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 3048 2007-07-28 18:02:42Z tmorgner $
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    }