gnu.trove
Class TDoubleIterator

java.lang.Object
  |
  +--gnu.trove.TIterator
        |
        +--gnu.trove.TPrimitiveIterator
              |
              +--gnu.trove.TDoubleIterator

public class TDoubleIterator

extends gnu.trove.TPrimitiveIterator

Iterator for double collections.

Version:

$Id: TDoubleIterator.java,v 1.2 2003/03/19 04:41:29 ericdf Exp $

Author:

Eric D. Friedman

Field Summary

protected int	_expectedSize the number of elements this iterator believes are in the data structure it accesses.
protected TPrimitiveHash	_hash the collection on which this iterator operates.
protected int	_index the index used for iteration.

Constructor Summary

TDoubleIterator(TDoubleHash hash)
Creates a TDoubleIterator for the elements in the specified collection.

Method Summary

boolean	hasNext() Returns true if the iterator can be advanced past its current location.
protected void	moveToNextIndex() Sets the internal index so that the `next' object can be returned.
double	next() Advances the iterator to the next element in the underlying collection and returns it.
protected int	nextIndex() Returns the index of the next value in the data structure or a negative value if the iterator is exhausted.
void	remove() Removes the last entry returned by the iterator.

Methods inherited from class java.lang.Object

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

Field Detail

_hash

protected final TPrimitiveHash _hash

the collection on which this iterator operates.

_expectedSize

protected int _expectedSize

the number of elements this iterator believes are in the data structure it accesses.

_index

protected int _index

the index used for iteration.

Constructor Detail

TDoubleIterator

public TDoubleIterator(TDoubleHash hash)

Creates a TDoubleIterator for the elements in the specified collection.

Method Detail

next

public double next()

Advances the iterator to the next element in the underlying collection and returns it.

Returns:

the next double in the collection

Throws:

NoSuchElementException - if the iterator is already exhausted

nextIndex

protected final int nextIndex()

Returns the index of the next value in the data structure or a negative value if the iterator is exhausted.

Specified by:

nextIndex in class gnu.trove.TIterator

Returns:

an int value

Throws:

java.util.ConcurrentModificationException - if the underlying collection's size has been modified since the iterator was created.

hasNext

public boolean hasNext()

Returns true if the iterator can be advanced past its current location.

Returns:

a boolean value

remove

public void remove()

Removes the last entry returned by the iterator. Invoking this method more than once for a single entry will leave the underlying data structure in a confused state.

moveToNextIndex

protected final void moveToNextIndex()

Sets the internal index so that the `next' object can be returned.