com.caucho.xpath.pattern
Class FromSelf

java.lang.Object
  com.caucho.xpath.pattern.AbstractPattern
      com.caucho.xpath.pattern.FromSelf

public class FromSelf
extends AbstractPattern

The self axis matches the current node.

Field Summary

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

_child, _parent, log, XMLNS

Constructor Summary

FromSelf(AbstractPattern parent)

Method Summary

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) Only one node in the self axis.
NodeIterator	createNodeIterator(org.w3c.dom.Node node, ExprEnvironment env, AbstractPattern match) Creates a new node iterator.
boolean	equals(java.lang.Object b) Returns true if the two patterns are equal.
org.w3c.dom.Node	firstNode(org.w3c.dom.Node node, ExprEnvironment env) Returns the first node in the selection order.
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) The self axis always matches.
org.w3c.dom.Node	nextNode(org.w3c.dom.Node node, org.w3c.dom.Node lastNode) Returns the next node in the selection order.
int	position(org.w3c.dom.Node node, Env env, AbstractPattern pattern) Only one node in the self axis.
java.lang.String	toString()

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

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

Methods inherited from class java.lang.Object

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

Constructor Detail

FromSelf

public FromSelf(AbstractPattern parent)

Method Detail

match

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

The self axis always matches.

Specified by:

match in class AbstractPattern

Parameters:

node - the current node

env - the variable environment

Returns:

true

Throws:

XPathException

position

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

Only one node in the self axis.

Parameters:

node - the current node

env - the variable environment

pattern - the position pattern

Returns:

the node's position.

count

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

Only one node in the self axis.

Parameters:

node - the current node

env - the variable environment

pattern - the position pattern

Returns:

the count of the node list.

firstNode

public org.w3c.dom.Node firstNode(org.w3c.dom.Node node,
                                  ExprEnvironment env)

Returns the first node in the selection order.

Overrides:

firstNode in class AbstractPattern

Parameters:

node - the current node

Returns:

the first node

nextNode

public org.w3c.dom.Node nextNode(org.w3c.dom.Node node,
                                 org.w3c.dom.Node lastNode)

Returns the next node in the selection order.

Overrides:

nextNode in class AbstractPattern

Parameters:

node - the current node

lastNode - the last node

Returns:

the next node

equals

public boolean equals(java.lang.Object b)

Returns true if the two patterns are equal.

Overrides:

equals in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

createNodeIterator

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

Creates a new node iterator.

Overrides:

createNodeIterator in class AbstractPattern

Parameters:

node - the starting node

env - the variable environment

match - the axis match pattern

Returns:

the node iterator

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