Class ExplainQueryProcessor

A Query Processor which evaluates queries while printing explanations to any/all of Debug, Trace, Console Standard Output and Console Standard Error.

Inheritance

object

LeviathanQueryProcessor

ExplainQueryProcessor

Implements

ISparqlQueryProcessor

ISparqlQueryAlgebraProcessor<BaseMultiset, SparqlEvaluationContext>

Inherited Members

LeviathanQueryProcessor.ProcessQuery(SparqlQuery)

LeviathanQueryProcessor.ProcessQuery(IRdfHandler, ISparqlResultsHandler, SparqlQuery)

LeviathanQueryProcessor.ProcessQuery(SparqlQuery, GraphCallback, SparqlResultsCallback, object)

LeviathanQueryProcessor.ProcessQueryAsync(SparqlQuery)

LeviathanQueryProcessor.ProcessQueryAsync(IRdfHandler, ISparqlResultsHandler, SparqlQuery)

LeviathanQueryProcessor.ProcessQuery(IRdfHandler, ISparqlResultsHandler, SparqlQuery, QueryCallback, object)

LeviathanQueryProcessor.GetContext()

LeviathanQueryProcessor.ProcessAlgebra(ISparqlAlgebra, SparqlEvaluationContext)

LeviathanQueryProcessor.ProcessAskAnyTriples(AskAnyTriples, SparqlEvaluationContext)

LeviathanQueryProcessor.GetPathStarts(IPathOperator, SparqlEvaluationContext, List<List<INode>>, bool)

LeviathanQueryProcessor.EvaluateStep(IPathOperator, SparqlEvaluationContext, List<INode>, bool)

LeviathanQueryProcessor.ProcessBoundFilter(BoundFilter, SparqlEvaluationContext)

LeviathanQueryProcessor.ProcessUnaryExpressionFilter(UnaryExpressionFilter, SparqlEvaluationContext)

LeviathanQueryProcessor.ProcessChainFilter(ChainFilter, SparqlEvaluationContext)

LeviathanQueryProcessor.ProcessSingleValueRestrictionFilter(SingleValueRestrictionFilter, SparqlEvaluationContext)

LeviathanQueryProcessor.ProcessBindPattern(BindPattern, SparqlEvaluationContext)

LeviathanQueryProcessor.ProcessFilterPattern(FilterPattern, SparqlEvaluationContext)

LeviathanQueryProcessor.ProcessLetPattern(LetPattern, SparqlEvaluationContext)

LeviathanQueryProcessor.ProcessPropertyFunction(PropertyFunction, SparqlEvaluationContext)

LeviathanQueryProcessor.ProcessPropertyPathPattern(PropertyPathPattern, SparqlEvaluationContext)

LeviathanQueryProcessor.ProcessSubQueryPattern(SubQueryPattern, SparqlEvaluationContext)

LeviathanQueryProcessor.ProcessPropertyFunctionPattern(PropertyFunctionPattern, SparqlEvaluationContext)

LeviathanQueryProcessor.ProcessTriplePattern(TriplePattern, SparqlEvaluationContext)

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: VDS.RDF.Query

Assembly: dotNetRdf.dll

Syntax

public class ExplainQueryProcessor : LeviathanQueryProcessor, ISparqlQueryProcessor, ISparqlQueryAlgebraProcessor<BaseMultiset, SparqlEvaluationContext>

Constructors

ExplainQueryProcessor(IInMemoryQueryableStore)

Creates a new Explain Query Processor that will use the Default Explanation Level.

Declaration

public ExplainQueryProcessor(IInMemoryQueryableStore store)

Parameters

Type	Name	Description
IInMemoryQueryableStore	store	Triple Store.

ExplainQueryProcessor(IInMemoryQueryableStore, ExplanationLevel)

Creates a new Explain Query Processor with the desired Explanation Level.

Declaration

public ExplainQueryProcessor(IInMemoryQueryableStore store, ExplanationLevel level)

Parameters

Type	Name	Description
IInMemoryQueryableStore	store	Triple Store.
ExplanationLevel	level	Explanation Level.

ExplainQueryProcessor(ISparqlDataset)

Creates a new Explain Query Processor that will use the Default Explanation Level.

Declaration

public ExplainQueryProcessor(ISparqlDataset dataset)

Parameters

Type	Name	Description
ISparqlDataset	dataset	Dataset.

ExplainQueryProcessor(ISparqlDataset, ExplanationLevel)

Creates a new Explain Query Processor with the desired Explanation Level.

Declaration

public ExplainQueryProcessor(ISparqlDataset dataset, ExplanationLevel level)

Parameters

Type	Name	Description
ISparqlDataset	dataset	Dataset.
ExplanationLevel	level	Explanation Level.

Properties

ExplanationLevel

Gets/Sets the Explanation Level.

Declaration

public ExplanationLevel ExplanationLevel { get; set; }

Property Value

Type	Description
ExplanationLevel

Methods

ProcessAsk(Ask, SparqlEvaluationContext)

Processes an Ask.

Declaration

public override BaseMultiset ProcessAsk(Ask ask, SparqlEvaluationContext context)

Parameters

Type	Name	Description
Ask	ask	Ask.
SparqlEvaluationContext	context	SPARQL Evaluation Context.

Returns

Type	Description
BaseMultiset

Overrides

LeviathanQueryProcessor.ProcessAsk(Ask, SparqlEvaluationContext)

ProcessBgp(IBgp, SparqlEvaluationContext)

Processes a BGP.

Declaration

public override BaseMultiset ProcessBgp(IBgp bgp, SparqlEvaluationContext context)

Parameters

Type	Name	Description
IBgp	bgp	BGP.
SparqlEvaluationContext	context	SPARQL Evaluation Context.

Returns

Type	Description
BaseMultiset

Overrides

LeviathanQueryProcessor.ProcessBgp(IBgp, SparqlEvaluationContext)

ProcessBindings(Bindings, SparqlEvaluationContext)

Processes a Bindings modifier.

Declaration

public override BaseMultiset ProcessBindings(Bindings b, SparqlEvaluationContext context)

Parameters

Type	Name	Description
Bindings	b	Bindings.
SparqlEvaluationContext	context	SPARQL Evaluation Context.

Returns

Type	Description
BaseMultiset

Overrides

LeviathanQueryProcessor.ProcessBindings(Bindings, SparqlEvaluationContext)

ProcessDistinct(Distinct, SparqlEvaluationContext)

Processes a Distinct modifier.

Declaration

public override BaseMultiset ProcessDistinct(Distinct distinct, SparqlEvaluationContext context)

Parameters

Type	Name	Description
Distinct	distinct	Distinct modifier.
SparqlEvaluationContext	context	SPARQL Evaluation Context.

Returns

Type	Description
BaseMultiset

Overrides

LeviathanQueryProcessor.ProcessDistinct(Distinct, SparqlEvaluationContext)

ProcessExistsJoin(IExistsJoin, SparqlEvaluationContext)

Processes an Exists Join.

Declaration

public override BaseMultiset ProcessExistsJoin(IExistsJoin existsJoin, SparqlEvaluationContext context)

Parameters

Type	Name	Description
IExistsJoin	existsJoin	Exists Join.
SparqlEvaluationContext	context	SPARQL Evaluation Context.

Returns

Type	Description
BaseMultiset

Overrides

LeviathanQueryProcessor.ProcessExistsJoin(IExistsJoin, SparqlEvaluationContext)

ProcessExtend(Extend, SparqlEvaluationContext)

Processes an Extend.

Declaration

public override BaseMultiset ProcessExtend(Extend extend, SparqlEvaluationContext context)

Parameters

Type	Name	Description
Extend	extend	Extend.
SparqlEvaluationContext	context	SPARQL Evaluation Context.

Returns

Type	Description
BaseMultiset

Overrides

LeviathanQueryProcessor.ProcessExtend(Extend, SparqlEvaluationContext)

ProcessFilter(IFilter, SparqlEvaluationContext)

Processes a Filter.

Declaration

public override BaseMultiset ProcessFilter(IFilter filter, SparqlEvaluationContext context)

Parameters

Type	Name	Description
IFilter	filter	Filter.
SparqlEvaluationContext	context	SPARQL Evaluation Context.

Returns

Type	Description
BaseMultiset

Overrides

LeviathanQueryProcessor.ProcessFilter(IFilter, SparqlEvaluationContext)

ProcessGraph(Graph, SparqlEvaluationContext)

Processes a Graph.

Declaration

public override BaseMultiset ProcessGraph(Graph graph, SparqlEvaluationContext context)

Parameters

Type	Name	Description
Graph	graph	Graph.
SparqlEvaluationContext	context	SPARQL Evaluation Context.

Returns

Type	Description
BaseMultiset

Overrides

LeviathanQueryProcessor.ProcessGraph(Graph, SparqlEvaluationContext)

ProcessGroupBy(GroupBy, SparqlEvaluationContext)

Processes a Group By.

Declaration

public override BaseMultiset ProcessGroupBy(GroupBy groupBy, SparqlEvaluationContext context)

Parameters

Type	Name	Description
GroupBy	groupBy	Group By.
SparqlEvaluationContext	context	SPARQL Evaluation Context.

Returns

Type	Description
BaseMultiset

Overrides

LeviathanQueryProcessor.ProcessGroupBy(GroupBy, SparqlEvaluationContext)

ProcessHaving(Having, SparqlEvaluationContext)

Processes a Having.

Declaration

public override BaseMultiset ProcessHaving(Having having, SparqlEvaluationContext context)

Parameters

Type	Name	Description
Having	having	Having.
SparqlEvaluationContext	context	SPARQL Evaluation Context.

Returns

Type	Description
BaseMultiset

Overrides

LeviathanQueryProcessor.ProcessHaving(Having, SparqlEvaluationContext)

ProcessJoin(IJoin, SparqlEvaluationContext)

Processes a Join.

Declaration

public override BaseMultiset ProcessJoin(IJoin join, SparqlEvaluationContext context)

Parameters

Type	Name	Description
IJoin	join	Join.
SparqlEvaluationContext	context	SPARQL Evaluation Context.

Returns

Type	Description
BaseMultiset

Overrides

LeviathanQueryProcessor.ProcessJoin(IJoin, SparqlEvaluationContext)

ProcessLeftJoin(ILeftJoin, SparqlEvaluationContext)

Processes a LeftJoin.

Declaration

public override BaseMultiset ProcessLeftJoin(ILeftJoin leftJoin, SparqlEvaluationContext context)

Parameters

Type	Name	Description
ILeftJoin	leftJoin	Left Join.
SparqlEvaluationContext	context	SPARQL Evaluation Context.

Returns

Type	Description
BaseMultiset

Overrides

LeviathanQueryProcessor.ProcessLeftJoin(ILeftJoin, SparqlEvaluationContext)

ProcessMinus(IMinus, SparqlEvaluationContext)

Processes a Minus.

Declaration

public override BaseMultiset ProcessMinus(IMinus minus, SparqlEvaluationContext context)

Parameters

Type	Name	Description
IMinus	minus	Minus.
SparqlEvaluationContext	context	SPARQL Evaluation Context.

Returns

Type	Description
BaseMultiset

Overrides

LeviathanQueryProcessor.ProcessMinus(IMinus, SparqlEvaluationContext)

ProcessNegatedPropertySet(NegatedPropertySet, SparqlEvaluationContext)

Processes a Negated Property Set.

Declaration

public override BaseMultiset ProcessNegatedPropertySet(NegatedPropertySet negPropSet, SparqlEvaluationContext context)

Parameters

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

Returns

Type	Description
BaseMultiset

Overrides

LeviathanQueryProcessor.ProcessNegatedPropertySet(NegatedPropertySet, SparqlEvaluationContext)

ProcessNullOperator(NullOperator, SparqlEvaluationContext)

Processes a Null Operator.

Declaration

public override BaseMultiset ProcessNullOperator(NullOperator nullOp, SparqlEvaluationContext context)

Parameters

Type	Name	Description
NullOperator	nullOp	Null Operator.
SparqlEvaluationContext	context	SPARQL Evaluation Context.

Returns

Type	Description
BaseMultiset

Overrides

LeviathanQueryProcessor.ProcessNullOperator(NullOperator, SparqlEvaluationContext)

ProcessOneOrMorePath(OneOrMorePath, SparqlEvaluationContext)

Processes a One or More Path.

Declaration

public override BaseMultiset ProcessOneOrMorePath(OneOrMorePath path, SparqlEvaluationContext context)

Parameters

Type	Name	Description
OneOrMorePath	path	Path.
SparqlEvaluationContext	context	SPARQL Evaluation Context.

Returns

Type	Description
BaseMultiset

Overrides

LeviathanQueryProcessor.ProcessOneOrMorePath(OneOrMorePath, SparqlEvaluationContext)

ProcessOrderBy(OrderBy, SparqlEvaluationContext)

Processes an Order By.

Declaration

public override BaseMultiset ProcessOrderBy(OrderBy orderBy, SparqlEvaluationContext context)

Parameters

Type	Name	Description
OrderBy	orderBy
SparqlEvaluationContext	context	SPARQL Evaluation Context.

Returns

Type	Description
BaseMultiset

Overrides

LeviathanQueryProcessor.ProcessOrderBy(OrderBy, SparqlEvaluationContext)

ProcessPropertyPath(PropertyPath, SparqlEvaluationContext)

Processes a Property Path.

Declaration

public override BaseMultiset ProcessPropertyPath(PropertyPath path, SparqlEvaluationContext context)

Parameters

Type	Name	Description
PropertyPath	path	Path.
SparqlEvaluationContext	context	SPARQL Evaluation Context.

Returns

Type	Description
BaseMultiset

Overrides

LeviathanQueryProcessor.ProcessPropertyPath(PropertyPath, SparqlEvaluationContext)

ProcessReduced(Reduced, SparqlEvaluationContext)

Processes a Reduced modifier.

Declaration

public override BaseMultiset ProcessReduced(Reduced reduced, SparqlEvaluationContext context)

Parameters

Type	Name	Description
Reduced	reduced	Reduced modifier.
SparqlEvaluationContext	context	SPARQL Evaluation Context.

Returns

Type	Description
BaseMultiset

Overrides

LeviathanQueryProcessor.ProcessReduced(Reduced, SparqlEvaluationContext)

ProcessSelect(Select, SparqlEvaluationContext)

Processes a Select.

Declaration

public override BaseMultiset ProcessSelect(Select select, SparqlEvaluationContext context)

Parameters

Type	Name	Description
Select	select	Select.
SparqlEvaluationContext	context	SPARQL Evaluation Context.

Returns

Type	Description
BaseMultiset

Overrides

LeviathanQueryProcessor.ProcessSelect(Select, SparqlEvaluationContext)

ProcessSelectDistinctGraphs(SelectDistinctGraphs, SparqlEvaluationContext)

Processes a Select Distinct Graphs.

Declaration

public override BaseMultiset ProcessSelectDistinctGraphs(SelectDistinctGraphs selDistGraphs, SparqlEvaluationContext context)

Parameters

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

Returns

Type	Description
BaseMultiset

Overrides

LeviathanQueryProcessor.ProcessSelectDistinctGraphs(SelectDistinctGraphs, SparqlEvaluationContext)

ProcessService(Service, SparqlEvaluationContext)

Processes a Service.

Declaration

public override BaseMultiset ProcessService(Service service, SparqlEvaluationContext context)

Parameters

Type	Name	Description
Service	service	Service.
SparqlEvaluationContext	context	SPARQL Evaluation Context.

Returns

Type	Description
BaseMultiset

Overrides

LeviathanQueryProcessor.ProcessService(Service, SparqlEvaluationContext)

ProcessSlice(Slice, SparqlEvaluationContext)

Processes a Slice modifier.

Declaration

public override BaseMultiset ProcessSlice(Slice slice, SparqlEvaluationContext context)

Parameters

Type	Name	Description
Slice	slice	Slice modifier.
SparqlEvaluationContext	context	SPARQL Evaluation Context.

Returns

Type	Description
BaseMultiset

Overrides

LeviathanQueryProcessor.ProcessSlice(Slice, SparqlEvaluationContext)

ProcessSubQuery(SubQuery, SparqlEvaluationContext)

Processes a Subquery.

Declaration

public override BaseMultiset ProcessSubQuery(SubQuery subquery, SparqlEvaluationContext context)

Parameters

Type	Name	Description
SubQuery	subquery	Subquery.
SparqlEvaluationContext	context	SPARQL Evaluation Context.

Returns

Type	Description
BaseMultiset

Overrides

LeviathanQueryProcessor.ProcessSubQuery(SubQuery, SparqlEvaluationContext)

ProcessUnion(IUnion, SparqlEvaluationContext)

Processes a Union.

Declaration

public override BaseMultiset ProcessUnion(IUnion union, SparqlEvaluationContext context)

Parameters

Type	Name	Description
IUnion	union	Union.
SparqlEvaluationContext	context	SPARQL Evaluation Context.

Returns

Type	Description
BaseMultiset

Overrides

LeviathanQueryProcessor.ProcessUnion(IUnion, SparqlEvaluationContext)

ProcessUnknownOperator(ISparqlAlgebra, SparqlEvaluationContext)

Processes a Unknown Operator.

Declaration

public override BaseMultiset ProcessUnknownOperator(ISparqlAlgebra algebra, SparqlEvaluationContext context)

Parameters

Type	Name	Description
ISparqlAlgebra	algebra	Unknown Operator.
SparqlEvaluationContext	context	SPARQL Evaluation Context.

Returns

Type	Description
BaseMultiset

Overrides

LeviathanQueryProcessor.ProcessUnknownOperator(ISparqlAlgebra, SparqlEvaluationContext)

ProcessZeroLengthPath(ZeroLengthPath, SparqlEvaluationContext)

Processes a Zero Length Path.

Declaration

public override BaseMultiset ProcessZeroLengthPath(ZeroLengthPath path, SparqlEvaluationContext context)

Parameters

Type	Name	Description
ZeroLengthPath	path	Path.
SparqlEvaluationContext	context	SPARQL Evaluation Context.

Returns

Type	Description
BaseMultiset

Overrides

LeviathanQueryProcessor.ProcessZeroLengthPath(ZeroLengthPath, SparqlEvaluationContext)

ProcessZeroOrMorePath(ZeroOrMorePath, SparqlEvaluationContext)

Processes a Zero or More Path.

Declaration

public override BaseMultiset ProcessZeroOrMorePath(ZeroOrMorePath zeroOrMorePath, SparqlEvaluationContext context)

Parameters

Type	Name	Description
ZeroOrMorePath	zeroOrMorePath	Path.
SparqlEvaluationContext	context	SPARQL Evaluation Context.

Returns

Type	Description
BaseMultiset

Overrides

LeviathanQueryProcessor.ProcessZeroOrMorePath(ZeroOrMorePath, SparqlEvaluationContext)

Implements

ISparqlQueryProcessor

ISparqlQueryAlgebraProcessor<TResult, TContext>

Extension Methods

Extensions.ToSafeString(object)

Extensions.AsEnumerable<T>(T)