Class Slice

Represents the Slice Operation in the SPARQL Algebra.

Inheritance
System.Object
Slice
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 Slice : IUnaryOperator, ISparqlAlgebra, IVisitable, IProcessable

Constructors

| Improve this Doc View Source

Slice(ISparqlAlgebra, int, int)

Creates a new Slice modifier which uses a specific LIMIT and OFFSET.

Declaration
public Slice(ISparqlAlgebra pattern, int limit, int offset)
Parameters
Type Name Description
ISparqlAlgebra pattern

Pattern.
int limit

Limit.
int offset

Offset.
| Improve this Doc View Source

Slice(ISparqlAlgebra)

Creates a new Slice modifier which will detect LIMIT and OFFSET from the query.

Declaration
public Slice(ISparqlAlgebra pattern)
Parameters
Type Name Description
ISparqlAlgebra pattern

Pattern.

Properties

| Improve this Doc View Source

DetectFromQuery

Gets whether the Algebra will detect the Limit and Offset to use from the provided query.

Declaration
public bool DetectFromQuery { get; }
Property Value
Type Description
System.Boolean
| 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

InnerAlgebra

Gets the Inner Algebra.

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

Limit

Gets the Limit in use (-1 indicates no Limit).

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

Offset

Gets the Offset in use (0 indicates no Offset).

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

Variables

Gets the Variables used in the Algebra.

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()

Throws an exception since a Slice() cannot be converted back to a Graph Pattern.

Declaration
public GraphPattern ToGraphPattern()
Returns
Type Description
GraphPattern
Exceptions
Type Condition
System.NotSupportedException

Thrown since a Slice() cannot be converted to a Graph Pattern.
| Improve this Doc View Source

ToQuery()

Converts the Algebra back to a SPARQL 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()
| Improve this Doc View Source

Transform(IAlgebraOptimiser)

Transforms the Inner Algebra using the given Optimiser.

Declaration
public ISparqlAlgebra Transform(IAlgebraOptimiser optimiser)
Parameters
Type Name Description
IAlgebraOptimiser optimiser

Optimiser.
Returns
Type Description
ISparqlAlgebra

Implements

Extension Methods