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


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 /**
32  * Abstract base for {@link java.lang.Runnable Runnable}-based
33  * {@link net.sf.jasperreports.engine.fill.JRSubreportRunner JRSubreportRunner}
34  * implementations.
35  *
36  * @author Lucian Chirita (lucianc@users.sourceforge.net)
37  * @version $Id: JRSubreportRunnable.java 1229 2006-04-19 13:27:35 +0300 (Wed, 19 Apr 2006) teodord $
38  */
39 public abstract class JRSubreportRunnable implements Runnable JavaDoc
40 {
41     private final JRFillSubreport fillSubreport;
42     
43     private Throwable JavaDoc error;
44     private boolean running;
45     
46     protected JRSubreportRunnable(JRFillSubreport fillSubreport)
47     {
48         this.fillSubreport = fillSubreport;
49     }
50
51     protected JRSubreportRunResult runResult()
52     {
53         return new JRSubreportRunResult(!running, error);
54     }
55     
56     public void run()
57     {
58         running = true;
59         error = null;
60         
61         try
62         {
63             fillSubreport.fillSubreport();
64         }
65         catch(JRFillInterruptedException e)
66         {
67             //If the subreport filler was interrupted, we should remain silent
68 }
69         catch(Throwable JavaDoc t)
70         {
71             error = t;
72         }
73
74         running = false;
75     }
76     
77     protected boolean isRunning()
78     {
79         return running;
80     }
81 }
82
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