/*!
* 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) 2002-2013 Pentaho Corporation.. All rights reserved.
*/
package org.pentaho.reporting.engine.classic.core;
import javax.swing.table.TableModel;
/**
* A datafactory that allows to use a tablemodel passed in as a parameter as primary report-datasource.
*
* @author Thomas Morgner
*/
public class ExternalDataFactory extends AbstractDataFactory {
private static final String[] EMPTY_NAMES = new String[0];
public ExternalDataFactory() {
}
public TableModel queryData( final String query, final DataRow parameters ) throws ReportDataFactoryException {
final Object o = parameters.get( query );
if ( o instanceof TableModel ) {
return (TableModel) o;
}
throw new ReportDataFactoryException( "The parameter given was no valid datasource: " + query );
}
public DataFactory derive() {
return this;
}
public void close() {
}
public boolean isQueryExecutable( final String query, final DataRow parameters ) {
final Object o = parameters.get( query );
return o instanceof TableModel;
}
public String[] getQueryNames() {
return EMPTY_NAMES;
}
}