Class WindowClausePush

  • public class WindowClausePush
    extends TuplePush
    Implement a sliding or tumbling window clause of a FLWOR expression in tuple-push mode. The entire window processing is activated once for each input tuple, and it generates one output tuple for each identified window.
    • Method Detail

      • processTuple

        public void processTuple​(XPathContext context)
                          throws XPathException
        Notify the availability of the next tuple. Before calling this method, the supplier of the tuples must set all the variables corresponding to the supplied tuple in the local stack frame associated with the context object
        Specified by:
        processTuple in class TuplePush
        context - the dynamic evaluation context
        XPathException - if a dynamic error occurs
      • close

        public void close()
                   throws XPathException
        Close the tuple stream, indicating that no more tuples will be supplied
        close in class TuplePush
        XPathException - if a dynamic error occurs