Source for org.jfree.report.data.ParameterDataRow

   1: /**
   2:  * ========================================
   3:  * JFreeReport : a free Java report library
   4:  * ========================================
   5:  *
   6:  * Project Info:  http://reporting.pentaho.org/
   7:  *
   8:  * (C) Copyright 2000-2007, by Object Refinery Limited, Pentaho Corporation and Contributors.
   9:  *
  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: ParameterDataRow.java 2725 2007-04-01 18:49:29Z taqua $
  27:  * ------------
  28:  * (C) Copyright 2000-2005, by Object Refinery Limited.
  29:  * (C) Copyright 2005-2007, by Pentaho Corporation.
  30:  */
  31: package org.jfree.report.data;
  32: 
  33: import org.jfree.report.DataRow;
  34: import org.jfree.report.DataSourceException;
  35: import org.jfree.report.flow.ParameterMapping;
  36: import org.jfree.report.util.ReportParameters;
  37: 
  38: /**
  39:  * This is the first datarow in each report. It holds the values of all declared
  40:  * input parameters. This datarow does not advance and does not keep track of
  41:  * any changes, as parameters are considered read-only once the reporting has
  42:  * started.
  43:  *
  44:  * @author Thomas Morgner
  45:  */
  46: public class ParameterDataRow extends StaticDataRow
  47: {
  48:   public ParameterDataRow(final ReportParameters parameters)
  49:   {
  50:     final String[] names = parameters.keys();
  51:     final Object[] values = new Object[parameters.size()];
  52: 
  53:     for (int i = 0; i < names.length; i++)
  54:     {
  55:       final String key = names[i];
  56:       values[i] = parameters.get(key);
  57:     }
  58:     setData(names, values);
  59:   }
  60: 
  61:   public ParameterDataRow(final ParameterMapping[] parameters, final DataRow dataRow)
  62:           throws DataSourceException
  63:   {
  64:     final String[] innerNames = new String[parameters.length];
  65:     final Object[] values = new Object[parameters.length];
  66:     for (int i = 0; i < parameters.length; i++)
  67:     {
  68:       final ParameterMapping parameter = parameters[i];
  69:       final String name = parameter.getName();
  70:       innerNames[i] = parameter.getAlias();
  71:       values[i] = dataRow.get(name);
  72:     }
  73:     setData(innerNames, values);
  74:   }
  75: }