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 * This file is available under and governed by the GNU General Public
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 * However, the following notice accompanied the original version of this
 * file and, per its terms, should not be removed:
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 * Copyright (c) 2002 World Wide Web Consortium,
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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.

/**
 * 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='https://www.w3.org/TR/DOM-Level-3-XPath/'>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 null or
empty argument, because the result of doing this is undefined.

Params:
  • prefix – The prefix to look for.
Returns:Returns the associated namespace URI or null if
  none is found.
/**
     * 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);

}