Scheduled Java EE 6 Database Maintenance (Lifetime)

I am new to Java EE 6, so I apologize if the answer to this question is obvious. I have a task that needs to be done hourly to restore the Solr index from the database. I also want the rebuild to happen when the application is deployed. My gut instinct is that this should work:

@Singleton
@Startup
public class Rebuilder {
  @Inject private ProposalDao proposalDao;
  @Inject private SolrServer  solrServer;

  @Schedule(hour="*", minute="0", second="0")
  public void rebuildIndex() {
    // do the rebuild here
  }
}

Since I use myBatis, I wrote this producer:

public class ProposalSessionProvider {
  private static final String CONFIGURATION_FILE = "...";

  static {
    try {
      sessFactory = new SqlSessionFactoryBuilder().build(
        Resources.getResourceAsReader(CONFIGURATION_FILE));
    }
    catch (IOException ex) {
      throw new RuntimeException("Error configuring MyBatis: " + ex.getMessage(), ex);
    }
  }

  @Produces
  public ProposalsDao openSession() {
    log.info("Connecting to the database");
    session = sessFactory.openSession();
    return session.getMapper(ProposalsDao.class);
  }
}

So, I have three problems:

• What is the way to start rebuilding during deployment? A @PostConstructmethod?
• ? myBatis, , , Java EE. , @Singleton, , @Startup @Stateless bean?
• Rebuilder ? , @PostConstruct .

, . .