01: package net.sf.saxon.expr;
02:
03: import net.sf.saxon.om.SequenceIterator;
04:
05: /**
06: * A ReversibleIterator is an interface implemented by any SequenceIterator that is
07: * able to deliver items in reverse order (or to supply another iterator that can
08: * do so).
09: */
10:
11: public interface ReversibleIterator extends SequenceIterator {
12:
13: /**
14: * Get a new SequenceIterator that returns the same items in reverse order.
15: * If this SequenceIterator is an AxisIterator, then the returned SequenceIterator
16: * must also be an AxisIterator.
17: */
18:
19: public SequenceIterator getReverseIterator();
20:
21: }
22:
23: //
24: // The contents of this file are subject to the Mozilla Public License Version 1.0 (the "License");
25: // you may not use this file except in compliance with the License. You may obtain a copy of the
26: // License at http://www.mozilla.org/MPL/
27: //
28: // Software distributed under the License is distributed on an "AS IS" basis,
29: // WITHOUT WARRANTY OF ANY KIND, either express or implied.
30: // See the License for the specific language governing rights and limitations under the License.
31: //
32: // The Original Code is: all this file.
33: //
34: // The Initial Developer of the Original Code is Michael H. Kay.
35: //
36: // Portions created by (your name) are Copyright (C) (your legal entity). All Rights Reserved.
37: //
38: // Contributor(s): none.
39: //
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