Package org.apache.jena.sparql.engine

Interface QueryIterator

All Superinterfaces:

org.apache.jena.atlas.lib.Closeable, java.util.Iterator<Binding>, org.apache.jena.atlas.io.Printable, PrintSerializable

All Known Implementing Classes:

AbstractIterHashJoin, CSVInputIterator, JSONInputIterator, QueryIter, QueryIter1, QueryIter2, QueryIter2LoopOnLeft, QueryIterAbortable, QueryIterAddTripleTerm, QueryIterAssign, QueryIterAssignVarValue, QueryIteratorBase, QueryIteratorCaching, QueryIteratorCheck, QueryIteratorCloseable, QueryIteratorLogging, QueryIteratorMapped, QueryIteratorResultSet, QueryIteratorTiming, QueryIteratorWrapper, QueryIterBlockTriples, QueryIterBlockTriplesStar, QueryIterCommonParent, QueryIterConcat, QueryIterConvert, QueryIterDefaulting, QueryIterDiff, QueryIterDistinct, QueryIterDistinctMem, QueryIterDistinctReduced, QueryIterDistinguishedVars, QueryIterExtendByVar, QueryIterFilterExpr, QueryIterGraph, QueryIterGroup, QueryIterHashJoin, QueryIterHashLeftJoin_Left, QueryIterHashLeftJoin_Right, QueryIterMinus, QueryIterNestedLoopJoin, QueryIterNestedLoopLeftJoin, QueryIterNullIterator, QueryIterOptionalIndex, QueryIterPath, QueryIterPeek, QueryIterPlainWrapper, QueryIterProcedure, QueryIterProcessBinding, QueryIterProject, QueryIterProjectMerge, QueryIterReduced, QueryIterRepeatApply, QueryIterRoot, QueryIterService, QueryIterSingleton, QueryIterSlice, QueryIterSort, QueryIterSub, QueryIterTopN, QueryIterTracked, QueryIterTriplePattern, QueryIterUnion, QueryIterYieldN

public interface QueryIterator
extends org.apache.jena.atlas.lib.Closeable, java.util.Iterator<Binding>, PrintSerializable

Root of query iterators in ARQ.

Method Summary

Modifier and Type	Method	Description
void	cancel()	Cancels the query as soon as is possible for the given iterator
default boolean	isJoinIdentity()
Binding	nextBinding()	Get next binding

Methods inherited from interface org.apache.jena.atlas.lib.Closeable

close

Methods inherited from interface java.util.Iterator

forEachRemaining, hasNext, next, remove

Methods inherited from interface org.apache.jena.atlas.io.Printable

output

Methods inherited from interface org.apache.jena.sparql.util.PrintSerializable

output, toString

Method Detail

nextBinding

Binding nextBinding()

Get next binding

cancel

void cancel()

Cancels the query as soon as is possible for the given iterator

isJoinIdentity

default boolean isJoinIdentity()