serp.util
Class MultiIterator

java.lang.Object
  |
  +--serp.util.MultiIterator

All Implemented Interfaces:

Iterator

public abstract class MultiIterator

extends Object

implements Iterator

Iterator type that can combine multiple iterators into one logical iterator.

The Jakarta project's Commons Collections module contains an IteratorChain that is similar to this iterator, but does not support lazy instantiation of iterators

Constructor Summary

MultiIterator()

Method Summary

boolean	hasNext()
protected abstract Iterator	newIterator(int index) Implement this method to return the iterator at the indexth position in the list of iterators to process.
Object	next()
void	remove()

Methods inherited from class java.lang.Object

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

Constructor Detail

MultiIterator

public MultiIterator()

Method Detail

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator

next

public Object next()

Specified by:

next in interface Iterator

remove

public void remove()

Specified by:

remove in interface Iterator

newIterator

protected abstract Iterator newIterator(int index)

Implement this method to return the iterator at the indexth position in the list of iterators to process. Indexing starts at 0 and will proceed upward linearly, never repeating the same index. Return null to indicate that there are no more iterators to process. You may return null to index 0, in which case this iterator will act like an iterator over an empty collection.