Source for org.jfree.report.data.ImportedVariablesDataRow

   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: ImportedVariablesDataRow.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:  */
  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: 
  37: /**
  38:  * Creation-Date: 06.03.2006, 18:15:06
  39:  *
  40:  * @author Thomas Morgner
  41:  */
  42: public class ImportedVariablesDataRow extends StaticDataRow
  43: {
  44:   private String[] outerNames;
  45:   private String[] innerNames;
  46: 
  47:   public ImportedVariablesDataRow(final GlobalMasterRow innerRow)
  48:           throws DataSourceException
  49:   {
  50:     final DataRow globalView = innerRow.getGlobalView();
  51:     final int cols = globalView.getColumnCount();
  52:     this.outerNames = new String[cols];
  53:     this.innerNames = outerNames;
  54:     final Object[] values = new Object[outerNames.length];
  55:     for (int i = 0; i < outerNames.length; i++)
  56:     {
  57:       outerNames[i] = globalView.getColumnName(i);
  58:       values[i] = globalView.get(i);
  59:     }
  60:     setData(outerNames, values);
  61:   }
  62: 
  63:   /**
  64:    * Maps the inner-row into the outer data row. The parameter mapping's name
  65:    * represents the *outer* name and the innernames.
  66:    *
  67:    * @param innerRow
  68:    * @param parameterMappings
  69:    * @throws DataSourceException
  70:    */
  71:   public ImportedVariablesDataRow(final GlobalMasterRow innerRow,
  72:                                   final ParameterMapping[] parameterMappings)
  73:           throws DataSourceException
  74:   {
  75:     this.outerNames = new String[parameterMappings.length];
  76:     this.innerNames = new String[parameterMappings.length];
  77:     final Object[] values = new Object[parameterMappings.length];
  78:     final DataRow globalView = innerRow.getGlobalView();
  79:     for (int i = 0; i < parameterMappings.length; i++)
  80:     {
  81:       final ParameterMapping mapping = parameterMappings[i];
  82:       final String name = mapping.getAlias();
  83:       values[i] = globalView.get(name);
  84:       innerNames[i] = name;
  85:       outerNames[i] = mapping.getName();
  86:     }
  87:     setData(outerNames, values);
  88:   }
  89: 
  90:   protected ImportedVariablesDataRow(final ImportedVariablesDataRow dataRow)
  91:   {
  92:     super(dataRow);
  93:     outerNames = dataRow.outerNames;
  94:     innerNames = dataRow.innerNames;
  95:   }
  96: 
  97:   public ImportedVariablesDataRow advance (final GlobalMasterRow innerRow)
  98:           throws DataSourceException
  99:   {
 100:     final DataRow globalView = innerRow.getGlobalView();
 101:     final Object[] values = new Object[outerNames.length];
 102:     for (int i = 0; i < innerNames.length; i++)
 103:     {
 104:       final String name = innerNames[i];
 105:       values[i] = globalView.get(name);
 106:     }
 107:     final ImportedVariablesDataRow idr = new ImportedVariablesDataRow(this);
 108:     idr.setData(outerNames, values);
 109:     return idr;
 110:   }
 111: }