Interface ISparqlQueryAlgebraProcessor<TResult, TContext>

Interface for SPARQL Query Algebra Processors.

Namespace: VDS.RDF.Query

Assembly: dotNetRdf.dll

Syntax

public interface ISparqlQueryAlgebraProcessor<out TResult, in TContext>

Type Parameters

Name	Description
TResult	Type of intermediate results produced by processing an Algebra operator.
TContext	Type of context object providing evaluation context.

Remarks

A SPARQL Query Algebra Processor is a class which knows how to evaluate the.

Methods

ProcessAlgebra(ISparqlAlgebra, TContext)

Processes SPARQL Algebra.

Declaration

TResult ProcessAlgebra(ISparqlAlgebra algebra, TContext context)

Parameters

Type	Name	Description
ISparqlAlgebra	algebra	Algebra.
TContext	context	Evaluation Context.

Returns

Type	Description
TResult

ProcessAsk(Ask, TContext)

Processes an Ask.

Declaration

TResult ProcessAsk(Ask ask, TContext context)

Parameters

Type	Name	Description
Ask	ask	Ask.
TContext	context	Evaluation Context.

Returns

Type	Description
TResult

ProcessAskAnyTriples(AskAnyTriples, TContext)

Processes an optimised ASK of the form ASK WHERE { ?s ?p ?o }.

Declaration

TResult ProcessAskAnyTriples(AskAnyTriples askAny, TContext context)

Parameters

Type	Name	Description
AskAnyTriples	askAny
TContext	context

Returns

Type	Description
TResult

ProcessBgp(IBgp, TContext)

Processes a BGP.

Declaration

TResult ProcessBgp(IBgp bgp, TContext context)

Parameters

Type	Name	Description
IBgp	bgp	BGP.
TContext	context	Evaluation Context.

Returns

Type	Description
TResult

ProcessBindPattern(BindPattern, TContext)

Process a BindPattern.

Declaration

TResult ProcessBindPattern(BindPattern bindPattern, TContext context)

Parameters

Type	Name	Description
BindPattern	bindPattern
TContext	context

Returns

Type	Description
TResult

ProcessBindings(Bindings, TContext)

Processes a Bindings modifier.

Declaration

TResult ProcessBindings(Bindings b, TContext context)

Parameters

Type	Name	Description
Bindings	b	Bindings.
TContext	context	Evaluation Context.

Returns

Type	Description
TResult

ProcessBoundFilter(BoundFilter, TContext)

Process a BoundFilter.

Declaration

TResult ProcessBoundFilter(BoundFilter filter, TContext context)

Parameters

Type	Name	Description
BoundFilter	filter
TContext	context

Returns

Type	Description
TResult

ProcessChainFilter(ChainFilter, TContext)

Process a ChainFilter.

Declaration

TResult ProcessChainFilter(ChainFilter filter, TContext context)

Parameters

Type	Name	Description
ChainFilter	filter
TContext	context

Returns

Type	Description
TResult

ProcessDistinct(Distinct, TContext)

Processes a Distinct modifier.

Declaration

TResult ProcessDistinct(Distinct distinct, TContext context)

Parameters

Type	Name	Description
Distinct	distinct	Distinct modifier.
TContext	context	Evaluation Context.

Returns

Type	Description
TResult

ProcessExistsJoin(IExistsJoin, TContext)

Processes an Exists Join.

Declaration

TResult ProcessExistsJoin(IExistsJoin existsJoin, TContext context)

Parameters

Type	Name	Description
IExistsJoin	existsJoin	Exists Join.
TContext	context	Evaluation Context.

Returns

Type	Description
TResult

ProcessExtend(Extend, TContext)

Processes an Extend.

Declaration

TResult ProcessExtend(Extend extend, TContext context)

Parameters

Type	Name	Description
Extend	extend	Extend.
TContext	context	Evaluation Context.

Returns

Type	Description
TResult

ProcessFilter(IFilter, TContext)

Processes a Filter.

Declaration

TResult ProcessFilter(IFilter filter, TContext context)

Parameters

Type	Name	Description
IFilter	filter	Filter.
TContext	context	Evaluation Context.

Returns

Type	Description
TResult

ProcessFilterPattern(FilterPattern, TContext)

Process a FilterPattern.

Declaration

TResult ProcessFilterPattern(FilterPattern filterPattern, TContext context)

Parameters

Type	Name	Description
FilterPattern	filterPattern
TContext	context

Returns

Type	Description
TResult

ProcessGraph(Graph, TContext)

Processes a Graph.

Declaration

TResult ProcessGraph(Graph graph, TContext context)

Parameters

Type	Name	Description
Graph	graph	Graph.
TContext	context	Evaluation Context.

Returns

Type	Description
TResult

ProcessGroupBy(GroupBy, TContext)

Processes a Group By.

Declaration

TResult ProcessGroupBy(GroupBy groupBy, TContext context)

Parameters

Type	Name	Description
GroupBy	groupBy	Group By.
TContext	context	Evaluation Context.

Returns

Type	Description
TResult

ProcessHaving(Having, TContext)

Processes a Having.

Declaration

TResult ProcessHaving(Having having, TContext context)

Parameters

Type	Name	Description
Having	having	Having.
TContext	context	Evaluation Context.

Returns

Type	Description
TResult

ProcessJoin(IJoin, TContext)

Processes a Join.

Declaration

TResult ProcessJoin(IJoin join, TContext context)

Parameters

Type	Name	Description
IJoin	join	Join.
TContext	context	Evaluation Context.

Returns

Type	Description
TResult

ProcessLeftJoin(ILeftJoin, TContext)

Processes a LeftJoin.

Declaration

TResult ProcessLeftJoin(ILeftJoin leftJoin, TContext context)

Parameters

Type	Name	Description
ILeftJoin	leftJoin	Left Join.
TContext	context	Evaluation Context.

Returns

Type	Description
TResult

ProcessLetPattern(LetPattern, TContext)

Process a LetPattern.

Declaration

TResult ProcessLetPattern(LetPattern letPattern, TContext context)

Parameters

Type	Name	Description
LetPattern	letPattern
TContext	context

Returns

Type	Description
TResult

ProcessMinus(IMinus, TContext)

Processes a Minus.

Declaration

TResult ProcessMinus(IMinus minus, TContext context)

Parameters

Type	Name	Description
IMinus	minus	Minus.
TContext	context	Evaluation Context.

Returns

Type	Description
TResult

ProcessNegatedPropertySet(NegatedPropertySet, TContext)

Processes a Negated Property Set.

Declaration

TResult ProcessNegatedPropertySet(NegatedPropertySet negPropSet, TContext context)

Parameters

Type	Name	Description
NegatedPropertySet	negPropSet	Negated Property Set.
TContext	context	Evaluation Context.

Returns

Type	Description
TResult

ProcessNullOperator(NullOperator, TContext)

Processes a Null Operator.

Declaration

TResult ProcessNullOperator(NullOperator nullOp, TContext context)

Parameters

Type	Name	Description
NullOperator	nullOp	Null Operator.
TContext	context	Evaluation Context.

Returns

Type	Description
TResult

ProcessOneOrMorePath(OneOrMorePath, TContext)

Processes a One or More Path.

Declaration

TResult ProcessOneOrMorePath(OneOrMorePath path, TContext context)

Parameters

Type	Name	Description
OneOrMorePath	path	Path.
TContext	context	Evaluation Context.

Returns

Type	Description
TResult

ProcessOrderBy(OrderBy, TContext)

Processes an Order By.

Declaration

TResult ProcessOrderBy(OrderBy orderBy, TContext context)

Parameters

Type	Name	Description
OrderBy	orderBy
TContext	context	Evaluation Context.

Returns

Type	Description
TResult

ProcessPropertyFunction(PropertyFunction, TContext)

Process a PropertyFunction.

Declaration

TResult ProcessPropertyFunction(PropertyFunction propertyFunction, TContext context)

Parameters

Type	Name	Description
PropertyFunction	propertyFunction
TContext	context

Returns

Type	Description
TResult

ProcessPropertyFunctionPattern(PropertyFunctionPattern, TContext)

Process a PropertyFunctionPattern.

Declaration

TResult ProcessPropertyFunctionPattern(PropertyFunctionPattern propFunctionPattern, TContext context)

Parameters

Type	Name	Description
PropertyFunctionPattern	propFunctionPattern
TContext	context

Returns

Type	Description
TResult

ProcessPropertyPath(PropertyPath, TContext)

Processes a Property Path.

Declaration

TResult ProcessPropertyPath(PropertyPath path, TContext context)

Parameters

Type	Name	Description
PropertyPath	path	Path.
TContext	context	Evaluation Context.

Returns

Type	Description
TResult

ProcessPropertyPathPattern(PropertyPathPattern, TContext)

Process a PropertyPathPattern.

Declaration

TResult ProcessPropertyPathPattern(PropertyPathPattern propertyPathPattern, TContext context)

Parameters

Type	Name	Description
PropertyPathPattern	propertyPathPattern
TContext	context

Returns

Type	Description
TResult

ProcessReduced(Reduced, TContext)

Processes a Reduced modifier.

Declaration

TResult ProcessReduced(Reduced reduced, TContext context)

Parameters

Type	Name	Description
Reduced	reduced	Reduced modifier.
TContext	context	Evaluation Context.

Returns

Type	Description
TResult

ProcessSelect(Select, TContext)

Processes a Select.

Declaration

TResult ProcessSelect(Select select, TContext context)

Parameters

Type	Name	Description
Select	select	Select.
TContext	context	Evaluation Context.

Returns

Type	Description
TResult

ProcessSelectDistinctGraphs(SelectDistinctGraphs, TContext)

Processes a Select Distinct Graphs.

Declaration

TResult ProcessSelectDistinctGraphs(SelectDistinctGraphs selDistGraphs, TContext context)

Parameters

Type	Name	Description
SelectDistinctGraphs	selDistGraphs	Select Distinct Graphs.
TContext	context	Evaluation Context.

Returns

Type	Description
TResult

ProcessService(Service, TContext)

Processes a Service.

Declaration

TResult ProcessService(Service service, TContext context)

Parameters

Type	Name	Description
Service	service	Service.
TContext	context	Evaluation Context.

Returns

Type	Description
TResult

ProcessSingleValueRestrictionFilter(SingleValueRestrictionFilter, TContext)

Process a SingleValueRestrictionFilter.

Declaration

TResult ProcessSingleValueRestrictionFilter(SingleValueRestrictionFilter filter, TContext context)

Parameters

Type	Name	Description
SingleValueRestrictionFilter	filter
TContext	context

Returns

Type	Description
TResult

ProcessSlice(Slice, TContext)

Processes a Slice modifier.

Declaration

TResult ProcessSlice(Slice slice, TContext context)

Parameters

Type	Name	Description
Slice	slice	Slice modifier.
TContext	context	Evaluation Context.

Returns

Type	Description
TResult

ProcessSubQuery(SubQuery, TContext)

Processes a sub-query.

Declaration

TResult ProcessSubQuery(SubQuery subQuery, TContext context)

Parameters

Type	Name	Description
SubQuery	subQuery	Sub-query.
TContext	context	Evaluation Context.

Returns

Type	Description
TResult

ProcessSubQueryPattern(SubQueryPattern, TContext)

Process a SubQueryPattern.

Declaration

TResult ProcessSubQueryPattern(SubQueryPattern subQueryPattern, TContext context)

Parameters

Type	Name	Description
SubQueryPattern	subQueryPattern
TContext	context

Returns

Type	Description
TResult

ProcessTriplePattern(TriplePattern, TContext)

Process a TriplePattern.

Declaration

TResult ProcessTriplePattern(TriplePattern triplePattern, TContext context)

Parameters

Type	Name	Description
TriplePattern	triplePattern
TContext	context

Returns

Type	Description
TResult

ProcessUnaryExpressionFilter(UnaryExpressionFilter, TContext)

Process a UnaryExpressionFilter.

Declaration

TResult ProcessUnaryExpressionFilter(UnaryExpressionFilter filter, TContext context)

Parameters

Type	Name	Description
UnaryExpressionFilter	filter
TContext	context

Returns

Type	Description
TResult

ProcessUnion(IUnion, TContext)

Processes a Union.

Declaration

TResult ProcessUnion(IUnion union, TContext context)

Parameters

Type	Name	Description
IUnion	union	Union.
TContext	context	Evaluation Context.

Returns

Type	Description
TResult

ProcessUnknownOperator(ISparqlAlgebra, TContext)

Invoked to process any other algebra class not covered above. In particular engine-specific optimised algebra classes.

Declaration

TResult ProcessUnknownOperator(ISparqlAlgebra op, TContext context)

Parameters

Type	Name	Description
ISparqlAlgebra	op
TContext	context

Returns

Type	Description
TResult

ProcessZeroLengthPath(ZeroLengthPath, TContext)

Processes a Zero Length Path.

Declaration

TResult ProcessZeroLengthPath(ZeroLengthPath path, TContext context)

Parameters

Type	Name	Description
ZeroLengthPath	path	Path.
TContext	context	Evaluation Context.

Returns

Type	Description
TResult

ProcessZeroOrMorePath(ZeroOrMorePath, TContext)

Processes a Zero or More Path.

Declaration

TResult ProcessZeroOrMorePath(ZeroOrMorePath zeroOrMorePath, TContext context)

Parameters

Type	Name	Description
ZeroOrMorePath	zeroOrMorePath	Path.
TContext	context	Evaluation Context.

Returns

Type	Description
TResult

Extension Methods

Extensions.ToSafeString(object)

Extensions.AsEnumerable<T>(T)