitor)
Parameters
Type Name Description
ISparqlAlgebraVisitor<T> visitor
Returns
Type Description
T
Type Parameters
Name Description
T
| Improve this Doc View Source

Accept<TResult, TContext>(ISparqlQueryAlgebraProcessor<TResult, TContext>, TContext)

Declaration
public 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
| Improve this Doc View Source

ToGraphPattern()

Converts the algebra back into a Subquery.

Declaration
public GraphPattern ToGraphPattern()
Returns
Type Description
GraphPattern
| Improve this Doc View Source

ToQuery()

Converts the algebra back into a Query.

Declaration
public SparqlQuery ToQuery()
Returns
Type Description
SparqlQuery
| Improve this Doc View Source

ToString()

Gets the string representation of the algebra.

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

Implements

Extension Methods