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: NamedStaticReportDataFactory.java,v 1.2 2007/04/01 18:49:26 taqua Exp $
027 * ------------
028 * (C) Copyright 2000-2005, by Object Refinery Limited.
029 * (C) Copyright 2005-2007, by Pentaho Corporation.
030 */
031
032 package org.jfree.report.modules.data.beans;
033
034 import java.util.HashMap;
035
036 import org.jfree.report.DataSet;
037 import org.jfree.report.ReportData;
038 import org.jfree.report.ReportDataFactoryException;
039 import org.jfree.resourceloader.ResourceKey;
040
041 /**
042 * Creation-Date: Jan 12, 2007, 2:16:00 PM
043 *
044 * @author Thomas Morgner
045 */
046 public class NamedStaticReportDataFactory extends StaticReportDataFactory
047 {
048 private ResourceKey contentBase;
049 private HashMap querymappings;
050
051 public NamedStaticReportDataFactory()
052 {
053 querymappings = new HashMap();
054 }
055
056 public void setQuery(String name, String queryString)
057 {
058 if (queryString == null)
059 {
060 querymappings.remove(name);
061 }
062 else
063 {
064 querymappings.put(name, queryString);
065 }
066 }
067
068 /**
069 * Queries a datasource. The string 'query' defines the name of the query. The
070 * Parameterset given here may contain more data than actually needed.
071 * <p/>
072 * The dataset may change between two calls, do not assume anything!
073 *
074 * @param query
075 * @param parameters
076 * @return
077 */
078 public ReportData queryData(final String query, final DataSet parameters)
079 throws ReportDataFactoryException
080 {
081 if (query == null)
082 {
083 throw new NullPointerException("Query is null.");
084 }
085 final String realQuery = getQuery(query);
086 if (realQuery == null)
087 {
088 throw new ReportDataFactoryException("Query '" + query + "' is not recognized.");
089 }
090 return super.queryData(realQuery, parameters);
091 }
092
093 public String getQuery(String name)
094 {
095 return (String) querymappings.get(name);
096 }
097
098 public String[] getQueryNames()
099 {
100 return (String[]) querymappings.keySet().toArray(
101 new String[querymappings.size()]);
102 }
103
104 public ResourceKey getContentBase()
105 {
106 return contentBase;
107 }
108
109 public void setContentBase(final ResourceKey contentBase)
110 {
111 this.contentBase = contentBase;
112 }
113 }