de.lmu.ifi.dbs.elki.utilities.iterator
Class MergedIterator<E>

java.lang.Object
  de.lmu.ifi.dbs.elki.utilities.iterator.MergedIterator<E>

Type Parameters:

E - Entry type

All Implemented Interfaces:

Iterator<E>

public class MergedIterator<E>
extends Object
implements Iterator<E>

Iterator that joins multiple existing iterators into one.

Field Summary

(package private) Iterator<E>	current The iterator we are currently processing
(package private) Iterator<Iterator<E>>	iterators All the iterators we process
(package private) Iterator<E>	last The last iterator we returned an object for, for remove()

Constructor Summary

MergedIterator(Collection<Iterator<E>> iterators)
Auxillary constructor with Collections

MergedIterator(Iterator<E>... iterators)
Auxillary constructor with arrays

MergedIterator(Iterator<Iterator<E>> iterators)
Main constructor.

Method Summary

boolean	hasNext()
E	next()
void	remove()

Methods inherited from class java.lang.Object

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

Field Detail

iterators

final Iterator<Iterator<E>> iterators

All the iterators we process

current

Iterator<E> current

The iterator we are currently processing

last

Iterator<E> last

The last iterator we returned an object for, for remove()

Constructor Detail

MergedIterator

public MergedIterator(Iterator<Iterator<E>> iterators)

Main constructor.

Parameters:

iterators - Iterators

MergedIterator

public MergedIterator(Collection<Iterator<E>> iterators)

Auxillary constructor with Collections

Parameters:

iterators - Iterators

MergedIterator

public MergedIterator(Iterator<E>... iterators)

Auxillary constructor with arrays

Parameters:

iterators - Iterators

Method Detail

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<E>

next

public E next()

Specified by:

next in interface Iterator<E>

remove

public void remove()

Specified by:

remove in interface Iterator<E>