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## net.sf.saxon.expr.flwor
Class WhereClausePush

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

    public class WhereClausePush

extends TuplePush

This class represents the tuple stream delivered as the output of a where clause in a FLWOR expression: that is, it supplies all the tuples in its input stream that satisfy a specified predicate. It does not change the values of any variables in the tuple stream.

Constructor Summary
`WhereClausePush(TuplePush destination, Expression predicate)`

Method Summary
`void` | `close()` Close the tuple stream, indicating that no more tuples will be supplied
`void` | `processTuple(XPathContext context)` Notify the availability of the next tuple.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### WhereClausePush

    public WhereClausePush(TuplePush destination,
                           Expression predicate)

Method Detail

### processTuple

    public void processTuple(XPathContext context)
                      throws XPathException

  Description copied from class: `TuplePush`
  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

  Description copied from class: `TuplePush`
  Close the tuple stream, indicating that no more tuples will be supplied

  Overrides:
    `close` in class `TuplePush`
  Throws:
    `XPathException` - if a dynamic error occurs

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Copyright (c) 2004-2011 Saxonica Limited. All rights reserved.