de.rwth.utils
Class IteratorSequence

java.lang.Object
  |
  +--de.rwth.utils.IteratorSequence

All Implemented Interfaces:

java.util.Iterator

public class IteratorSequence

extends java.lang.Object

implements java.util.Iterator

An iterator which goes over an array of base iterators in sequence.

Version:

$Id: IteratorSequence.java,v 1.2 2002/09/17 06:53:53 mohnen Exp $

Author:

Markus Mohnen

Field Summary

protected int	count The current index in iterators
protected java.util.Iterator[]	iterators The array of base iterators.

Constructor Summary

IteratorSequence(java.util.Iterator[] iterators)
Creates a new IteratorSequence instance from an array of base iterators..

IteratorSequence(java.util.Iterator i1, java.util.Iterator i2)
Creates a new IteratorSequence instance from two base iterators.

Method Summary

boolean	hasNext()
static void	main(java.lang.String[] args) Mini test environment.
java.lang.Object	next()
protected void	proceedToNext() Advances count to the next base iterator which still has elements pending.
void	remove()

Methods inherited from class java.lang.Object

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

Field Detail

iterators

protected java.util.Iterator[] iterators

The array of base iterators.

count

protected int count

The current index in iterators

Constructor Detail

IteratorSequence

public IteratorSequence(java.util.Iterator[] iterators)

Creates a new IteratorSequence instance from an array of base iterators..

Parameters:

iterators - an Iterator[] value: The base iterators.

IteratorSequence

public IteratorSequence(java.util.Iterator i1,
                        java.util.Iterator i2)

Creates a new IteratorSequence instance from two base iterators.

Parameters:

i1 - an Iterator value: First base iterator.

i2 - an Iterator value: Second base iterator.

Method Detail

proceedToNext

protected void proceedToNext()

Advances count to the next base iterator which still has elements pending.

next

public java.lang.Object next()
                      throws java.util.NoSuchElementException

Specified by:

next in interface java.util.Iterator

hasNext

public boolean hasNext()

Specified by:

hasNext in interface java.util.Iterator

remove

public void remove()

Specified by:

remove in interface java.util.Iterator

main

public static void main(java.lang.String[] args)

Mini test environment.

Parameters:

args - a String[] value