net.emaze.dysfunctional.options

Class OptionalIterator<E>

java.lang.Object

net.emaze.dysfunctional.iterations.ReadOnlyIterator<Optional<E>>

net.emaze.dysfunctional.options.OptionalIterator<E>

Type Parameters:

E - the iterator element type

All Implemented Interfaces:

Iterator<Optional<E>>

public class OptionalIterator<E>
extends ReadOnlyIterator<Optional<E>>

Decorates an Iterator yielding Optional.of(element) for every element in the contained iterator and Optional.empty() beyond the nested iterator bounds

Author:

rferranti

Constructor Summary

Constructors

Constructor and Description
OptionalIterator(Iterator<E> iterator)

Method Summary

Modifier and Type	Method and Description
boolean	hasNext()
Optional<E>	next() calling next over the boundary of the contained iterator leads Optional.empty indefinitely "no matter how many times you try, you can't shoot the dog"

Methods inherited from class net.emaze.dysfunctional.iterations.ReadOnlyIterator

remove

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining

Constructor Detail

OptionalIterator

public OptionalIterator(Iterator<E> iterator)

Method Detail

hasNext

public boolean hasNext()

next

public Optional<E> next()

calling next over the boundary of the contained iterator leads Optional.empty indefinitely "no matter how many times you try, you can't shoot the dog"

Returns:

Optional yielding next element if present, Optional.empty() otherwise