KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > net > sf > jasperreports > engine > fill > JRContinuationSubreportRunner


1 /*
2  * ============================================================================
3  * GNU Lesser General Public License
4  * ============================================================================
5  *
6  * JasperReports - Free Java report-generating library.
7  * Copyright (C) 2001-2006 JasperSoft Corporation http://www.jaspersoft.com
8  *
9  * This library is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU Lesser General Public
11  * License as published by the Free Software Foundation; either
12  * version 2.1 of the License, or (at your option) any later version.
13  *
14  * This library is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17  * Lesser General Public License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public
20  * License along with this library; if not, write to the Free Software
21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
22  *
23  * JasperSoft Corporation
24  * 303 Second Street, Suite 450 North
25  * San Francisco, CA 94107
26  * http://www.jaspersoft.com
27  */
28 package net.sf.jasperreports.engine.fill;
29
30
31 import org.apache.commons.javaflow.Continuation;
32
33
34 /**
35  * Implemetation of {@link net.sf.jasperreports.engine.fill.JRSubreportRunner JRSubreportRunner}
36  * using <a HREF="http://jakarta.apache.org/commons/sandbox/javaflow/">Javaflow</a> continuations.
37  *
38  * @author Lucian Chirita (lucianc@users.sourceforge.net)
39  * @version $Id: JRContinuationSubreportRunner.java 1229 2006-04-19 13:27:35 +0300 (Wed, 19 Apr 2006) teodord $
40  */
41 public class JRContinuationSubreportRunner extends JRSubreportRunnable implements JRSubreportRunner
42 {
43     private Continuation continuation;
44
45     public JRContinuationSubreportRunner(JRFillSubreport fillSubreport)
46     {
47         super(fillSubreport);
48     }
49
50     public boolean isFilling()
51     {
52         return continuation != null;
53     }
54
55     public JRSubreportRunResult start()
56     {
57         continuation = Continuation.startWith(this);
58         return runResult();
59     }
60
61     public JRSubreportRunResult resume()
62     {
63         continuation = Continuation.continueWith(continuation);
64         return runResult();
65     }
66
67     public void reset()
68     {
69         continuation = null;
70     }
71
72     public void cancel()
73     {
74     }
75
76     public void suspend()
77     {
78         Continuation.suspend();
79     }
80 }
81
Popular Tags