net.pwall.util

Class ImmutableIteratorBase<T>

java.lang.Object

net.pwall.util.ImmutableIteratorBase<T>

Type Parameters:

T - the collection element type

Direct Known Subclasses:

ImmutableIterator, ImmutableMap.KeyIterator, ImmutableMap.ValueIterator

public class ImmutableIteratorBase<T>
extends Object

Base class for implementations of Iterator for the immutable classes. Holds a reference to the collection array and length.

Author:

Peter Wall

Method Summary

Modifier and Type	Method and Description
T	checkNext() Check whether the iterator has more elements and if so, return the corresponding array item.
boolean	hasNext() Test whether the iterator has any more elements.

Methods inherited from class java.lang.Object

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

Method Detail

hasNext

public boolean hasNext()

Test whether the iterator has any more elements.

Returns:

true if there is at least one element available

checkNext

public T checkNext()

Check whether the iterator has more elements and if so, return the corresponding array item.

Returns:

the array item corresponding to the current element

Throws:

NoSuchElementException - if there are no more elements