1 /***
2 * ProducerRunnable.java
3 *
4 * This file is part of the creme library.
5 * The creme library intends to ease the development effort of large
6 * applications by providing easy to use support classes.
7 *
8 * Copyright (C) 2002 Denis Bregeon
9 *
10 * This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
14 *
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
19 *
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with this library; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 *
24 * contact information: dbregeon@sourceforge.net
25 */
26 package org.jcreme.processing;
27
28 /***
29 * This class is designed to act as a data source.
30 *
31 * @author $Author: dbregeon $
32 * @version $Revision: 1.1 $
33 */
34 public class ProducerRunnable implements Runnable {
35
36 /***
37 * The producer that provides items.
38 */
39 private final Producer source;
40
41 /***
42 * Creates new ProducerRunnable
43 *
44 * @param source
45 * The producer that will produce the items.
46 * @throws IllegalArgumentException
47 * if source is null.
48 */
49 public ProducerRunnable(Producer source) throws IllegalArgumentException {
50 if (source == null) {
51 throw new IllegalArgumentException("Null is not a valid Producer.");
52 }
53 this.source = source;
54 }
55
56 /***
57 * The actual production process.
58 *
59 */
60 public void run() {
61 while ((!Thread.interrupted()) && (this.source.produceItem())) {
62
63 }
64 }
65
66 /***
67 * Gives access to the underlying source.
68 *
69 * @return the Producer that is animated by this Runnable.
70 */
71 public Producer getSource() {
72 return this.source;
73 }
74 }