xdi2.core.util.iterators

Class DescendingIterator<D,T>

java.lang.Object

xdi2.core.util.iterators.IterableIterator<T>

xdi2.core.util.iterators.WrappingIterator<T>

xdi2.core.util.iterators.ReadOnlyIterator<T>

xdi2.core.util.iterators.DescendingIterator<D,T>

All Implemented Interfaces:

Iterable<T>, Iterator<T>

Direct Known Subclasses:

CompositeIterator

public abstract class DescendingIterator<D,T>
extends ReadOnlyIterator<T>

An iterator that can iterate over D, and for every item in D, an iterator over items of type T is obtained. In the end, all Ts obtained from all Ds are returned.

Author:

markus

Field Summary

Fields

Modifier and Type	Field and Description
protected Iterator<D>	d
protected Iterator<T>	t

Constructor Summary

Constructors

Constructor and Description
DescendingIterator(Iterator<D> iterator)

Method Summary

Modifier and Type	Method and Description
abstract Iterator<T>	descend(D item)
boolean	hasNext()
T	next()

Methods inherited from class xdi2.core.util.iterators.ReadOnlyIterator

remove

Methods inherited from class xdi2.core.util.iterators.IterableIterator

iterator

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Detail

d

protected Iterator<D> d

t

protected Iterator<T> t

Constructor Detail

DescendingIterator

public DescendingIterator(Iterator<D> iterator)

Method Detail

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<T>

Overrides:

hasNext in class WrappingIterator<T>

next

public T next()

Specified by:

next in interface Iterator<T>

Overrides:

next in class WrappingIterator<T>

descend

public abstract Iterator<T> descend(D item)