Package org.jfree.report.modules.data.beans

Source Code of org.jfree.report.modules.data.beans.NamedStaticReportDataFactory

/**
* ========================================
* JFreeReport : a free Java report library
* ========================================
*
* Project Info:  http://reporting.pentaho.org/
*
* (C) Copyright 2000-2007, by Object Refinery Limited, Pentaho Corporation and Contributors.
*
* This library is free software; you can redistribute it and/or modify it under the terms
* of the GNU Lesser General Public License as published by the Free Software Foundation;
* either version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* ------------
* $Id: NamedStaticReportDataFactory.java 6659 2008-12-02 15:35:06Z tmorgner $
* ------------
* (C) Copyright 2000-2005, by Object Refinery Limited.
* (C) Copyright 2005-2007, by Pentaho Corporation.
*/

package org.jfree.report.modules.data.beans;

import java.util.HashMap;

import org.jfree.report.DataSet;
import org.jfree.report.ReportData;
import org.jfree.report.ReportDataFactoryException;
import org.pentaho.reporting.libraries.resourceloader.ResourceKey;

/**
* Creation-Date: Jan 12, 2007, 2:16:00 PM
*
* @author Thomas Morgner
*/
public class NamedStaticReportDataFactory extends StaticReportDataFactory
{
  private ResourceKey contentBase;
  private HashMap querymappings;

  public NamedStaticReportDataFactory()
  {
    querymappings = new HashMap();
  }

  public void setQuery(String name, String queryString)
  {
    if (queryString == null)
    {
      querymappings.remove(name);
    }
    else
    {
      querymappings.put(name, queryString);
    }
  }

  /**
   * Queries a datasource. The string 'query' defines the name of the query. The
   * Parameterset given here may contain more data than actually needed.
   * <p/>
   * The dataset may change between two calls, do not assume anything!
   *
   * @param query
   * @param parameters
   * @return
   */
  public ReportData queryData(final String query, final DataSet parameters)
          throws ReportDataFactoryException
  {
    if (query == null)
    {
      throw new NullPointerException("Query is null.");
    }
    final String realQuery = getQuery(query);
    if (realQuery == null)
    {
      throw new ReportDataFactoryException("Query '" + query + "' is not recognized.");
    }
    return super.queryData(realQuery, parameters);
  }

  public String getQuery(String name)
  {
    return (String) querymappings.get(name);
  }

  public String[] getQueryNames()
  {
    return (String[]) querymappings.keySet().toArray(
            new String[querymappings.size()]);
  }

  public ResourceKey getContentBase()
  {
    return contentBase;
  }

  public void setContentBase(final ResourceKey contentBase)
  {
    this.contentBase = contentBase;
  }
}
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