org.neo4j.helpers.collection
Class CombiningIterator<T>

java.lang.Object
  org.neo4j.helpers.collection.PrefetchingIterator<T>
      org.neo4j.helpers.collection.CombiningIterator<T>

Type Parameters:

T - the type of items in the iteration.

All Implemented Interfaces:

Iterator<T>

public class CombiningIterator<T>
extends PrefetchingIterator<T>

Combining one or more Iterators, making them look like they were one big iterator. All iteration/combining is done lazily.

Constructor Summary

CombiningIterator(Iterable<? extends Iterator<T>> iterators)

CombiningIterator(T first, Iterator<T> rest)

Method Summary

protected Iterator<T>	currentIterator()
protected T	fetchNextOrNull()

Methods inherited from class org.neo4j.helpers.collection.PrefetchingIterator

getPrefetchedNextOrNull, hasNext, next, remove, setPrefetchedNext

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CombiningIterator

public CombiningIterator(Iterable<? extends Iterator<T>> iterators)

CombiningIterator

public CombiningIterator(T first,
                         Iterator<T> rest)

Method Detail

fetchNextOrNull

protected T fetchNextOrNull()

Specified by:

fetchNextOrNull in class PrefetchingIterator<T>

currentIterator

protected Iterator<T> currentIterator()