org.dom4j.xpath
Class XPathPattern

java.lang.Object
  org.dom4j.xpath.XPathPattern

All Implemented Interfaces:

NodeFilter, Pattern

public class XPathPattern

extends java.lang.Object

implements Pattern

XPathPattern is an implementation of Pattern which uses an XPath xpath.

Version:

$Revision: 1.16 $

Author:

James Strachan

Field Summary

Fields inherited from interface org.dom4j.rule.Pattern

ANY_NODE, DEFAULT_PRIORITY, NONE, NUMBER_OF_TYPES

Constructor Summary

XPathPattern(org.jaxen.pattern.Pattern pattern)

XPathPattern(java.lang.String text)

Method Summary

protected org.jaxen.ContextSupport	getContextSupport()
java.lang.String	getMatchesNodeName() For patterns which only match an ATTRIBUTE_NODE or an ELEMENT_NODE then this pattern may return the name of the element or attribute it matches.
short	getMatchType()
double	getPriority() Returns the default resolution policy of the pattern according to the XSLT conflict resolution spec.
java.lang.String	getText()
Pattern[]	getUnionPatterns() If this pattern is a union pattern then this method should return an array of patterns which describe the union pattern, which should contain more than one pattern.
protected void	handleJaxenException(org.jaxen.JaxenException e)
boolean	matches(Node node) matches returns true if the given node matches the filter condition.
void	setVariableContext(org.jaxen.VariableContext variableContext)
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

XPathPattern

public XPathPattern(org.jaxen.pattern.Pattern pattern)

XPathPattern

public XPathPattern(java.lang.String text)

Method Detail

matches

public boolean matches(Node node)

Description copied from interface: NodeFilter

matches returns true if the given node matches the filter condition.

Specified by:

matches in interface Pattern

Returns:

true if the pattern matches the given DOM4J node.

getText

public java.lang.String getText()

getPriority

public double getPriority()

Description copied from interface: Pattern

Returns the default resolution policy of the pattern according to the XSLT conflict resolution spec.

Specified by:

getPriority in interface Pattern

getUnionPatterns

public Pattern[] getUnionPatterns()

Description copied from interface: Pattern

If this pattern is a union pattern then this method should return an array of patterns which describe the union pattern, which should contain more than one pattern. Otherwise this method should return null.

Specified by:

getUnionPatterns in interface Pattern

Returns:

an array of the patterns which make up this union pattern or null if this pattern is not a union pattern

getMatchType

public short getMatchType()

Specified by:

getMatchType in interface Pattern

Returns:

the type of node the pattern matches which by default should return ANY_NODE if it can match any kind of node.

getMatchesNodeName

public java.lang.String getMatchesNodeName()

Description copied from interface: Pattern

For patterns which only match an ATTRIBUTE_NODE or an ELEMENT_NODE then this pattern may return the name of the element or attribute it matches. This allows a more efficient rule matching algorithm to be performed, rather than a brute force approach of evaluating every pattern for a given Node.

Specified by:

getMatchesNodeName in interface Pattern

Returns:

the name of the element or attribute this pattern matches or null if this pattern matches any or more than one name.

setVariableContext

public void setVariableContext(org.jaxen.VariableContext variableContext)

toString

public java.lang.String toString()

getContextSupport

protected org.jaxen.ContextSupport getContextSupport()

handleJaxenException

protected void handleJaxenException(org.jaxen.JaxenException e)
                             throws XPathException

Throws:

XPathException