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: * @author Teodor Danciu (teodord@users.sourceforge.net)
32: * @version $Id: AbstractValueProvider.java 1229 2006-04-19 10:27:35Z teodord $
33: */
34: public abstract class AbstractValueProvider {
35:
36: /**
37: *
38: */
39: private static AbstractValueProvider currentValueProvider = new AbstractValueProvider() {
40: public Object getValue(JRCalculable calculable) {
41: return calculable.getValue();
42: }
43: };
44:
45: /**
46: *
47: */
48: private static AbstractValueProvider estimatedValueProvider = new AbstractValueProvider() {
49: public Object getValue(JRCalculable calculable) {
50: return ((JRFillVariable) calculable).getEstimatedValue();
51: }
52: };
53:
54: /**
55: *
56: */
57: public static AbstractValueProvider getCurrentValueProvider() {
58: return currentValueProvider;
59: }
60:
61: /**
62: *
63: */
64: public static AbstractValueProvider getEstimatedValueProvider() {
65: return estimatedValueProvider;
66: }
67:
68: /**
69: *
70: */
71: public abstract Object getValue(JRCalculable calculable);
72:
73: }
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