QueryIterPeek (Apache Jena ARQ)

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:: Iterator<Binding>, org.apache.jena.atlas.io.Printable, org.apache.jena.atlas.iterator.IteratorCloseable<Binding>, org.apache.jena.atlas.lib.Closeable, QueryIterator, PrintSerializable

public class QueryIterPeek extends QueryIter1

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, flatMap, getExecContext, getIteratorNumber, makeTracked, map, materialize, materialize, output

Methods inherited from class org.apache.jena.sparql.engine.iterator.QueryIteratorBase
cancel, 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 Details
- 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.