net.sf.saxon.tree.linked

Class AttributeEnumeration

java.lang.Object

net.sf.saxon.tree.iter.AxisIteratorImpl

net.sf.saxon.tree.linked.AttributeEnumeration

All Implemented Interfaces:

SequenceIterator, AxisIterator, LookaheadIterator, UnfailingIterator

final class AttributeEnumeration
extends AxisIteratorImpl
implements LookaheadIterator

AttributeEnumeration is an enumeration of all the attribute nodes of an Element.

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 and Description
AttributeEnumeration(NodeImpl node, NodeTest nodeTest) Constructor

Method Summary

Modifier and Type	Method and Description
SequenceIterator	getAnother() Get another enumeration of the same nodes
int	getProperties() Get properties of this iterator, as a bit-significant integer.
boolean	hasNext() Test if there are mode nodes still to come.
Item	next() Get the next node in the iteration, or null if there are no more.

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

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

Methods inherited from class java.lang.Object

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

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

close, current, position

Constructor Detail

AttributeEnumeration

public AttributeEnumeration(NodeImpl node,
                            NodeTest nodeTest)

Constructor

Parameters:

node: - the element whose attributes are required. This may be any type of node, but if it is not an element the enumeration will be empty

nodeTest: - condition to be applied to the names of the attributes selected

Method Detail

hasNext

public boolean hasNext()

Test if there are mode nodes still to come. ("elements" is used here in the sense of the Java enumeration class, not in the XML sense)

Specified by:

hasNext in interface LookaheadIterator

Returns:

true if there are more items in the sequence

next

public Item next()

Get the next node in the iteration, or null if there are no more.

Specified by:

next in interface SequenceIterator

Specified by:

next in interface UnfailingIterator

Returns:

the next item, or null if there are no more items. Once a call on next() has returned null, no further calls should be made. The preferred action for an iterator if subsequent calls on next() are made is to return null again, and all implementations within Saxon follow this rule.

getAnother

public SequenceIterator getAnother()

Get another enumeration of the same nodes

Specified by:

getAnother in interface SequenceIterator

Specified by:

getAnother in interface UnfailingIterator

Returns:

a SequenceIterator that iterates over the same items, positioned before the first item

getProperties

public int getProperties()

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

Specified by:

getProperties in interface SequenceIterator

Overrides:

getProperties in class AxisIteratorImpl

Returns:

the properties of this iterator. This will be some combination of properties such as SequenceIterator.GROUNDED, SequenceIterator.LAST_POSITION_FINDER, and SequenceIterator.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.