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.data;
29:
30: import java.util.Map;
31:
32: import net.sf.jasperreports.engine.JRField;
33: import net.sf.jasperreports.engine.JRRewindableDataSource;
34:
35: /**
36: * @author Teodor Danciu (teodord@users.sourceforge.net)
37: * @version $Id: JRMapArrayDataSource.java 1229 2006-04-19 10:27:35Z teodord $
38: */
39: public class JRMapArrayDataSource implements JRRewindableDataSource {
40:
41: /**
42: *
43: */
44: private Object[] records = null;
45: private int index = -1;
46:
47: /**
48: *
49: */
50: public JRMapArrayDataSource(Object[] array) {
51: records = array;
52: }
53:
54: /**
55: *
56: */
57: public boolean next() {
58: index++;
59:
60: if (records != null) {
61: return (index < records.length);
62: }
63:
64: return false;
65: }
66:
67: /**
68: *
69: */
70: public Object getFieldValue(JRField field) {
71: Object value = null;
72:
73: Map currentRecord = (Map) records[index];
74:
75: if (currentRecord != null) {
76: value = currentRecord.get(field.getName());
77: }
78:
79: return value;
80: }
81:
82: /**
83: *
84: */
85: public void moveFirst() {
86: this .index = -1;
87: }
88:
89: }
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