Class ForClauseOuterPull


public class ForClauseOuterPull extends ForClausePull
This class represents the tuple stream returned by a "for" clause in a FLWOR expression
  • Constructor Details

  • Method Details

    • nextTuple

      public boolean nextTuple(XPathContext context) throws XPathException
      Deliver the next output tuple. Before returning, this method must set all the variables corresponding to the output tuple in the local stack frame associated with the context object
      Overrides:
      nextTuple in class ForClausePull
      Parameters:
      context - the dynamic evaluation context
      Returns:
      true if another tuple has been generated; false if the tuple stream is exhausted. If the method returns false, the values of the local variables corresponding to this tuple stream are undefined.
      Throws:
      XPathException - if any error occurs
    • close

      public void close()
      Close the tuple stream, indicating that although not all tuples have been read, no further tuples are required and resources can be released
      Overrides:
      close in class ForClausePull