01: /*
02: * ============================================================================
03: * GNU Lesser General Public License
04: * ============================================================================
05: *
06: * JasperReports - Free Java report-generating library.
07: * Copyright (C) 2001-2006 JasperSoft Corporation http://www.jaspersoft.com
08: *
09: * 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: * Abstract base for {@link java.lang.Runnable Runnable}-based
32: * {@link net.sf.jasperreports.engine.fill.JRSubreportRunner JRSubreportRunner}
33: * implementations.
34: *
35: * @author Lucian Chirita (lucianc@users.sourceforge.net)
36: * @version $Id: JRSubreportRunnable.java 1229 2006-04-19 10:27:35Z teodord $
37: */
38: public abstract class JRSubreportRunnable implements Runnable {
39: private final JRFillSubreport fillSubreport;
40:
41: private Throwable error;
42: private boolean running;
43:
44: protected JRSubreportRunnable(JRFillSubreport fillSubreport) {
45: this .fillSubreport = fillSubreport;
46: }
47:
48: protected JRSubreportRunResult runResult() {
49: return new JRSubreportRunResult(!running, error);
50: }
51:
52: public void run() {
53: running = true;
54: error = null;
55:
56: try {
57: fillSubreport.fillSubreport();
58: } catch (JRFillInterruptedException e) {
59: //If the subreport filler was interrupted, we should remain silent
60: } catch (Throwable t) {
61: error = t;
62: }
63:
64: running = false;
65: }
66:
67: protected boolean isRunning() {
68: return running;
69: }
70: }
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