cfa.vo.iris.utils
Class AbstractIterator

java.lang.Object
  cfa.vo.iris.utils.AbstractIterator

All Implemented Interfaces:

Iterator

public abstract class AbstractIterator
extends Object
implements Iterator

Abstract class for wrapping iterators coming from other implementations. The reason of this class is to provide a convenient way of creating iterators that fire events when the remove() method is called. Extended classes only need to implement the fireEvent method according to their semantics and use cases.

Author:

olaurino

Constructor Summary

AbstractIterator(Iterator it)
This class delegates its methods to a wrapped iterator.

Method Summary

protected abstract void	fireEvent() When a client calls the remove() method this callback method is invoked for firing the appropriate event.
boolean	hasNext()
Object	next()
void	remove()

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractIterator

public AbstractIterator(Iterator it)

This class delegates its methods to a wrapped iterator.

Parameters:

it - The iterator that has to be wrapped.

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

fireEvent

protected abstract void fireEvent()

When a client calls the remove() method this callback method is invoked for firing the appropriate event.