01: /*--
02:
03: Copyright (C) 2002-2005 Adrian Price.
04: All rights reserved.
05:
06: Redistribution and use in source and binary forms, with or without
07: modification, are permitted provided that the following conditions
08: are met:
09:
10: 1. Redistributions of source code must retain the above copyright
11: notice, this list of conditions, and the following disclaimer.
12:
13: 2. Redistributions in binary form must reproduce the above copyright
14: notice, this list of conditions, and the disclaimer that follows
15: these conditions in the documentation and/or other materials
16: provided with the distribution.
17:
18: 3. The names "OBE" and "Open Business Engine" must not be used to
19: endorse or promote products derived from this software without prior
20: written permission. For written permission, please contact
21: adrianprice@sourceforge.net.
22:
23: 4. Products derived from this software may not be called "OBE" or
24: "Open Business Engine", nor may "OBE" or "Open Business Engine"
25: appear in their name, without prior written permission from
26: Adrian Price (adrianprice@users.sourceforge.net).
27:
28: THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
29: WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
30: OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
31: DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT,
32: INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
33: (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
34: SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
36: STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
37: IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
38: POSSIBILITY OF SUCH DAMAGE.
39:
40: For more information on OBE, please see
41: <http://obe.sourceforge.net/>.
42:
43: */
44:
45: package org.obe.engine.calendar;
46:
47: import org.obe.spi.runtime.BusinessCalendar;
48: import org.obe.xpdl.model.misc.DurationUnit;
49:
50: import java.util.Date;
51: import java.util.GregorianCalendar;
52:
53: /**
54: * A basic business calendar implementation.
55: *
56: * @author Adrian Price
57: */
58: public class BasicBusinessCalendar implements BusinessCalendar {
59: public BasicBusinessCalendar() {
60: }
61:
62: public Date add(Date base, int field, int interval, String user) {
63: GregorianCalendar cal = new GregorianCalendar();
64: cal.setTime(base);
65: cal.add(field, interval);
66: return cal.getTime();
67: }
68:
69: public Date add(Date base, DurationUnit unit, int interval,
70: String user) {
71: return interval == 0 ? base : add(base, unit
72: .getJDKCalendarField(), interval, null);
73: }
74: }
|