org.deegree.commons.xml
Class XPathUtils

java.lang.Object
  org.deegree.commons.xml.XPathUtils

public class XPathUtils
extends Object

Utilitiy methods for common tasks that involve XPath expressions.

Version:

$Revision: $, $Date: $

Author:

Markus Schneider, last edited by: $Author: schneider $

Constructor Summary

XPathUtils()

Method Summary

static Set<String>	extractPrefixes(org.jaxen.expr.Expr xpath) Returns the namespace prefixes that are used in the given XPath 1.0 expression.
static Set<String>	extractPrefixes(String text) Returns the namespace prefixes that are used in the given XPath 1.0 expression.

Methods inherited from class java.lang.Object

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

Constructor Detail

XPathUtils

public XPathUtils()

Method Detail

extractPrefixes

public static Set<String> extractPrefixes(String text)

Returns the namespace prefixes that are used in the given XPath 1.0 expression.

If the expression is not a valid XPath expression, the empty set is returned.

Parameters:

text - xpath expression, must not be null

Returns:

namespace prefixes used in the expression, never null, but can be empty

extractPrefixes

public static Set<String> extractPrefixes(org.jaxen.expr.Expr xpath)

Returns the namespace prefixes that are used in the given XPath 1.0 expression.

Parameters:

xpath - xpath expression, must not be null

Returns:

namespace prefixes used in the expresssion, never null