Package org.apache.jena.sparql.engine.iterator

Class QueryIterPeek

java.lang.Object

org.apache.jena.sparql.util.PrintSerializableBase

org.apache.jena.sparql.engine.iterator.QueryIteratorBase

org.apache.jena.sparql.engine.iterator.QueryIter

org.apache.jena.sparql.engine.iterator.QueryIter1

org.apache.jena.sparql.engine.iterator.QueryIterPeek

All Implemented Interfaces:

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

public class QueryIterPeek
extends QueryIter1

Field Summary

Fields inherited from class org.apache.jena.sparql.engine.iterator.QueryIteratorBase

traceIterators

Method Summary

Modifier and Type	Method	Description
static QueryIterPeek	create(QueryIterator iterator, ExecutionContext cxt)
Binding	peek()	Returns the next binding without moving on.

Methods inherited from class org.apache.jena.sparql.engine.iterator.QueryIter1

output

Methods inherited from class org.apache.jena.sparql.engine.iterator.QueryIter

close, getExecContext, getIteratorNumber, makeTracked, map, materialize, materialize, output

Methods inherited from class org.apache.jena.sparql.engine.iterator.QueryIteratorBase

cancel, debug, hasNext, next, nextBinding, remove

Methods inherited from class org.apache.jena.sparql.util.PrintSerializableBase

toString, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Iterator

forEachRemaining

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

toString

Methods inherited from interface org.apache.jena.sparql.engine.QueryIterator

isJoinIdentity

Method Detail

create

public static QueryIterPeek create(QueryIterator iterator,
                                   ExecutionContext cxt)

peek

public Binding peek()

Returns the next binding without moving on. Returns "null" for no such element.