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: TableReportDataFactory.java 3525 2007-10-16 11:43:48Z 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; 032 033 import java.util.HashMap; 034 import javax.swing.table.TableModel; 035 036 /** 037 * Creation-Date: 21.02.2006, 17:59:32 038 * 039 * @author Thomas Morgner 040 */ 041 public class TableReportDataFactory implements ReportDataFactory, Cloneable 042 { 043 private HashMap tables; 044 045 public TableReportDataFactory() 046 { 047 this.tables = new HashMap(); 048 } 049 050 public TableReportDataFactory(final String name, final TableModel tableModel) 051 { 052 this(); 053 addTable(name, tableModel); 054 } 055 056 public void addTable(final String name, final TableModel tableModel) 057 { 058 tables.put(name, tableModel); 059 } 060 061 public void removeTable(final String name) 062 { 063 tables.remove(name); 064 } 065 066 /** 067 * Queries a datasource. The string 'query' defines the name of the query. The 068 * Parameterset given here may contain more data than actually needed. 069 * <p/> 070 * The dataset may change between two calls, do not assume anything! 071 * 072 * @param query the name of the table. 073 * @param parameters are ignored for this factory. 074 * @return the report data or null. 075 */ 076 public ReportData queryData(final String query, final DataSet parameters) 077 throws ReportDataFactoryException 078 { 079 final TableModel model = (TableModel) tables.get(query); 080 if (model == null) 081 { 082 return null; 083 } 084 085 return new TableReportData(model); 086 } 087 088 public void open() 089 { 090 091 } 092 093 public void close() 094 { 095 096 } 097 098 /** 099 * Derives a freshly initialized report data factory, which is independend of 100 * the original data factory. Opening or Closing one data factory must not 101 * affect the other factories. 102 * 103 * @return 104 */ 105 public ReportDataFactory derive() 106 { 107 try 108 { 109 return (ReportDataFactory) clone(); 110 } 111 catch (CloneNotSupportedException e) 112 { 113 throw new IllegalStateException("Clone should not fail."); 114 } 115 } 116 117 public Object clone () throws CloneNotSupportedException 118 { 119 final TableReportDataFactory dataFactory = (TableReportDataFactory) super.clone(); 120 dataFactory.tables = (HashMap) tables.clone(); 121 return dataFactory; 122 } 123 }