gausssoft.collections
Class FilterIterator

java.lang.Object
  |
  +--gausssoft.collections.FilterIterator

All Implemented Interfaces:

Iterator, Serializable

Direct Known Subclasses:

AltFilterIterator

public class FilterIterator

extends Object

implements Iterator, Serializable

The FilterIterator class contains another Iterator, which it uses as it's basic source of data, possibly transforming the data along the way or providing additional functionality.

Each method in this implementation calls the method with the same signature in the backing iterator.

This class can only be serialized if the backing iterator is serializable.

Author:

Allan Crooks

See Also:

Iterator, Serialized Form

Field Summary

protected Iterator

root The backing iterator.

Constructor Summary

FilterIterator(Iterator root)
Creates a new FilterIterator.

Method Summary

boolean	hasNext()
Object	next()
void	remove()

Methods inherited from class java.lang.Object

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

Field Detail

root

protected Iterator root

The backing iterator.

Constructor Detail

FilterIterator

public FilterIterator(Iterator root)

Creates a new FilterIterator.

Parameters:

root - The iterator to wrap this FilterIterator around.

Throws:

NullPointerException - iterator is null.

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