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 /*
  * Copyright (c) 2004 World Wide Web Consortium,
  *
  * (Massachusetts Institute of Technology, European Research Consortium for
  * Informatics and Mathematics, Keio University). All Rights Reserved. This
  * work is distributed under the W3C(r) Software License [1] in the hope that
  * it will be useful, but WITHOUT ANY WARRANTY; without even the implied
  * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  *
 * [1] http://www.w3.org/Consortium/Legal/2002/copyright-software-20021231
 */
package org.w3c.dom.xpath;

The XPathNSResolver interface permit prefix strings in the expression to be properly bound to namespaceURI strings. XPathEvaluator can construct an implementation of XPathNSResolver from a node, or the interface may be implemented by any application.

See also the Document Object Model (DOM) Level 3 XPath Specification.

public interface XPathNSResolver {
    
Look up the namespace URI associated to the given namespace prefix. The XPath evaluator must never call this with a null or empty argument, because the result of doing this is undefined.

Parameters:
prefix The prefix to look for.
Returns:
Returns the associated namespace URI or null if none is found.
    public String lookupNamespaceURI(String prefix);
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