Class ReturnClausePush

java.lang.Object
net.sf.saxon.expr.flwor.TuplePush
net.sf.saxon.expr.flwor.ReturnClausePush

public class ReturnClausePush extends TuplePush
The class represents the final stage in a push-mode tuple pipeline. The previous stages have stored the values corresponding to the current tuple in local variables on the stack; all that remains is to evaluate the return expression (with reference to these variables) and send the results to the current receiver.
  • 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