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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 <code>XPathNSResolver</code> interface permit <code>prefix</code>
* strings in the expression to be properly bound to
* <code>namespaceURI</code> strings. <code>XPathEvaluator</code> can
* construct an implementation of <code>XPathNSResolver</code> from a node,
* or the interface may be implemented by any application.
* <p>See also the <a href='http://www.w3.org/TR/2004/NOTE-DOM-Level-3-XPath-20040226'>Document Object Model (DOM) Level 3 XPath Specification</a>.
*/
public interface XPathNSResolver {
/**
* Look up the namespace URI associated to the given namespace prefix. The
* XPath evaluator must never call this with a <code>null</code> or
* empty argument, because the result of doing this is undefined.
* @param prefix The prefix to look for.
* @return Returns the associated namespace URI or <code>null</code> if
* none is found.
*/
public String lookupNamespaceURI(String prefix);
}
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