/*
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* This program 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.
*
* Copyright (c) 2001 - 2009 Object Refinery Ltd, Pentaho Corporation and Contributors.. All rights reserved.
*/
package org.pentaho.reporting.engine.classic.core.states;
import java.io.Serializable;
import java.util.HashMap;
import org.pentaho.reporting.engine.classic.core.ReportProcessingException;
import org.pentaho.reporting.engine.classic.core.SubReport;
/**
* Todo: Document Me
*
* @author Thomas Morgner
*/
public class SubReportStorage implements Serializable
{
private HashMap storage;
public SubReportStorage()
{
storage = new HashMap();
}
public void store(final FunctionStorageKey key,
final SubReport subReport)
throws ReportProcessingException
{
if (key == null)
{
throw new NullPointerException();
}
if (subReport == null)
{
throw new NullPointerException();
}
try
{
// derive would regenerate instance-IDs, which is not advisable.
storage.put(key, subReport.clone());
}
catch (CloneNotSupportedException cne)
{
throw new ReportProcessingException("Failed to store subreport", cne);
}
}
public SubReport restore(final FunctionStorageKey key)
throws ReportProcessingException
{
if (key == null)
{
throw new NullPointerException();
}
final SubReport subReport = (SubReport) storage.get(key);
if (subReport == null)
{
return null;
}
try
{
// derive would regenerate instance-IDs, which is not advisable.
return (SubReport) subReport.clone();
}
catch (CloneNotSupportedException e)
{
throw new ReportProcessingException("Failed to restore subreport", e);
}
}
public boolean contains(final FunctionStorageKey key)
{
if (key == null)
{
throw new NullPointerException();
}
return storage.containsKey(key);
}
}