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.olap.mapping;
29:
30: import java.util.Iterator;
31: import java.util.List;
32:
33: /**
34: * @author Lucian Chirita (lucianc@users.sourceforge.net)
35: * @version $Id: DataMapping.java 1247 2006-05-05 16:13:59Z lucianc $
36: */
37: public class DataMapping implements Mapping {
38: private final boolean formatted;
39: private final List filter;
40: private final List positions;
41:
42: public DataMapping(boolean formatted, List filter, List positions) {
43: this .formatted = formatted;
44: this .filter = filter;
45: this .positions = positions;
46: }
47:
48: public List getFilter() {
49: return filter;
50: }
51:
52: public boolean isFormatted() {
53: return formatted;
54: }
55:
56: public List getPositions() {
57: return positions;
58: }
59:
60: public Iterator memberMappings() {
61: return filter == null ? new EmptyIt() : filter.iterator();
62: }
63:
64: protected static class EmptyIt implements Iterator {
65: public void remove() {
66: throw new UnsupportedOperationException();
67: }
68:
69: public boolean hasNext() {
70: return false;
71: }
72:
73: public Object next() {
74: return null;
75: }
76: }
77: }
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