net.sf.saxon.om
Class NamespaceIterator

java.lang.Object
  net.sf.saxon.om.NamespaceIterator

All Implemented Interfaces:

AxisIterator, SequenceIterator

public class NamespaceIterator

extends java.lang.Object

implements AxisIterator

This class provides an implementation of the namespace axis over any implementation of the data model. It relies on element nodes to implement the method NodeInfo.getDeclaredNamespaces(int[])

Nested Class Summary

static class

NamespaceIterator.NamespaceNodeImpl Inner class: a model-independent representation of a namespace node

Field Summary

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

ATOMIZABLE, GROUNDED, LAST_POSITION_FINDER, LOOKAHEAD

Constructor Summary

NamespaceIterator(NodeInfo element, NodeTest test)

Method Summary

void	advance() Get the next item in the sequence.
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
int[]	getInScopeNamespaceCodes() Get a list of in-scope namespace codes.
int	getProperties() Get properties of this iterator, as a bit-significant integer.
Item	next() Get the next item in the sequence.
int	position() Get the current position

Methods inherited from class java.lang.Object

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

Constructor Detail

NamespaceIterator

public NamespaceIterator(NodeInfo element,
                         NodeTest test)

Method Detail

advance

public void advance()

Get the next item in the sequence.

next

public Item next()

Get the next item in the sequence.

Specified by:

next in interface AxisIterator

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 AxisIterator

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 AxisIterator

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

Specified by:

getAnother in interface AxisIterator

Returns:

a new iterator over the same sequence

getProperties

public int getProperties()

Get properties of this iterator, as a bit-significant integer.

Specified by:

getProperties in interface SequenceIterator

Returns:

the properties of this iterator. This will be some combination of properties such as GROUNDED, LAST_POSITION_FINDER, and LOOKAHEAD. It is always acceptable to return the value zero, indicating that there are no known special properties. It is acceptable for the properties of the iterator to change depending on its state.

getInScopeNamespaceCodes

public int[] getInScopeNamespaceCodes()

Get a list of in-scope namespace codes. If an array of namespace codes is needed, without actually constructing the namespace nodes, a caller may create the NamespaceIterator and then call this method. The result is an array of integers, each containing a prefix code in the top half and a uri code in the bottom half. Note that calling this method is destructive: the iterator is consumed and cannot be used again.