Ammentos Persistence Layer

Hello:

I'm testing Ammentos and get an error on load:

it.biobytes.ammentos.PersistenceException: java.lang.IllegalArgumentException

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package test;


import java.sql.*;

import javax.sql.DataSource;
import java.util.List;
import java.util.ListIterator;

import it.biobytes.ammentos.*;
import it.biobytes.ammentos.query.Query;
import it.biobytes.ammentos.query.SqlQueryFilter;
import static it.biobytes.ammentos.FieldTypeEnum.*;

public class TestAM {

public static void main(String args[]) {

Statement sentencia;
ResultSet resultado;

try {

DataSource ds = new BaseDataSource("com.mysql.jdbc.Driver","jdbc:mysql://localhost/cdcol","root","");

Ammentos.setDataSource( ds );


SqlQueryFilter sqlqf = new SqlQueryFilter( " titel > ? " );
sqlqf.setString( "0" );
Query qry = new Query( sqlqf );

/** here get error **/
List<Cds> lp = Ammentos.load( Cds.class, qry );
ListIterator<Cds> iter = lp.listIterator(lp.size());
while (iter.hasNext())
System.out.println(iter.next().getDescription());


} catch (Exception e) {
System.out.println(
e.getMessage() );
return;
}

}

}

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regards