edu.rice.cs.plt.iter
Class MappedIterator<S,T>

java.lang.Object
  edu.rice.cs.plt.iter.MappedIterator<S,T>

All Implemented Interfaces:

Composite, java.util.Iterator<T>

public class MappedIterator<S,T>
extends java.lang.Object
implements java.util.Iterator<T>, Composite

An Iterator that applies a provided mapping lambda to each member of a source iterator. remove() simply delegates to the source iterator.

Constructor Summary

MappedIterator(java.util.Iterator<? extends S> source, Lambda<? super S,? extends T> map)

Method Summary

int	compositeHeight() Get the maximum path length from this node to a leaf.
int	compositeSize() Get the number of nodes in the tree rooted at this node.
boolean	hasNext()
static <S,T> MappedIterator<S,T>	make(java.util.Iterator<? extends S> source, Lambda<? super S,? extends T> map) Call the constructor (allows the type arguments to be inferred)
T	next()
void	remove()

Methods inherited from class java.lang.Object

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

Constructor Detail

MappedIterator

public MappedIterator(java.util.Iterator<? extends S> source,
                      Lambda<? super S,? extends T> map)

Method Detail

compositeHeight

public int compositeHeight()

Description copied from interface: Composite

Get the maximum path length from this node to a leaf.

Specified by:

compositeHeight in interface Composite

compositeSize

public int compositeSize()

Description copied from interface: Composite

Get the number of nodes in the tree rooted at this node. Always 1 or greater.

Specified by:

compositeSize in interface Composite

hasNext

public boolean hasNext()

Specified by:

hasNext in interface java.util.Iterator<T>

next

public T next()

Specified by:

next in interface java.util.Iterator<T>

remove

public void remove()

Specified by:

remove in interface java.util.Iterator<T>

make

public static <S,T> MappedIterator<S,T> make(java.util.Iterator<? extends S> source,
                                             Lambda<? super S,? extends T> map)

Call the constructor (allows the type arguments to be inferred)