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: ImportedVariablesDataRow.java,v 1.6 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
037 /**
038 * Creation-Date: 06.03.2006, 18:15:06
039 *
040 * @author Thomas Morgner
041 */
042 public class ImportedVariablesDataRow extends StaticDataRow
043 {
044 private String[] outerNames;
045 private String[] innerNames;
046
047 public ImportedVariablesDataRow(final GlobalMasterRow innerRow)
048 throws DataSourceException
049 {
050 final DataRow globalView = innerRow.getGlobalView();
051 final int cols = globalView.getColumnCount();
052 this.outerNames = new String[cols];
053 this.innerNames = outerNames;
054 final Object[] values = new Object[outerNames.length];
055 for (int i = 0; i < outerNames.length; i++)
056 {
057 outerNames[i] = globalView.getColumnName(i);
058 values[i] = globalView.get(i);
059 }
060 setData(outerNames, values);
061 }
062
063 /**
064 * Maps the inner-row into the outer data row. The parameter mapping's name
065 * represents the *outer* name and the innernames.
066 *
067 * @param innerRow
068 * @param parameterMappings
069 * @throws DataSourceException
070 */
071 public ImportedVariablesDataRow(final GlobalMasterRow innerRow,
072 final ParameterMapping[] parameterMappings)
073 throws DataSourceException
074 {
075 this.outerNames = new String[parameterMappings.length];
076 this.innerNames = new String[parameterMappings.length];
077 final Object[] values = new Object[parameterMappings.length];
078 final DataRow globalView = innerRow.getGlobalView();
079 for (int i = 0; i < parameterMappings.length; i++)
080 {
081 final ParameterMapping mapping = parameterMappings[i];
082 String name = mapping.getAlias();
083 values[i] = globalView.get(name);
084 innerNames[i] = name;
085 outerNames[i] = mapping.getName();
086 }
087 setData(outerNames, values);
088 }
089
090 protected ImportedVariablesDataRow(final ImportedVariablesDataRow dataRow)
091 {
092 super(dataRow);
093 outerNames = dataRow.outerNames;
094 innerNames = dataRow.innerNames;
095 }
096
097 public ImportedVariablesDataRow advance (final GlobalMasterRow innerRow)
098 throws DataSourceException
099 {
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 String name = innerNames[i];
105 values[i] = globalView.get(name);
106 }
107 ImportedVariablesDataRow idr = new ImportedVariablesDataRow(this);
108 idr.setData(outerNames, values);
109 return idr;
110 }
111 }