Package net.sf.saxon.tree.util

Class Navigator.EmptyTextFilter

java.lang.Object

net.sf.saxon.tree.iter.AxisIteratorImpl

net.sf.saxon.tree.util.Navigator.EmptyTextFilter

All Implemented Interfaces:

SequenceIterator, AxisIterator, UnfailingIterator

Enclosing class:

Navigator

public static class Navigator.EmptyTextFilter
extends AxisIteratorImpl

EmptyTextFilter is an iterator that applies removes any zero-length text nodes returned by an underlying AxisIterator.

Field Summary

Fields inherited from class net.sf.saxon.tree.iter.AxisIteratorImpl

current, position

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

GROUNDED, LAST_POSITION_FINDER, LOOKAHEAD

Constructor Summary

Constructors

Constructor	Description
EmptyTextFilter(AxisIterator base)	Construct an EmptyTextFilter

Method Summary

Modifier and Type	Method	Description
AxisIterator	getAnother()	Get another iterator over the same sequence of items, positioned at the start of the sequence.
NodeInfo	next()	Get the next item in the sequence.

Methods inherited from class net.sf.saxon.tree.iter.AxisIteratorImpl

atomize, close, current, getProperties, getStringValue, iterateAxis, moveNext, position

Methods inherited from class java.lang.Object

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

Constructor Detail

EmptyTextFilter

public EmptyTextFilter(AxisIterator base)

Construct an EmptyTextFilter

Parameters:

base - the underlying iterator that returns all the nodes on a required axis. This must not be an atomizing iterator

Method Detail

next

public NodeInfo next()

Description copied from interface: UnfailingIterator

Get the next item in the sequence.

Returns:

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

getAnother

public AxisIterator getAnother()

Description copied from interface: UnfailingIterator

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.

Returns:

a new iterator over the same sequence