Interface SortKeyEvaluator

  • All Known Implementing Classes:
    ForEachGroup, SortExpression

    public interface SortKeyEvaluator
    Callback interface used to evaluate sort keys. An instance of this class is passed to the SortedIterator, and is used whenever a sort key value needs to be computed.
    • Method Detail

      • evaluateSortKey

        AtomicValue evaluateSortKey​(int n,
                                    XPathContext context)
                             throws XPathException
        Evaluate the n'th sort key of the context item
        n - the requested index
        context - the XPath context
        the evaluated sort key
        XPathException - if any error occurs