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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2008 by Sun Microsystems, Inc.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: StarReportData.java,v $
* $Revision: 1.5 $
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org 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 version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
package com.sun.star.report.pentaho;
import com.sun.star.report.DataSource;
import org.jfree.report.DataSourceException;
import org.jfree.report.ReportData;
public class StarReportData implements ReportData
{
private final DataSource dataSource;
private int currentRow;
private final int rowCount;
public StarReportData(final DataSource dataSource)
throws com.sun.star.report.DataSourceException
{
if (dataSource == null)
{
throw new NullPointerException();
}
this.dataSource = dataSource;
this.currentRow = 0;
this.rowCount = dataSource.getRowCount();
}
public boolean setCursorPosition(final int row) throws DataSourceException
{
try
{
final boolean ret = dataSource.absolute(row);
if (ret)
{
currentRow = row;
}
return ret;
}
catch (com.sun.star.report.DataSourceException e)
{
throw new DataSourceException("Failed to move cursor", e);
}
}
public void close()
throws DataSourceException
{
try
{
dataSource.close();
}
catch (com.sun.star.report.DataSourceException e)
{
throw new DataSourceException("Failed to close datasource", e);
}
}
public int getCursorPosition()
throws DataSourceException
{
return currentRow;
}
/**
* This operation checks, whether a call to next will be likely to succeed. If
* there is a next data row, this should return true.
*
* @return
* @throws org.jfree.report.DataSourceException
*
*/
public boolean isAdvanceable() throws DataSourceException
{
return currentRow < rowCount;
}
public boolean next()
throws DataSourceException
{
try
{
if (dataSource.next())
{
currentRow += 1;
return true;
}
return false;
}
catch (com.sun.star.report.DataSourceException e)
{
throw new DataSourceException("Failed to move cursor", e);
}
}
public Object get(final int column)
throws DataSourceException
{
if (!isReadable())
{
throw new DataSourceException("Failed to query column.");
}
try
{
return dataSource.getObject(column + 1);
}
catch (com.sun.star.report.DataSourceException e)
{
throw new DataSourceException("Failed to query column.", e);
}
}
public int getColumnCount()
throws DataSourceException
{
try
{
return dataSource.getColumnCount();
}
catch (com.sun.star.report.DataSourceException e)
{
throw new DataSourceException("Failed to query column count.", e);
}
}
public String getColumnName(final int column)
throws DataSourceException
{
try
{
return dataSource.getColumnName(column + 1);
}
catch (com.sun.star.report.DataSourceException e)
{
throw new DataSourceException("Failed to query column name.", e);
}
}
public boolean isReadable() throws DataSourceException
{
return currentRow > 0 && rowCount > 0;
}
}
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