/**
* Return one of the prefixes mapped to a Namespace URI.
*
* <p>If more than one prefix is currently mapped to the same URI, this method will make an
* arbitrary selection; if you want all of the prefixes, use the {@link #getPrefixes} method
* instead.
*
* <p><strong>Note:</strong> this will never return the empty (default) prefix; to check for a
* default prefix, use the {@link #getURI getURI} method with an argument of "".
*
* @param uri The Namespace URI.
* @return One of the prefixes currently mapped to the URI supplied, or null if none is mapped or
* if the URI is assigned to the default Namespace.
* @see #getPrefixes(java.lang.String)
* @see #getURI
*/
public String getPrefix(String uri) {
return currentContext.getPrefix(uri);
}
