Hi!
I'm trying to write a custom converter for passing my objects as
GET-parameter...
But I still can't get them to work!
has anybody an example of doing this???
here's my code:
| @Name("categoryConverter")
| @Stateless
| public class CategoryConverterBean implements
javax.faces.convert.Converter, CategoryConverter {
|
| @PersistenceContext
| private EntityManager entityManager;
|
| public Object getAsObject(FacesContext arg0, UIComponent arg1, String
str)
| throws ConverterException {
| try {
| long id = Long.parseLong(str);
|
| return entityManager.createQuery("Select c from
Category where c.id = :id")
| .setParameter("id", id)
| .getSingleResult();
|
| } catch (Exception e) {
| throw new ConverterException();
| }
|
| }
|
| public String getAsString(FacesContext arg0, UIComponent arg1, Object
obj)
| throws ConverterException {
| if (obj instanceof Category) {
| return Long.toString(((Category)obj).getId());
| } else
| throw new ConverterException();
| }
|
|
| }
|
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