net.sf.saxon.om
Interface AxisIterator

All Superinterfaces:

SequenceIterator

All Known Implementing Classes:

ArrayIterator, AxisIteratorImpl, EmptyIterator, ListIterator, NamespaceIterator, PrependIterator, ReverseArrayIterator, SingletonIterator

public interface AxisIterator

extends SequenceIterator

A SequenceIterator is used to iterate over a sequence. An AxisIterator is a SequenceIterator that throws no exceptions. Despite its name, an AxisIterator is not invariably used to find nodes on an axis of a tree, though this is its most common use. For example, the class ArrayIterator is also defined as an AxisIterator.

Field Summary

Fields inherited from interface net.sf.saxon.om.SequenceIterator

ATOMIZABLE, GROUNDED, LAST_POSITION_FINDER, LOOKAHEAD

Method Summary

Item	current() Get the current item in the sequence.
SequenceIterator	getAnother() Get another iterator over the same sequence of items, positioned at the start of the sequence.
Item	next() Get the next item in the sequence.
int	position() Get the current position

Methods inherited from interface net.sf.saxon.om.SequenceIterator

getProperties

Method Detail

next

public Item next()

Get the next item in the sequence.

Specified by:

next in interface SequenceIterator

Returns:

the next Item. If there are no more nodes, return null.

current

public Item current()

Get the current item in the sequence.

Specified by:

current in interface SequenceIterator

Returns:

the current item, that is, the item most recently returned by next()

position

public int position()

Get the current position

Specified by:

position in interface SequenceIterator

Returns:

the position of the current item (the item most recently returned by next()), starting at 1 for the first node

getAnother

public SequenceIterator getAnother()

Get another iterator over the same sequence of items, positioned at the start of the sequence. It must be possible to call this method at any time, whether none, some, or all of the items in the original iterator have been read. The method is non-destructive: it does not change the state of the original iterator.

Specified by:

getAnother in interface SequenceIterator

Returns:

a new iterator over the same sequence