01: package net.sf.saxon.expr;
02:
03: import net.sf.saxon.om.SequenceIterator;
04: import net.sf.saxon.trans.XPathException;
05:
06: /**
07: * A LastPositionFinder is an interface implemented by any SequenceIterator that is
08: * able to return the position of the last item in the sequence.
09: */
10:
11: public interface LastPositionFinder extends SequenceIterator {
12:
13: /**
14: * Get the last position (that is, the number of items in the sequence). This method is
15: * non-destructive: it does not change the state of the iterator.
16: * The result is undefined if the next() method of the iterator has already returned null.
17: */
18:
19: public int getLastPosition() throws XPathException;
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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