org.exolab.adaptx.xslt

Class LocationPathPattern

java.lang.Object

org.exolab.adaptx.xslt.LocationPathPattern

public abstract class LocationPathPattern
extends java.lang.Object

This class represents a "Location Path Pattern" as specified in the W3C XSLT 1.0 Recommendation.

Version:

$Revision: 3633 $ $Date: 2003-03-01 08:38:44 +0100 (Sat, 01 Mar 2003) $

Author:

Keith Visco

Constructor Summary

Constructors

Constructor and Description
LocationPathPattern()

Method Summary

Modifier and Type	Method and Description
abstract double	getDefaultPriority() Determines the priority of a PatternExpr as follows:
abstract boolean	matches(XPathNode node, XPathContext context) Determines if the given node is matched by this Pattern with respect to the given context.

Methods inherited from class java.lang.Object

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

Constructor Detail

LocationPathPattern

public LocationPathPattern()

Method Detail

getDefaultPriority

public abstract double getDefaultPriority()

Determines the priority of a PatternExpr as follows:

  From the 19991116 XSLT 1.0 Recommendation:
  + If the pattern has the form of a QName preceded by a
    ChildOrAttributeAxisSpecifier or has the form 
    processing-instruction(Literal) then the priority is 0.
  + If the pattern has the form NCName:* preceded by a 
    ChildOrAttributeAxisSpecifier, then the priority is -0.25
  + Otherwise if the pattern consists of just a NodeTest 
    preceded by a ChildOrAttributeAxisSpecifier then the
    priority is -0.5
  + Otherwise the priority is 0.5
 

Returns:

the priority for this PatternExpr

matches

public abstract boolean matches(XPathNode node,
                                XPathContext context)
                         throws XPathException

Determines if the given node is matched by this Pattern with respect to the given context.

Parameters:

node - the node to determine a match for

context - the XPathContext

Returns:

true if the given node is matched by this Pattern

Throws:

XPathException - when an error occurs during evaluation