Package net.sf.saxon.expr.flwor

Class WindowClause.Window

java.lang.Object
net.sf.saxon.expr.flwor.WindowClause.Window
Enclosing class:
WindowClause
protected static class WindowClause.Window extends Object
Information about a window: the items making up the window, as well as the variables relating to the start and end of the window, and the status of the winoow in relation to the processing of the current input sequence.

  • Field Details

    • startItem

      public Item startItem

    • startPosition

      public int startPosition

    • startPreviousItem

      public Item startPreviousItem

    • startNextItem

      public Item startNextItem

    • endItem

      public Item endItem

    • endPosition

      public int endPosition

    • endPreviousItem

      public Item endPreviousItem

    • endNextItem

      public Item endNextItem

    • contents

      public List<Item> contents

    • despatched

      public boolean despatched

  • Constructor Details

    • Window

      protected Window()

  • Method Details

    • isFinished

      public boolean isFinished()
      Ask whether we have found the last item in the window
      Returns:
      true if we have found the last item; false if we are still looking for it.

    • isDespatched

      public boolean isDespatched()
      Ask whether the tuple corresponding to this window has been despatched to the output tuple stream. This does not always happen immediately the end item is determined, because tuples corresponding to the various windows must be despached in order of their start items.
      Returns:
      true if the tuple corresponding to this window has been despatched.