com.caucho.xpath.pattern

Class FromNamespace

java.lang.Object

com.caucho.xpath.pattern.AbstractPattern

com.caucho.xpath.pattern.FromNamespace

public class FromNamespace
extends AbstractPattern

matches namespace nodes of an element.

Field Summary

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

_child, _parent, log, XMLNS

Constructor Summary

Constructors

Constructor and Description
FromNamespace(AbstractPattern parent)

Method Summary

Modifier and Type	Method and Description
AbstractPattern	copyAxis() Returns the node itself for the axis.
AbstractPattern	copyPosition() Returns null since the axis isn't part of the position pattern.
int	count(org.w3c.dom.Node node, Env env, AbstractPattern pattern) Counts the nodes within the axis matching the pattern.
NodeIterator	createNodeIterator(org.w3c.dom.Node node, ExprEnvironment env, AbstractPattern match) Creates a new node iterator.
boolean	isStrictlyAscending() Returns true if the pattern is strictly ascending.
boolean	isUnique() Returns true if the pattern's selector returns unique nodes.
boolean	match(org.w3c.dom.Node node, ExprEnvironment env) matches if the node is a namespace node.
int	position(org.w3c.dom.Node node, Env env, AbstractPattern pattern) Calculates the position of the node in its context.
java.lang.String	toString()

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

findAny, firstNode, getNodeName, getParent, getPrefix, getPriority, isAscending, lastNode, nextNode, select, selectUnique, toPatternString

Methods inherited from class java.lang.Object

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

Constructor Detail

FromNamespace

public FromNamespace(AbstractPattern parent)

Method Detail

match

public boolean match(org.w3c.dom.Node node,
                     ExprEnvironment env)
              throws XPathException

matches if the node is a namespace node.

Specified by:

match in class AbstractPattern

Parameters:

node - the node to test

env - the variable environment.

Returns:

true if the node matches the pattern.

Throws:

XPathException

createNodeIterator

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

Creates a new node iterator.

Parameters:

node - the starting node

env - the variable environment

match - the axis match pattern

Returns:

the node iterator

Throws:

XPathException

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

position

public int position(org.w3c.dom.Node node,
                    Env env,
                    AbstractPattern pattern)
             throws XPathException

Calculates the position of the node in its context.

Overrides:

position in class AbstractPattern

Parameters:

node - the current node

env - the variable environment

pattern - the position pattern

Returns:

the node's position.

Throws:

XPathException

count

public int count(org.w3c.dom.Node node,
                 Env env,
                 AbstractPattern pattern)
          throws XPathException

Counts the nodes within the axis matching the pattern.

Overrides:

count in class AbstractPattern

Parameters:

node - the current node

env - the variable environment

pattern - the position pattern

Returns:

the count of the node list.

Throws:

XPathException

copyAxis

public AbstractPattern copyAxis()

Returns the node itself for the axis.

Overrides:

copyAxis in class AbstractPattern

copyPosition

public AbstractPattern copyPosition()

Returns null since the axis isn't part of the position pattern.

Overrides:

copyPosition in class AbstractPattern

isStrictlyAscending

public boolean isStrictlyAscending()

Returns true if the pattern is strictly ascending.

Overrides:

isStrictlyAscending in class AbstractPattern

isUnique

public boolean isUnique()

Returns true if the pattern's selector returns unique nodes.

Overrides:

isUnique in class AbstractPattern