net.sf.staccatocommons.iterators.delayed
Class DelayedSingleIterator<A>

java.lang.Object
  net.sf.staccatocommons.iterators.AbstractUnmodifiableIterator<A>
      net.sf.staccatocommons.iterators.thriter.AbstractThriterator<A>
          net.sf.staccatocommons.iterators.thriter.AdvanceThriterator<A>
              net.sf.staccatocommons.iterators.SingleThriterator<A>
                  net.sf.staccatocommons.iterators.delayed.DelayedSingleIterator<A>

All Implemented Interfaces:

Iterator<A>, EmptyAware, Thriter<A>, Thriterator<A>

public class DelayedSingleIterator<A>
extends SingleThriterator<A>

Author:

flbulgarelli

Constructor Summary

DelayedSingleIterator(Thunk<A> element)
Creates a new DelayedSingleIterator

Method Summary

A	current() Answers element at the current position of this Thriter.
Thunk<A>	delayedCurrent() Answers a Thunk that, when evaluated through Thunk.value(), will return the current element of this Thriter at the time of being Thriter.delayedCurrent() sent.

Methods inherited from class net.sf.staccatocommons.iterators.SingleThriterator

advanceNext, hasNext, toString

Methods inherited from class net.sf.staccatocommons.iterators.thriter.AdvanceThriterator

next

Methods inherited from class net.sf.staccatocommons.iterators.thriter.AbstractThriterator

delayedNext, isEmpty

Methods inherited from class net.sf.staccatocommons.iterators.AbstractUnmodifiableIterator

remove

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

remove

Constructor Detail

DelayedSingleIterator

public DelayedSingleIterator(@NonNull
                             Thunk<A> element)

Creates a new DelayedSingleIterator

Method Detail

current

public A current()
          throws NoSuchElementException

Description copied from interface: Thriter

Answers element at the current position of this Thriter. Result of this method if Thriter.advanceNext() was never evaluated before is undefined.

Specified by:

current in interface Thriter<A>

Overrides:

current in class SingleThriterator<A>

Returns:

the current element

Throws:

NoSuchElementException

delayedCurrent

public Thunk<A> delayedCurrent()

Description copied from interface: Thriter

Answers a Thunk that, when evaluated through Thunk.value(), will return the current element of this Thriter at the time of being Thriter.delayedCurrent() sent. This means, that the value of the returned thunk must must always equals, even if this Thriter was advanced later.

Specified by:

delayedCurrent in interface Thriter<A>

Overrides:

delayedCurrent in class AbstractThriterator<A>

Returns:

a Thunk tha provides Thriter.current() at the time of this message being sent.