org.planx.xpath.expr.axis
Class Axis

java.lang.Object
  org.planx.xpath.expr.axis.Axis

Direct Known Subclasses:

AncestorAxis, AttributeAxis, ChildAxis, DescendantAxis, FollowingSiblingAxis, ParentAxis, PrecedingSiblingAxis, SelfAxis

public abstract class Axis
extends Object

An XPath axis.

Constructor Summary

Axis()

Method Summary

abstract int	getPrincipalNodeType() Returns the principal node type of the axis as specified in Navigator.
abstract boolean	isReverse() Returns true if this axis is a reverse axis.
abstract AxisIterator	iterator(Object contextNode, Navigator navigator) Return an iterator over the nodes of this axis.

Methods inherited from class java.lang.Object

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

Constructor Detail

Axis

public Axis()

Method Detail

iterator

public abstract AxisIterator iterator(Object contextNode,
                                      Navigator navigator)
                               throws XPathException

Return an iterator over the nodes of this axis.

Throws:

XPathException

getPrincipalNodeType

public abstract int getPrincipalNodeType()

Returns the principal node type of the axis as specified in Navigator.

isReverse

public abstract boolean isReverse()

Returns true if this axis is a reverse axis. I.e. returns nodes in reverse document order.