Uses of Class
org.apache.jena.sparql.engine.ExecutionContext

Packages that use ExecutionContext

Package	Description
org.apache.jena.sparql.algebra
org.apache.jena.sparql.algebra.op
org.apache.jena.sparql.algebra.optimize
org.apache.jena.sparql.algebra.table
org.apache.jena.sparql.engine
org.apache.jena.sparql.engine.binding
org.apache.jena.sparql.engine.iterator
org.apache.jena.sparql.engine.join
org.apache.jena.sparql.engine.main
org.apache.jena.sparql.engine.main.iterator
org.apache.jena.sparql.engine.main.solver
org.apache.jena.sparql.engine.ref
org.apache.jena.sparql.expr
org.apache.jena.sparql.function
org.apache.jena.sparql.path
org.apache.jena.sparql.pfunction
org.apache.jena.sparql.pfunction.library
org.apache.jena.sparql.procedure
org.apache.jena.sparql.procedure.library
org.apache.jena.sparql.util

Uses of ExecutionContext in org.apache.jena.sparql.algebra

Methods in org.apache.jena.sparql.algebra with parameters of type ExecutionContext

Modifier and Type	Method	Description
QueryIterator	Table.iterator(ExecutionContext execCxt)

Uses of ExecutionContext in org.apache.jena.sparql.algebra.op

Methods in org.apache.jena.sparql.algebra.op with parameters of type ExecutionContext

Modifier and Type	Method	Description
abstract QueryIterator	OpExt.eval(QueryIterator input, ExecutionContext execCxt)	Evaluate the op, given a stream of bindings as input Throw UnsupportedOperationException if this OpExt is not executeable.

Uses of ExecutionContext in org.apache.jena.sparql.algebra.optimize

Methods in org.apache.jena.sparql.algebra.optimize with parameters of type ExecutionContext

Modifier and Type	Method	Description
static Op	Optimize.optimize(Op op, ExecutionContext execCxt)

Uses of ExecutionContext in org.apache.jena.sparql.algebra.table

Methods in org.apache.jena.sparql.algebra.table with parameters of type ExecutionContext

Modifier and Type	Method	Description
QueryIterator	Table1.iterator(ExecutionContext execCxt)
QueryIterator	TableEmpty.iterator(ExecutionContext execCxt)
QueryIterator	TableN.iterator(ExecutionContext execCxt)
QueryIterator	TableUnit.iterator(ExecutionContext execCxt)

Uses of ExecutionContext in org.apache.jena.sparql.engine

Constructors in org.apache.jena.sparql.engine with parameters of type ExecutionContext

Constructor	Description
ExecutionContext(ExecutionContext other)	Clone
ExecutionContext(ExecutionContext other, Graph activeGraph)	Clone and change active graph - shares tracking

Uses of ExecutionContext in org.apache.jena.sparql.engine.binding

Constructors in org.apache.jena.sparql.engine.binding with parameters of type ExecutionContext

Constructor	Description
BindingComparator(java.util.List<SortCondition> conditions, ExecutionContext execCxt)

Uses of ExecutionContext in org.apache.jena.sparql.engine.iterator

Methods in org.apache.jena.sparql.engine.iterator that return ExecutionContext

Modifier and Type	Method	Description
ExecutionContext	QueryIter.getExecContext()

Methods in org.apache.jena.sparql.engine.iterator with parameters of type ExecutionContext

Modifier and Type	Method	Description
static QueryIteratorCheck	QueryIteratorCheck.check(QueryIterator qIter, ExecutionContext execCxt)
static void	QueryIteratorCheck.checkForOpenIterators(ExecutionContext execContext)
static QueryIterator	QueryIterBlockTriples.create(QueryIterator input, BasicPattern pattern, ExecutionContext execCxt)	Deprecated.
static QueryIterator	QueryIterBlockTriplesStar.create(QueryIterator input, BasicPattern pattern, ExecutionContext execCxt)	Deprecated.
static QueryIterator	QueryIterMinus.create(QueryIterator left, QueryIterator right, java.util.Set<Var> commonVars, ExecutionContext qCxt)
static QueryIterator	QueryIterNullIterator.create(ExecutionContext qCxt)
static QueryIterPeek	QueryIterPeek.create(QueryIterator iterator, ExecutionContext cxt)
static QueryIterator	QueryIterPlainWrapper.create(java.util.Iterator<Binding> iter, ExecutionContext execCxt)
static QueryIterator	QueryIterRoot.create(Binding binding, ExecutionContext execCxt)	Create a root with an initial binding
static QueryIterator	QueryIterRoot.create(ExecutionContext execCxt)	Create a root
static QueryIterSingleton	QueryIterSingleton.create(Binding parent, Var var, Node value, ExecutionContext execCxt)
static QueryIterSingleton	QueryIterSingleton.create(Binding binding, ExecutionContext execCxt)
static QueryIter	QueryIter.makeTracked(QueryIterator qIter, ExecutionContext execCxt)
static QueryIter	QueryIter.materialize(QueryIterator qIter, ExecutionContext execCxt)

Constructors in org.apache.jena.sparql.engine.iterator with parameters of type ExecutionContext

Constructor	Description
QueryIter(ExecutionContext execCxt)
QueryIter1(QueryIterator input, ExecutionContext execCxt)
QueryIter2(QueryIterator left, QueryIterator right, ExecutionContext execCxt)
QueryIter2LoopOnLeft(QueryIterator left, QueryIterator right, ExecutionContext qCxt)
QueryIterAbortable(java.util.Iterator<Binding> iterBinding, java.util.List<Abortable> killList, QueryIterator originalInput, ExecutionContext execCxt)
QueryIterAddTripleTerm(QueryIterator chain, Var var, Triple triple, ExecutionContext execContext)
QueryIterAssign(QueryIterator input, VarExprList exprs, ExecutionContext qCxt, boolean mustBeNewVar)
QueryIterAssign(QueryIterator input, Var var, Expr expr, ExecutionContext qCxt)
QueryIterAssignVarValue(QueryIterator input, Var var, Node node, ExecutionContext qCxt)
QueryIterAssignVarValue(QueryIterator input, Var var, Node node, ExecutionContext qCxt, boolean mustBeNewVar)
QueryIterCommonParent(QueryIterator input, Binding binding, ExecutionContext execCxt)
QueryIterConcat(ExecutionContext context)
QueryIterConvert(QueryIterator iter, QueryIterConvert.Converter c, ExecutionContext context)
QueryIterDefaulting(QueryIterator cIter, Binding _defaultObject, ExecutionContext qCxt)
QueryIterDiff(QueryIterator left, QueryIterator right, ExecutionContext qCxt)
QueryIterDistinct(QueryIterator qIter, java.util.List<SortCondition> preserveOrder, ExecutionContext execCxt)
QueryIterDistinctMem(QueryIterator iter, ExecutionContext context)
QueryIterDistinctReduced(QueryIterator iter, ExecutionContext context)
QueryIterDistinguishedVars(QueryIterator iter, ExecutionContext context)
QueryIterExtendByVar(Binding binding, Var var, java.util.Iterator<Node> members, ExecutionContext execCxt)
QueryIterFilterExpr(QueryIterator input, Expr expr, ExecutionContext context)
QueryIterGroup(QueryIterator qIter, VarExprList groupVars, java.util.List<ExprAggregator> aggregators, ExecutionContext execCxt)
QueryIterNullIterator(ExecutionContext qCxt)
QueryIterPath(TriplePath triplePath, QueryIterator input, ExecutionContext context)
QueryIterProcedure(QueryIterator input, Procedure proc, ExecutionContext execCxt)
QueryIterProcessBinding(QueryIterator qIter, ExecutionContext context)
QueryIterProject(QueryIterator input, java.util.List<Var> vars, ExecutionContext qCxt)
QueryIterProjectMerge(OpProject opProject, QueryIterator input, OpExecutor engine, ExecutionContext execCxt)
QueryIterReduced(QueryIterator iter, ExecutionContext context)
QueryIterRepeatApply(QueryIterator input, ExecutionContext context)
QueryIterSlice(QueryIterator cIter, long startPosition, long numItems, ExecutionContext context)	Create an iterator that limits the number of returns of another CloseableIterator.
QueryIterSort(QueryIterator qIter, java.util.Comparator<Binding> comparator, ExecutionContext context)
QueryIterSort(QueryIterator qIter, java.util.List<SortCondition> conditions, ExecutionContext context)
QueryIterSub(QueryIterator input, ExecutionContext execCxt)
QueryIterTopN(QueryIterator qIter, java.util.Comparator<Binding> comparator, long numItems, boolean distinct, ExecutionContext context)
QueryIterTopN(QueryIterator qIter, java.util.List<SortCondition> conditions, long numItems, boolean distinct, ExecutionContext context)
QueryIterTriplePattern(QueryIterator input, Triple pattern, ExecutionContext cxt)	Deprecated.
QueryIterYieldN(int num, Binding b, ExecutionContext context)

Uses of ExecutionContext in org.apache.jena.sparql.engine.join

Methods in org.apache.jena.sparql.engine.join with parameters of type ExecutionContext

Modifier and Type	Method	Description
static QueryIterator	QueryIterHashJoin.create(JoinKey joinKey, QueryIterator left, QueryIterator right, ExecutionContext execCxt)	Create a hashjoin QueryIterator.
static QueryIterator	QueryIterHashJoin.create(QueryIterator left, QueryIterator right, ExecutionContext execCxt)	Create a hashjoin QueryIterator.
static QueryIterator	QueryIterHashLeftJoin_Left.create(JoinKey joinKey, QueryIterator left, QueryIterator right, ExprList conditions, ExecutionContext execCxt)	Create a hashjoin QueryIterator.
static QueryIterator	QueryIterHashLeftJoin_Left.create(QueryIterator left, QueryIterator right, ExprList conditions, ExecutionContext execCxt)	Create a hashjoin QueryIterator.
static QueryIterator	QueryIterHashLeftJoin_Right.create(JoinKey joinKey, QueryIterator left, QueryIterator right, ExprList conditions, ExecutionContext execCxt)	Create a hashjoin QueryIterator.
static QueryIterator	QueryIterHashLeftJoin_Right.create(QueryIterator left, QueryIterator right, ExprList conditions, ExecutionContext execCxt)	Create a hashjoin QueryIterator.
static QueryIterator	Join.hashJoin(JoinKey joinKey, QueryIterator left, QueryIterator right, ExecutionContext execCxt)	Evaluate using a hash join.
static QueryIterator	Join.hashJoin(QueryIterator left, QueryIterator right, ExecutionContext execCxt)	Evaluate using a hash join.
static QueryIterator	Join.hashLeftJoin(JoinKey joinKey, QueryIterator left, QueryIterator right, ExprList conditions, ExecutionContext execCxt)	Left outer join by using hash join.
static QueryIterator	Join.hashLeftJoin(QueryIterator left, QueryIterator right, ExprList conditions, ExecutionContext execCxt)	Left outer join by using hash join.
static QueryIterator	Join.join(QueryIterator left, QueryIterator right, ExecutionContext execCxt)	Standard entry point to a join of two streams.
static QueryIterator	Join.leftJoin(QueryIterator left, QueryIterator right, ExprList conditions, ExecutionContext execCxt)	Standard entry point to a left join of two streams.
static QueryIterator	Join.nestedLoopJoin(QueryIterator left, QueryIterator right, ExecutionContext execCxt)	Inner loop join.
static QueryIterator	Join.nestedLoopJoinBasic(QueryIterator left, QueryIterator right, ExecutionContext execCxt)	Very simple, materializing version - useful for debugging.
static QueryIterator	Join.nestedLoopLeftJoin(QueryIterator left, QueryIterator right, ExprList conditions, ExecutionContext execCxt)	Left loop join.
static QueryIterator	Join.nestedLoopLeftJoinBasic(QueryIterator left, QueryIterator right, ExprList conditions, ExecutionContext execCxt)	Very simple, materializing version for leftjoin - useful for debugging.

Constructors in org.apache.jena.sparql.engine.join with parameters of type ExecutionContext

Constructor	Description
QueryIterNestedLoopJoin(QueryIterator left, QueryIterator right, ExecutionContext cxt)
QueryIterNestedLoopLeftJoin(QueryIterator left, QueryIterator right, ExprList exprList, ExecutionContext cxt)

Uses of ExecutionContext in org.apache.jena.sparql.engine.main

Methods in org.apache.jena.sparql.engine.main with parameters of type ExecutionContext

Modifier and Type	Method	Description
OpExecutor	OpExecutorFactory.create(ExecutionContext execCxt)
static QueryIterator	OpExecutor.createRootQueryIterator(ExecutionContext execCxt)
static QueryIterator	QC.execute(Op op, Binding binding, ExecutionContext execCxt)
static QueryIterator	QC.execute(Op op, QueryIterator qIter, ExecutionContext execCxt)
static QueryIterator	QC.execute(QueryIterator input, Triple pattern, ExecutionContext execCxt)	Execute a triple pattern - top level variables only (no variables in RDF-sr embedded triples).
QueryIterator	StageGenerator.execute(BasicPattern pattern, QueryIterator input, ExecutionContext execCxt)
QueryIterator	StageGeneratorGeneric.execute(BasicPattern pattern, QueryIterator input, ExecutionContext execCxt)
static QueryIterator	QC.executeDirect(BasicPattern pattern, QueryIterator input, ExecutionContext execCxt)	Execute a BGP directly - no optimization.

Uses of ExecutionContext in org.apache.jena.sparql.engine.main.iterator

Constructors in org.apache.jena.sparql.engine.main.iterator with parameters of type ExecutionContext

Constructor	Description
QueryIterGraph(QueryIterator input, OpGraph opGraph, ExecutionContext context)
QueryIterOptionalIndex(QueryIterator input, Op op, ExecutionContext context)
QueryIterService(QueryIterator input, OpService opService, ExecutionContext context)
QueryIterUnion(QueryIterator input, java.util.List<Op> subOps, ExecutionContext context)

Uses of ExecutionContext in org.apache.jena.sparql.engine.main.solver

Methods in org.apache.jena.sparql.engine.main.solver with parameters of type ExecutionContext

Modifier and Type	Method	Description
static java.util.Iterator<Binding>	StageMatchTriple.accessTriple(java.util.Iterator<Binding> input, Graph graph, Triple pattern, java.util.function.Predicate<Triple> filter, ExecutionContext execCxt)
static QueryIterator	PatternMatchData.execute(Graph graph, BasicPattern pattern, QueryIterator input, java.util.function.Predicate<Triple> filter, ExecutionContext execCxt)	Non-reordering execution of a triple pattern (basic graph pattern), given an iterator of bindings as input.
static QueryIterator	PatternMatchData.execute(DatasetGraph dsg, Node graphNode, BasicPattern pattern, QueryIterator input, java.util.function.Predicate<Quad> filter, ExecutionContext execCxt)	Non-reordering execution of a quad pattern, a graph name and a basic graph pattern, given an iterator of bindings as input.
static java.util.Iterator<Binding>	SolverRX4.rdfStarQuad(java.util.Iterator<Binding> chain, Node graphName, Triple pattern, ExecutionContext execCxt)
static java.util.Iterator<Binding>	SolverRX4.rdfStarQuad(java.util.Iterator<Binding> chain, Quad pattern, ExecutionContext execCxt)
static java.util.Iterator<Binding>	SolverRX3.rdfStarTriple(java.util.Iterator<Binding> chain, Triple tPattern, ExecutionContext execCxt)

Constructors in org.apache.jena.sparql.engine.main.solver with parameters of type ExecutionContext

Constructor	Description
OpExecutorQuads(ExecutionContext execCxt)

Uses of ExecutionContext in org.apache.jena.sparql.engine.ref

Methods in org.apache.jena.sparql.engine.ref that return ExecutionContext

Modifier and Type	Method	Description
ExecutionContext	Evaluator.getExecContext()
ExecutionContext	EvaluatorSimple.getExecContext()

Methods in org.apache.jena.sparql.engine.ref with parameters of type ExecutionContext

Modifier and Type	Method	Description
static Evaluator	EvaluatorFactory.create(ExecutionContext context)
static QueryIterator	TableJoin.join(QueryIterator left, Table right, ExprList condition, ExecutionContext execCxt)
static QueryIterator	TableJoin.joinWorker(QueryIterator left, Table right, JoinType joinType, ExprList conditions, ExecutionContext execCxt)
static QueryIterator	TableJoin.leftJoin(QueryIterator left, Table right, ExprList condition, ExecutionContext execCxt)

Constructors in org.apache.jena.sparql.engine.ref with parameters of type ExecutionContext

Constructor	Description
EvaluatorSimple(ExecutionContext context)

Uses of ExecutionContext in org.apache.jena.sparql.expr

Methods in org.apache.jena.sparql.expr with parameters of type ExecutionContext

Modifier and Type	Method	Description
Node	NodeValue.evalNode(Binding binding, ExecutionContext execCxt)
boolean	ExprList.isSatisfied(Binding binding, ExecutionContext execCxt)

Uses of ExecutionContext in org.apache.jena.sparql.function

Constructors in org.apache.jena.sparql.function with parameters of type ExecutionContext

Constructor	Description
FunctionEnvBase(ExecutionContext execCxt)

Uses of ExecutionContext in org.apache.jena.sparql.path

Methods in org.apache.jena.sparql.path with parameters of type ExecutionContext

Modifier and Type	Method	Description
QueryIterator	PathPropertyFunction.execEvaluated(Binding binding, Node subject, Node predicate, Node object, ExecutionContext execCxt)
static QueryIterator	PathLib.execTriplePath(Binding binding, Node s, Path path, Node o, ExecutionContext execCxt)
static QueryIterator	PathLib.execTriplePath(Binding binding, TriplePath triplePath, ExecutionContext execCxt)

Uses of ExecutionContext in org.apache.jena.sparql.pfunction

Methods in org.apache.jena.sparql.pfunction with parameters of type ExecutionContext

Modifier and Type	Method	Description
void	ProcedurePF.build(Node procId, ExprList args, ExecutionContext execCxt)
void	PropertyFunction.build(PropFuncArg argSubject, Node predicate, PropFuncArg argObject, ExecutionContext execCxt)	Called during query plan construction immediately after the construction of the property function instance.
void	PropertyFunctionBase.build(PropFuncArg argSubject, Node predicate, PropFuncArg argObject, ExecutionContext execCxt)
QueryIterator	PropertyFunction.exec(QueryIterator input, PropFuncArg argSubject, Node predicate, PropFuncArg argObject, ExecutionContext execCxt)	Create an iterator of bindings for the given inputs
abstract QueryIterator	PropertyFunctionBase.exec(Binding binding, PropFuncArg argSubject, Node predicate, PropFuncArg argObject, ExecutionContext execCxt)
QueryIterator	PropertyFunctionBase.exec(QueryIterator input, PropFuncArg argSubject, Node predicate, PropFuncArg argObject, ExecutionContext execCxt)
QueryIterator	PropertyFunctionEval.exec(Binding binding, PropFuncArg argSubject, Node predicate, PropFuncArg argObject, ExecutionContext execCxt)
QueryIterator	PFuncAssignToSubject.execEvaluated(Binding binding, Node subject, Node predicate, Node object, ExecutionContext execCxt)
abstract QueryIterator	PFuncListAndList.execEvaluated(Binding binding, PropFuncArg subject, Node predicate, PropFuncArg object, ExecutionContext execCxt)
abstract QueryIterator	PFuncListAndSimple.execEvaluated(Binding binding, PropFuncArg subject, Node predicate, Node object, ExecutionContext execCxt)
QueryIterator	PFuncListAndSimple.execEvaluated(Binding binding, PropFuncArg argSubject, Node predicate, PropFuncArg argObject, ExecutionContext execCxt)
abstract QueryIterator	PFuncSimple.execEvaluated(Binding binding, Node subject, Node predicate, Node object, ExecutionContext execCxt)
QueryIterator	PFuncSimple.execEvaluated(Binding binding, PropFuncArg argSubject, Node predicate, PropFuncArg argObject, ExecutionContext execCxt)
abstract QueryIterator	PFuncSimpleAndList.execEvaluated(Binding binding, Node subject, Node predicate, PropFuncArg object, ExecutionContext execCxt)
QueryIterator	PFuncSimpleAndList.execEvaluated(Binding binding, PropFuncArg argSubject, Node predicate, PropFuncArg argObject, ExecutionContext execCxt)
abstract QueryIterator	PropertyFunctionEval.execEvaluated(Binding binding, PropFuncArg argSubject, Node predicate, PropFuncArg argObject, ExecutionContext execCxt)
QueryIterator	ProcedurePF.proc(QueryIterator input, ExecutionContext execCxt)

Uses of ExecutionContext in org.apache.jena.sparql.pfunction.library

Methods in org.apache.jena.sparql.pfunction.library with parameters of type ExecutionContext

Modifier and Type	Method	Description
void	listMember.build(PropFuncArg argSubject, Node predicate, PropFuncArg argObject, ExecutionContext execCxt)
void	splitIRI.build(PropFuncArg argSubject, Node predicate, PropFuncArg argObject, ExecutionContext execCxt)
void	str.build(PropFuncArg argSubject, Node predicate, PropFuncArg argObject, ExecutionContext execCxt)
void	strSplit.build(PropFuncArg argSubject, Node predicate, PropFuncArg argObject, ExecutionContext execCxt)
QueryIterator	assign.execEvaluated(Binding binding, Node subject, Node predicate, Node object, ExecutionContext execCxt)
QueryIterator	blankNode.execEvaluated(Binding binding, Node subject, Node predicate, Node object, ExecutionContext execCxt)
QueryIterator	concat.execEvaluated(Binding binding, Node subject, Node predicate, PropFuncArg object, ExecutionContext execCxt)
QueryIterator	container.execEvaluated(Binding binding, Node containerNode, Node predicate, Node member, ExecutionContext execCxt)
QueryIterator	ListBase.execEvaluated(Binding binding, PropFuncArg argSubject, Node predicate, PropFuncArg argObject, ExecutionContext execCxt)	If the subject is a list (well, at least not an unbound variable), dispatch to execOneList else dispatch to one of object a var, a list or a node.
QueryIterator	splitIRI.execEvaluated(Binding binding, PropFuncArg argSubject, Node predicate, PropFuncArg argObject, ExecutionContext execCxt)
QueryIterator	str.execEvaluated(Binding binding, Node subject, Node predicate, Node object, ExecutionContext execCxt)
QueryIterator	strSplit.execEvaluated(Binding binding, Node subject, Node predicate, PropFuncArg object, ExecutionContext execCxt)
QueryIterator	version.execEvaluated(Binding binding, PropFuncArg subject, Node predicate, PropFuncArg object, ExecutionContext execCxt)
QueryIterator	versionARQ.execEvaluated(Binding binding, PropFuncArg subject, Node predicate, PropFuncArg object, ExecutionContext execCxt)
QueryIterator	listLength.execOneList(Binding binding, Node listNode, Node predicate, Node length, ExecutionContext execCxt)

Uses of ExecutionContext in org.apache.jena.sparql.procedure

Methods in org.apache.jena.sparql.procedure with parameters of type ExecutionContext

Modifier and Type	Method	Description
void	Procedure.build(Node procId, ExprList args, ExecutionContext execCxt)	Called during query plan construction immediately after the construction of the property function instance.
void	ProcedureBase.build(Node procId, ExprList args, ExecutionContext execCxt)
static Procedure	ProcEval.build(Node procId, ExprList args, ExecutionContext execCxt)
static Procedure	ProcEval.build(Node procId, PropFuncArg subjArg, PropFuncArg objArg, ExecutionContext execCxt)
static Procedure	ProcEval.build(OpProcedure opProc, ExecutionContext execCxt)
static QueryIterator	ProcEval.eval(QueryIterator queryIterator, Procedure proc, ExecutionContext execCxt)	Evaluate a procedure
abstract QueryIterator	ProcedureBase.exec(Binding binding, Node name, ExprList args, ExecutionContext execCxt)
QueryIterator	ProcedureEval.exec(Binding binding, Node name, ExprList args, ExecutionContext execCxt)
abstract QueryIterator	ProcedureEval.execEval(Binding binding, ExprList args, ExecutionContext execCxt)
QueryIterator	Procedure.proc(QueryIterator input, ExecutionContext execCxt)	Call the procedure, with an input iterator of bindings.
QueryIterator	ProcedureBase.proc(QueryIterator input, ExecutionContext execCxt)

Uses of ExecutionContext in org.apache.jena.sparql.procedure.library

Methods in org.apache.jena.sparql.procedure.library with parameters of type ExecutionContext

Modifier and Type	Method	Description
QueryIterator	debug.execEval(Binding binding, ExprList args, ExecutionContext execCxt)

Uses of ExecutionContext in org.apache.jena.sparql.util

Methods in org.apache.jena.sparql.util with parameters of type ExecutionContext

Modifier and Type	Method	Description
static QueryIterator	IterLib.noResults(ExecutionContext execCxt)
static QueryIterator	IterLib.oneResult(Binding parent, Var var, Node value, ExecutionContext execCxt)
static QueryIterator	IterLib.result(Binding binding, ExecutionContext execCxt)