Criteria criteria = fullTextSession.createCriteria(PollTO.class);
      criteria.createAlias("options", "options" JoinType.LEFT_OUTER_JOIN);
      criteria.createAlias("creationUser", "creationUser", JoinType.INNER_JOIN);

      ScrollableResults results = criteria.setFetchSize(batchSize).scroll(ScrollMode.FORWARD_ONLY);

      int index = 0;
      while (results.next()) {
         index++;
         fullTextSession.index(results.get(0)); // index each element
         if (index % batchSize == 0) {
            fullTextSession.flushToIndexes(); // apply changes to indexes
            fullTextSession.clear(); // clear since the queue is processed
         }
      }

@Entity
@Table(name = "poll", catalog = "poll")
@Indexed
public class PollTO implements Serializable {

       @Cascade({ CascadeType.SAVE_UPDATE })
   @OneToMany(fetch = FetchType.LAZY, mappedBy = "poll", orphanRemoval = true)
   @IndexedEmbedded
   public Collection<OptionTO> getOptions() {
      return options;
   }

@Entity
@Table(name = "option", catalog = "poll")
public class OptionTO implements Serializable, Comparable<OptionTO>

        @Column(name = "name", length = 50, nullable = false)
   @Field(analyze = Analyze.YES, store = Store.NO)
   public String getName() {
      return name;
   }