xdi2.core.util.iterators

Class SelectingMappingIterator<I,O>

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.LookaheadIterator<O>

xdi2.core.util.iterators.SelectingMappingIterator<I,O>

All Implemented Interfaces:

Iterable<O>, Iterator<O>

public abstract class SelectingMappingIterator<I,O>
extends LookaheadIterator<O>

An iterator that returns only items of another iterator that satisfy a certain condition. In addition, it maps the items to other items.

Author:

markus

Field Summary

Fields

Modifier and Type	Field and Description
protected Iterator<I>	iterator

Fields inherited from class xdi2.core.util.iterators.LookaheadIterator

hasNext, nextItem

Constructor Summary

Constructors

Constructor and Description
SelectingMappingIterator(Iterator<I> iterator)

Method Summary

Modifier and Type	Method and Description
protected void	lookahead()
abstract O	map(I item)
abstract boolean	select(I item)

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

hasNext, 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

iterator

protected Iterator<I> iterator

Constructor Detail

SelectingMappingIterator

public SelectingMappingIterator(Iterator<I> iterator)

Method Detail

lookahead

protected void lookahead()

Specified by:

lookahead in class LookaheadIterator<O>

select

public abstract boolean select(I item)

map

public abstract O map(I item)