001 /**
002 * ========================================
003 * JFreeReport : a free Java report library
004 * ========================================
005 *
006 * Project Info: http://reporting.pentaho.org/
007 *
008 * (C) Copyright 2000-2007, by Object Refinery Limited, Pentaho Corporation and Contributors.
009 *
010 * This library is free software; you can redistribute it and/or modify it under the terms
011 * of the GNU Lesser General Public License as published by the Free Software Foundation;
012 * either version 2.1 of the License, or (at your option) any later version.
013 *
014 * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
015 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
016 * See the GNU Lesser General Public License for more details.
017 *
018 * You should have received a copy of the GNU Lesser General Public License along with this
019 * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
020 * Boston, MA 02111-1307, USA.
021 *
022 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
023 * in the United States and other countries.]
024 *
025 * ------------
026 * $Id: ParameterDataRow.java,v 1.5 2007/04/01 18:49:24 taqua Exp $
027 * ------------
028 * (C) Copyright 2000-2005, by Object Refinery Limited.
029 * (C) Copyright 2005-2007, by Pentaho Corporation.
030 */
031 package org.jfree.report.data;
032
033 import org.jfree.report.DataRow;
034 import org.jfree.report.DataSourceException;
035 import org.jfree.report.flow.ParameterMapping;
036 import org.jfree.report.util.ReportParameters;
037
038 /**
039 * This is the first datarow in each report. It holds the values of all declared
040 * input parameters. This datarow does not advance and does not keep track of
041 * any changes, as parameters are considered read-only once the reporting has
042 * started.
043 *
044 * @author Thomas Morgner
045 */
046 public class ParameterDataRow extends StaticDataRow
047 {
048 public ParameterDataRow(final ReportParameters parameters)
049 {
050 final String[] names = parameters.keys();
051 final Object[] values = new Object[parameters.size()];
052
053 for (int i = 0; i < names.length; i++)
054 {
055 final String key = names[i];
056 values[i] = parameters.get(key);
057 }
058 setData(names, values);
059 }
060
061 public ParameterDataRow(final ParameterMapping[] parameters, final DataRow dataRow)
062 throws DataSourceException
063 {
064 final String[] innerNames = new String[parameters.length];
065 final Object[] values = new Object[parameters.length];
066 for (int i = 0; i < parameters.length; i++)
067 {
068 final ParameterMapping parameter = parameters[i];
069 final String name = parameter.getName();
070 innerNames[i] = parameter.getAlias();
071 values[i] = dataRow.get(name);
072 }
073 setData(innerNames, values);
074 }
075 }