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Java > Open Source Codes > com > sun > tools > example > debug > bdi > ThreadIterator


1 /*
2  * @(#)ThreadIterator.java 1.9 05/11/17
3  *
4  * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
5  * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
6  */
7 /*
8  * Copyright (c) 1997-1999 by Sun Microsystems, Inc. All Rights Reserved.
9  *
10  * Sun grants you ("Licensee") a non-exclusive, royalty free, license to use,
11  * modify and redistribute this software in source and binary code form,
12  * provided that i) this copyright notice and license appear on all copies of
13  * the software; and ii) Licensee does not utilize the software in a manner
14  * which is disparaging to Sun.
15  *
16  * This software is provided "AS IS," without a warranty of any kind. ALL
17  * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY
18  * IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
19  * NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE
20  * LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING
21  * OR DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS
22  * LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT,
23  * INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER
24  * CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF
25  * OR INABILITY TO USE SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
26  * POSSIBILITY OF SUCH DAMAGES.
27  *
28  * This software is not designed or intended for use in on-line control of
29  * aircraft, air traffic, aircraft navigation or aircraft communications; or in
30  * the design, construction, operation or maintenance of any nuclear
31  * facility. Licensee represents and warrants that it will not use or
32  * redistribute the Software for such purposes.
33  */
34
35 package com.sun.tools.example.debug.bdi;
36
37 import com.sun.jdi.ThreadGroupReference;
38 import com.sun.jdi.ThreadReference;
39 import java.util.List JavaDoc;
40 import java.util.Iterator JavaDoc;
41                      
42 public class ThreadIterator implements Iterator JavaDoc {
43     Iterator JavaDoc it = null;
44     ThreadGroupIterator tgi;
45
46     public ThreadIterator(ThreadGroupReference tg) {
47         tgi = new ThreadGroupIterator(tg);
48     }
49
50     //### make this package access only?
51 public ThreadIterator(List JavaDoc tgl) {
52         tgi = new ThreadGroupIterator(tgl);
53     }
54
55     public boolean hasNext() {
56         while (it == null || !it.hasNext()) {
57             if (!tgi.hasNext()) {
58                 return false; // no more
59 }
60             it = tgi.nextThreadGroup().threads().iterator();
61         }
62         return true;
63     }
64
65     public Object JavaDoc next() {
66         return it.next();
67     }
68
69     public ThreadReference nextThread() {
70         return (ThreadReference)next();
71     }
72
73     public void remove() {
74         throw new UnsupportedOperationException JavaDoc();
75     }
76 }
77
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