ProducerConverter

package ch.myWinery.converter;

import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.convert.Converter;
import javax.faces.convert.ConverterException;
import javax.faces.convert.FacesConverter;

import ch.myWinery.business.Winery;
import ch.myWinery.model.Producer;
import ch.myWinery.persistence.WineryDB;

@FacesConverter(value="ch.myWinery.converter.ProducerConverter")
public class ProducerConverter implements Converter  {

    private WineryDB dbManager = WineryDB.getInstance();

    @Override
    public Object getAsObject(FacesContext context, UIComponent component, String submittedValue) {
        long prodId;
        try {
            prodId = Long.parseLong(submittedValue);
        }
        catch (NumberFormatException exception) {
            throw new ConverterException();

        }
        return dbManager.getInstance().addProducer(producer);
    }

    @Override
    public String getAsString(FacesContext arg0, UIComponent arg1, Object arg2) {
        // TODO Auto-generated method stub
        return null;
    }

}