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Java > Open Source Codes > net > sf > saxon > expr > LastPositionFinder


1 package net.sf.saxon.expr;
2 import net.sf.saxon.om.SequenceIterator;
3 import net.sf.saxon.trans.XPathException;
4
5
6 /**
7 * A LastPositionFinder is an interface implemented by any SequenceIterator that is
8  * able to return the position of the last item in the sequence.
9 */
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 //
40
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