Examples of javax.persistence.EntityManager.merge()

javax.persistence.EntityManager.merge()
Merge the state of the given entity into the current persistence context. @param entity @return the instance that the state was merged to @throws IllegalStateException if this EntityManager has been closed @throws IllegalArgumentException if instance is not anentity or is a removed entity @throws TransactionRequiredException if invoked on acontainer-managed entity manager of type PersistenceContextType.TRANSACTION and there is no transaction.

      tx.begin();
      if (ac.getCategoryId() == null) {
        session.persist(ac);
          } else {
            if (!session.contains(ac)) {
              session.merge(ac);
          }
      }
            
      tx.commit();
      PersistenceSessionUtil.closeSession(idf);

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      Object idf = PersistenceSessionUtil.createSession();
      EntityManager session = PersistenceSessionUtil.getSession();
      EntityTransaction tx = session.getTransaction();
      tx.begin();
      
      flvRecording = session.merge(flvRecording);
      Long flvRecordingId = flvRecording.getFlvRecordingId();
      
      tx.commit();
      PersistenceSessionUtil.closeSession(idf);

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      Object idf = PersistenceSessionUtil.createSession();
      EntityManager session = PersistenceSessionUtil.getSession();
      EntityTransaction tx = session.getTransaction();
      tx.begin();
      
      flvRecording = session.merge(flvRecording);
      Long flvRecordingId = flvRecording.getFlvRecordingId();
      
      tx.commit();
      PersistenceSessionUtil.closeSession(idf);

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      Object idf = PersistenceSessionUtil.createSession();
      EntityManager session = PersistenceSessionUtil.getSession();
      EntityTransaction tx = session.getTransaction();
      tx.begin();
      
      flvRecording = session.merge(flvRecording);
      Long flvRecordingId = flvRecording.getFlvRecordingId();
      
      tx.commit();
      PersistenceSessionUtil.closeSession(idf);

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      tx.begin();
      if (fId.getFlvRecordingId() == 0) {
        session.persist(fId);
          } else {
            if (!session.contains(fId)) {
              session.merge(fId);
          }
      }
      session.flush();
      tx.commit();
      PersistenceSessionUtil.closeSession(idf);

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      tx.begin();
      if (fId.getFlvRecordingId() == 0) {
        session.persist(fId);
          } else {
            if (!session.contains(fId)) {
              session.merge(fId);
          }
      }
      session.flush();
      tx.commit();
      PersistenceSessionUtil.closeSession(idf);

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      tx.begin();
      if (fId.getFlvRecordingId() == 0) {
        session.persist(fId);
          } else {
            if (!session.contains(fId)) {
              session.merge(fId);
          }
      }
      session.flush();
      tx.commit();
      PersistenceSessionUtil.closeSession(idf);

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      tx.begin();
      if (fId.getFlvRecordingId() == 0) {
        session.persist(fId);
          } else {
            if (!session.contains(fId)) {
              session.merge(fId);
          }
      }
      session.flush();
      tx.commit();
      PersistenceSessionUtil.closeSession(idf);

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      tx.begin();
      if (fId.getFlvRecordingId() == 0) {
        session.persist(fId);
          } else {
            if (!session.contains(fId)) {
              session.merge(fId);
          }
      }
      session.flush();
      tx.commit();
      PersistenceSessionUtil.closeSession(idf);

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      tx.begin();
      if (fId.getFlvRecordingId() == 0) {
        session.persist(fId);
          } else {
            if (!session.contains(fId)) {
              session.merge(fId);
          }
      }
      session.flush();
      tx.commit();
      PersistenceSessionUtil.closeSession(idf);

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