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.

      EntityManager session = PersistenceSessionUtil.getSession();
      EntityTransaction tx = session.getTransaction();
      tx.begin();
      // CriteriaBuilder crit = session.getCriteriaBuilder();


      session.merge(ng);


      tx.commit();
      PersistenceSessionUtil.closeSession(idf);


    } catch (Exception ex2) {

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      Object idf = PersistenceSessionUtil.createSession();
      EntityManager session = PersistenceSessionUtil.getSession();
      EntityTransaction tx = session.getTransaction();
      tx.begin();
      rOrganisation = session.merge(rOrganisation);
      long returnId = rOrganisation.getRooms_organisation_id();
      tx.commit();
      PersistenceSessionUtil.closeSession(idf);
      return returnId;

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      EntityManager session = PersistenceSessionUtil.getSession();
      EntityTransaction tx = session.getTransaction();
      tx.begin();
      // CriteriaBuilder crit = session.getCriteriaBuilder();


      session.merge(ng);


      tx.commit();
      PersistenceSessionUtil.closeSession(idf);


    } catch (Exception ex2) {

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

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      if (flvRecordingMetaDelta.getFlvRecordingMetaDataId() == 0) {
        session.persist(flvRecordingMetaDelta);
          } else {
            if (!session.contains(flvRecordingMetaDelta)) {
              session.merge(flvRecordingMetaDelta);
          }
      }
      
      tx.commit();
      PersistenceSessionUtil.closeSession(idf);

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      tx.begin();
      if (invitation.getInvitations_id() == null) {
        session.persist(invitation);
          } else {
            if (!session.contains(invitation)) {
              session.merge(invitation);
          }
      }
      tx.commit();
      PersistenceSessionUtil.closeSession(idf);    
    } catch (Exception ex2) {

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        inv.setValidTo(appointmentend);
        if (inv.getInvitations_id() == null) {
          session.persist(inv);
            } else {
              if (!session.contains(inv)) {
                session.merge(inv);
            }
        }
      }
      
      tx.commit();

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

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      if (gm.getMeetingMemberId() == null) {
        session.persist(gm);
          } else {
            if (!session.contains(gm)) {
              gm = session.merge(gm);
          }
      }


      session.flush();
      tx.commit();

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      Object idf = PersistenceSessionUtil.createSession();
      EntityManager session = PersistenceSessionUtil.getSession();
      EntityTransaction tx = session.getTransaction();
      tx.begin();
      
      gm = session.merge(gm);
      session.flush();
      Long group_member_id = gm.getMeetingMemberId();
      
      tx.commit();
      PersistenceSessionUtil.closeSession(idf);

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