01: /**
02: * ========================================
03: * JFreeReport : a free Java report library
04: * ========================================
05: *
06: * Project Info: http://reporting.pentaho.org/
07: *
08: * (C) Copyright 2000-2007, by Object Refinery Limited, Pentaho Corporation and Contributors.
09: *
10: * This library is free software; you can redistribute it and/or modify it under the terms
11: * of the GNU Lesser General Public License as published by the Free Software Foundation;
12: * either 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, but WITHOUT ANY WARRANTY;
15: * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
16: * See the GNU Lesser General Public License for more details.
17: *
18: * You should have received a copy of the GNU Lesser General Public License along with this
19: * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
20: * Boston, MA 02111-1307, USA.
21: *
22: * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
23: * in the United States and other countries.]
24: *
25: * ------------
26: * $Id: DataSetUtility.java 3525 2007-10-16 11:43:48Z tmorgner $
27: * ------------
28: * (C) Copyright 2000-2005, by Object Refinery Limited.
29: * (C) Copyright 2005-2007, by Pentaho Corporation.
30: */package org.jfree.report.util;
31:
32: import org.jfree.report.DataSet;
33: import org.jfree.report.DataSourceException;
34: import org.jfree.util.ObjectUtilities;
35:
36: /**
37: * Creation-Date: 17.04.2006, 11:43:04
38: *
39: * @author Thomas Morgner
40: */
41: public class DataSetUtility {
42: private DataSetUtility() {
43: }
44:
45: public static Object getByName(final DataSet ds, final String column)
46: throws DataSourceException {
47: return getByName(ds, column, null);
48: }
49:
50: public static Object getByName(final DataSet ds,
51: final String column, final Object defaultVal)
52: throws DataSourceException {
53: final int size = ds.getColumnCount();
54: for (int i = 0; i < size; i++) {
55: final String columnName = ds.getColumnName(i);
56: if (ObjectUtilities.equal(column, columnName)) {
57: return ds.get(i);
58: }
59: }
60: return defaultVal;
61: }
62:
63: public static boolean isColumnDefined(final String name,
64: final DataSet params) throws DataSourceException {
65: final int size = params.getColumnCount();
66: for (int i = 0; i < size; i++) {
67: final String columnName = params.getColumnName(i);
68: if (ObjectUtilities.equal(name, columnName)) {
69: return true;
70: }
71: }
72: return false;
73: }
74:
75: }
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