com.caucho.xpath.pattern
Class AxisIterator

java.lang.Object
  com.caucho.xpath.pattern.NodeIterator
      com.caucho.xpath.pattern.AxisIterator

All Implemented Interfaces:

ExprEnvironment, java.util.Iterator<org.w3c.dom.Node>

Direct Known Subclasses:

AttributeIterator

public class AxisIterator
extends NodeIterator

Uses the axis to select new nodes.

Field Summary

protected AbstractPattern	_axis
protected org.w3c.dom.Node	_lastNode
protected AbstractPattern	_match
protected org.w3c.dom.Node	_next
protected org.w3c.dom.Node	_node
protected NodeIterator	_parentIter

Fields inherited from class com.caucho.xpath.pattern.NodeIterator

_contextNode, _env, _position, _size, log

Constructor Summary

protected	AxisIterator(ExprEnvironment env)
	AxisIterator(NodeIterator parentIter, AbstractPattern axis, org.w3c.dom.Node node, ExprEnvironment env, AbstractPattern match) Creates the new AxisIterator.

Method Summary

java.lang.Object	clone() clones the iterator
int	getContextSize() Returns the number of nodes in the context list.
boolean	hasNext() True if there's more data.
org.w3c.dom.Node	nextNode() Returns the next selected node.
java.lang.String	toString()

Methods inherited from class com.caucho.xpath.pattern.NodeIterator

copy, getContextNode, getContextPosition, getCurrentNode, getFunction, getOwnerDocument, getPositionIndex, getStylesheetEnv, getVar, next, nextSelectedNode, remove, setContextNode, setMorePositions, stringValue, systemProperty

Methods inherited from class java.lang.Object

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

Field Detail

_parentIter

protected NodeIterator _parentIter

_axis

protected AbstractPattern _axis

_node

protected org.w3c.dom.Node _node

_next

protected org.w3c.dom.Node _next

_lastNode

protected org.w3c.dom.Node _lastNode

_match

protected AbstractPattern _match

Constructor Detail

AxisIterator

protected AxisIterator(ExprEnvironment env)

AxisIterator

public AxisIterator(NodeIterator parentIter,
                    AbstractPattern axis,
                    org.w3c.dom.Node node,
                    ExprEnvironment env,
                    AbstractPattern match)
             throws XPathException

Creates the new AxisIterator.

Parameters:

parentIter - the parent iterator

axis - the owning axis

node - the first node

env - the variable environment

match - the node matching pattern

Throws:

XPathException

Method Detail

hasNext

public boolean hasNext()

True if there's more data.

Specified by:

hasNext in interface java.util.Iterator<org.w3c.dom.Node>

Specified by:

hasNext in class NodeIterator

nextNode

public org.w3c.dom.Node nextNode()
                          throws XPathException

Returns the next selected node.

Specified by:

nextNode in class NodeIterator

Throws:

XPathException

getContextSize

public int getContextSize()

Returns the number of nodes in the context list.

Specified by:

getContextSize in interface ExprEnvironment

Overrides:

getContextSize in class NodeIterator

clone

public java.lang.Object clone()

Description copied from class: NodeIterator

clones the iterator

Specified by:

clone in class NodeIterator

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object