Class WindowClausePush

java.lang.Object
net.sf.saxon.expr.flwor.TuplePush
net.sf.saxon.expr.flwor.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.
  • Constructor Details

  • Method Details

    • 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
      Parameters:
      context - the dynamic evaluation context
      Throws:
      XPathException - if a dynamic error occurs
    • close

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