Source for org.jfree.report.flow.SinglePassReportProcessor

   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: SinglePassReportProcessor.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.flow;
  32: 
  33: import org.jfree.report.DataSourceException;
  34: import org.jfree.report.ReportDataFactoryException;
  35: import org.jfree.report.ReportProcessingException;
  36: 
  37: /**
  38:  * The abstract report processor implements a single-pass report processing
  39:  * schema. This is suitable for most raw exports and the streaming-liblayout
  40:  * export.
  41:  *
  42:  * @author Thomas Morgner
  43:  */
  44: public abstract class SinglePassReportProcessor extends AbstractReportProcessor
  45: {
  46:   public SinglePassReportProcessor()
  47:   {
  48:   }
  49: 
  50:   protected abstract ReportTarget createReportTarget (ReportJob job)
  51:           throws ReportProcessingException;
  52: 
  53:   /**
  54:    * Bootstraps the local report processing. This way of executing the report
  55:    * must be supported by *all* report processor implementations. It should
  56:    * fully process the complete report.
  57:    *
  58:    * @param job
  59:    * @throws ReportDataFactoryException
  60:    */
  61:   public void processReport (final ReportJob job)
  62:           throws ReportDataFactoryException,
  63:           DataSourceException, ReportProcessingException
  64:   {
  65:     processReportRun(job, createReportTarget(job));
  66:   }
  67: }