* @param value the string whose typed value is required
* @param node a node to be used for getting a namespace context if the content is namespace-sensitive
*/
public SequenceIterator getTypedValue(CharSequence value, NodeInfo node) throws ValidationException {
SequenceIterator iter = new StringTokenIterator(value.toString());
Object[] data = {node, getItemType()};
return new MappingIterator(iter, this, null, data);
}