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: SinglePassReportProcessor.java,v 1.7 2007/04/01 18:49:25 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.flow;
032
033 import org.jfree.report.DataSourceException;
034 import org.jfree.report.ReportDataFactoryException;
035 import org.jfree.report.ReportProcessingException;
036
037 /**
038 * The abstract report processor implements a single-pass report processing
039 * schema. This is suitable for most raw exports and the streaming-liblayout
040 * export.
041 *
042 * @author Thomas Morgner
043 */
044 public abstract class SinglePassReportProcessor extends AbstractReportProcessor
045 {
046 public SinglePassReportProcessor()
047 {
048 }
049
050 protected abstract ReportTarget createReportTarget (ReportJob job)
051 throws ReportProcessingException;
052
053 /**
054 * Bootstraps the local report processing. This way of executing the report
055 * must be supported by *all* report processor implementations. It should
056 * fully process the complete report.
057 *
058 * @param job
059 * @throws ReportDataFactoryException
060 */
061 public void processReport (ReportJob job)
062 throws ReportDataFactoryException,
063 DataSourceException, ReportProcessingException
064 {
065 processReportRun(job, createReportTarget(job));
066 }
067 }