Uses of Class
com.hp.hpl.jena.sparql.engine.iterator.QueryIter

Packages that use QueryIter

Package	Description
com.hp.hpl.jena.sparql.engine.iterator
com.hp.hpl.jena.sparql.engine.main.iterator

Uses of QueryIter in com.hp.hpl.jena.sparql.engine.iterator

Subclasses of QueryIter in com.hp.hpl.jena.sparql.engine.iterator

Modifier and Type	Class and Description
class	QueryIter1 This class supports a QueryIter that takes one QueryIterator as input.
class	QueryIter2 This class marks a QueryIter that takes two QueryIterators as input.
class	QueryIter2LoopOnLeft Binary operation done by looping on the left, and materializing the right - this is not streamed on the right See also QueryIterRepeatApply
class	QueryIterAssign Extend each solution by a (var, expression)
class	QueryIterAssignVarValue Extend each solution by a (var, node) When used with mustBeNewVar=false, this is a join.
class	QueryIterBlockTriples
class	QueryIterCommonParent Yield new bindings, with a fixed parent, with values from an iterator.
class	QueryIterConcat A query iterator that joins two or more iterators into a single iterator.
class	QueryIterConvert Iterator over another QueryIterator, applying a converter function to each object that is returned by .next()
class	QueryIterDefaulting An iterator that returns at least one element from another iterator or a default value (once) if the wrapped iterator returns nothing.
class	QueryIterDiff Diff by materializing the RHS - this is not streamed on the right
class	QueryIterDistinct A QueryIterator that suppresses items already seen.
class	QueryIterDistinctMem Memory limited QueryIterDistinct
class	QueryIterDistinctReduced Implementation skeleton for DISTINCT and REDUCED.
class	QueryIterDistinguishedVars Filter bindings for distinguished variables only Currently unused.
class	QueryIterExtendByVar Yield new bindings, with a fixed parent, with values from an iterator.
class	QueryIterFilterExpr Filter a stream of bindings by a constraint.
class	QueryIterGroup
class	QueryIterMinus Minus by materializing the RHS - this is not streamed on the right
class	QueryIterNullIterator Closeable empty query iterator
class	QueryIterPath
class	QueryIterPeek
class	QueryIterPlainWrapper Turn an normal java.util.Iterator (of Bindings) into a QueryIterator
class	QueryIterProcedure QueryIterator for a procedure.
class	QueryIterProcessBinding An iterator that applying a condition.
class	QueryIterProject
class	QueryIterProject2
class	QueryIterReduced
class	QueryIterRepeatApply Repeatedly execute the subclass operation for each Binding in the input iterator.
class	QueryIterRoot
class	QueryIterSingleton A singleton iterator
class	QueryIterSlice Iterator until a limit is reached.
class	QueryIterSort Sort a query iterator.
class	QueryIterSub This class supports a QueryIter that uses a single sub iterator.
class	QueryIterTopN
class	QueryIterTracked Track a QueryIterator
class	QueryIterTriplePattern
class	QueryIterYieldN A query iterator that yields the same thing N times.

Methods in com.hp.hpl.jena.sparql.engine.iterator that return QueryIter

Modifier and Type	Method and Description
static QueryIter	QueryIter.makeTracked(QueryIterator qIter, ExecutionContext execCxt)
static QueryIter	QueryIter.materialize(QueryIterator qIter, ExecutionContext execCxt)

Uses of QueryIter in com.hp.hpl.jena.sparql.engine.main.iterator

Subclasses of QueryIter in com.hp.hpl.jena.sparql.engine.main.iterator

Modifier and Type	Class and Description
class	QueryIterGraph
class	QueryIterJoin Join by materializing the RHS - this is not streamed
class	QueryIterJoinBase Join or LeftJoin by calculating both sides, then doing the join It usually better to use substitute algorithm (not this QueryIterator in other words) as that is effectively indexing from one side into the other.
class	QueryIterLeftJoin Left join by materializing the RHS
class	QueryIterOptionalIndex
class	QueryIterService
class	QueryIterUnion Execute each sub stage against the input.