01: /*
02: * (c) Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 Hewlett-Packard Development Company, LP
03: * All rights reserved.
04: *
05: * Redistribution and use in source and binary forms, with or without
06: * modification, are permitted provided that the following conditions
07: * are met:
08: * 1. Redistributions of source code must retain the above copyright
09: * notice, this list of conditions and the following disclaimer.
10: * 2. Redistributions in binary form must reproduce the above copyright
11: * notice, this list of conditions and the following disclaimer in the
12: * documentation and/or other materials provided with the distribution.
13: * 3. The name of the author may not be used to endorse or promote products
14: * derived from this software without specific prior written permission.
15:
16: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26: *
27: * NsIterator.java
28: *
29: * Created on 28 July 2000, 13:42
30: */
31:
32: package com.hp.hpl.jena.rdf.model;
33:
34: import com.hp.hpl.jena.util.iterator.*;
35:
36: /** An iterator which returns namespace URI's.
37: *
38: * <p>RDF iterators are standard Java iterators, except that they
39: * have an extra method that returns a specifically typed object,
40: * in this case a String representing a namespace URI, and have
41: * a <CODE>close()</CODE> method that should be called to free
42: * resources if the application does not complete the iteration.</p>
43: * @author bwm
44: * @version Release='$Name: $' Revision='$Revision: 1.8 $' Date='$Date: 2008/01/02 12:05:48 $'
45: */
46: public interface NsIterator extends ExtendedIterator {
47:
48: /** Return the next namespace name of the iteration.
49: * @throws NoSuchElementException if there are no more to be returned.
50: * @return The next name space URI from the iteration.
51: */
52: public String nextNs();
53: }
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