Package org.cyclops.cyclopscore.datastructure

Class MultitransformIterator<T,F>

java.lang.Object

org.cyclops.cyclopscore.datastructure.MultitransformIterator<T,F>

Type Parameters:

T - The type over which the resulting iterator will iterate over.

F - The output of the input iterator, and the input of the function.

All Implemented Interfaces:

Iterator<T>

public class MultitransformIterator<T,F>
extends Object
implements Iterator<T>

An iterator that takes an iterator as input, and applies each element of that iterator to a function that produces another iterator. The elements of all resulting iterators are produced by this. This is implemented in a lazy manner, meaning that the function will only be applied to elements when they are needed.

Constructor Summary

Constructors

Constructor	Description
MultitransformIterator(Iterator<? extends F> it, Function<F,Iterator<? extends T>> transformer)

Method Summary

Modifier and Type	Method	Description
static <T> Iterator<T>	flattenIterableIterator(Iterator<? extends Iterable<T>> it)	Flatten the given nested iterator.
boolean	hasNext()
T	next()
void	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 Details

MultitransformIterator

public MultitransformIterator(Iterator<? extends F> it,
 Function<F,Iterator<? extends T>> transformer)

Method Details

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<T>

next

public T next()

Specified by:

next in interface Iterator<T>

remove

public void remove()

Specified by:

remove in interface Iterator<T>

flattenIterableIterator

public static <T> Iterator<T> flattenIterableIterator(Iterator<? extends Iterable<T>> it)

Flatten the given nested iterator.

Type Parameters:

T - The type of the inner iterators.

Parameters:

it - An iterator over iterators.

Returns:

A flattened iterator.