StringBridge ClassCastException

MarcusDidiusFalco · **Joined:** Sat Feb 16, 2008 3:09 pm **Posts:** 24

Hello
when I try to use a StringBridge in my project I see that the objectToString(Object obj) method is being called at least twice. One time with the Object which will be mapped to a String, and a second time with the resulting String, which leads to a ClassCastException.

Code:

public class SchluessellisteBridge implements StringBridge {

   @Override
   public String objectToString(Object obj) {
      if (obj == null) {
         return "";
      }
      Schluesselliste schluesselliste = (Schluesselliste) obj;
      return schluesselliste.getLangname();
   }

}

Code:

   @ManyToOne(fetch = FetchType.EAGER)
   @JoinColumn(name = "rv_entscheidungArt_id")
   @Field
   @FieldBridge(impl = SchluessellisteBridge.class)
   protected Rechtsvorgang entscheidungArt;

Even when I use the @DateBridge I get this behavior

Code:

   @Field(analyze = Analyze.NO)
   @DateBridge(resolution = Resolution.DAY)
   @Temporal(TemporalType.DATE)

Did I misunderstand the purpose of StringBridge????

I am using Hibernate Search 5.3 with Hibernate 4.3

Code:

            <property name="hibernate.search.default.directory_provider"
                value="filesystem" />
            <property name="hibernate.search.default.indexBase" value="/var/lucene/indexes" />

My entities are JPA Entities. For searching I use the Hibernate API like

Code:

List<Gesamtentscheidung> gesamtentscheidungen = null;
EntityManager em = PersistenceService.getInstance().getEntityManagerFactory().createEntityManager();
Session session = em.unwrap(Session.class);

FullTextSession fullTextSession = Search.getFullTextSession(session);


fullTextSession.beginTransaction();


QueryBuilder queryBuilder = fullTextSession.getSearchFactory().buildQueryBuilder().forEntity(Gesamtentscheidung.class).get();


org.apache.lucene.search.Query luceneQuery = queryBuilder
      .keyword()
      .onFields("betreff", "tatbestaende.aktenzeichen", "entscheidungArt")
      .matching(searchString)
      .createQuery();
org.hibernate.Query hibernateQuery = fullTextSession.createFullTextQuery(luceneQuery, Gesamtentscheidung.class);


gesamtentscheidungen = hibernateQuery.list();

fullTextSession.getTransaction().commit();

em.close();
return gesamtentscheidungen;

Gunnar · **Joined:** Sat Jan 24, 2009 12:46 pm **Posts:** 388

Hi,

Can you share the full stacktrace, please?

Thanks,

--Gunnar