Package org.springframework.orm.jpa

Examples of org.springframework.orm.jpa.EntityManagerHolder

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  }

  @Override
  protected void tearDown() throws Exception {
    EntityManagerFactory factory = this.getEntityManagerFactory();
    EntityManagerHolder holder = (EntityManagerHolder) this.unbind(factory);
    EntityManager manager = holder.getEntityManager();
    manager.close();
  }
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            if ( this.appScopedEntityManager != null && !this.appScopedEntityManager.isOpen() ) {
                throw new RuntimeException("Provided APP_SCOPED_ENTITY_MANAGER is not open");
            }
           
            if ( this.appScopedEntityManager == null ) {
                EntityManagerHolder emHolder = ( EntityManagerHolder ) TransactionSynchronizationManager.getResource( this.emf );
                if ( emHolder == null ) {
                    this.appScopedEntityManager = this.emf.createEntityManager();
                    emHolder =  new EntityManagerHolder( this.appScopedEntityManager );
                    TransactionSynchronizationManager.bindResource( emf,
                                                                    emHolder );                   
                } else {
                    this.appScopedEntityManager = emHolder.getEntityManager();
                }
               

                this.env.set( EnvironmentName.APP_SCOPED_ENTITY_MANAGER,
                              emHolder.getEntityManager() );
                internalAppScopedEntityManager = true;
            }         
        }
        return this.appScopedEntityManager;
    }
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            if ( this.appScopedEntityManager != null && !this.appScopedEntityManager.isOpen() ) {
                throw new RuntimeException( "Provided APP_SCOPED_ENTITY_MANAGER is not open" );
            }

            if ( this.appScopedEntityManager == null ) {
                EntityManagerHolder emHolder = (EntityManagerHolder) TransactionSynchronizationManager.getResource( this.emf );
                if ( emHolder == null ) {
                    this.appScopedEntityManager = this.emf.createEntityManager();
                    emHolder = new EntityManagerHolder( this.appScopedEntityManager );
                    TransactionSynchronizationManager.bindResource( this.emf,
                                                                    emHolder );
                    internalAppScopedEntityManager = true;
                } else {
                    this.appScopedEntityManager = emHolder.getEntityManager();
                }

                this.env.set( EnvironmentName.APP_SCOPED_ENTITY_MANAGER,
                              emHolder.getEntityManager() );
            }
        }
        if ( TransactionSynchronizationManager.isActualTransactionActive() ) {
            this.appScopedEntityManager.joinTransaction();
        }
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    }

    public void beginCommandScopedEntityManager() {
        EntityManager cmdScopedEntityManager = (EntityManager) env.get( EnvironmentName.CMD_SCOPED_ENTITY_MANAGER );
        if ( cmdScopedEntityManager == null || !cmdScopedEntityManager.isOpen() ) {
            EntityManagerHolder emHolder = (EntityManagerHolder) TransactionSynchronizationManager.getResource( "cmdEM" );
            EntityManager em = null;
            if ( emHolder == null ) {
                em = this.emf.createEntityManager();
                emHolder = new EntityManagerHolder( em );
                TransactionSynchronizationManager.bindResource( "cmdEM",
                                                                emHolder );
            } else {
                em = emHolder.getEntityManager();
            }
            this.env.set( EnvironmentName.CMD_SCOPED_ENTITY_MANAGER,
                          em );
        }
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    }
    else {
      logger.debug("Opening JPA EntityManager in OpenEntityManagerInViewFilter");
      try {
        EntityManager em = createEntityManager(emf);
        TransactionSynchronizationManager.bindResource(emf, new EntityManagerHolder(em));
      }
      catch (PersistenceException ex) {
        throw new DataAccessResourceFailureException("Could not create JPA EntityManager", ex);
      }
    }

    try {
      filterChain.doFilter(request, response);
    }

    finally {
      if (!participate) {
        EntityManagerHolder emHolder = (EntityManagerHolder)
            TransactionSynchronizationManager.unbindResource(emf);
        logger.debug("Closing JPA EntityManager in OpenEntityManagerInViewFilter");
        EntityManagerFactoryUtils.closeEntityManager(emHolder.getEntityManager());
      }
    }
  }
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    }
    else {
      logger.debug("Opening JPA EntityManager in OpenEntityManagerInViewInterceptor");
      try {
        EntityManager em = createEntityManager();
        TransactionSynchronizationManager.bindResource(getEntityManagerFactory(), new EntityManagerHolder(em));
      }
      catch (PersistenceException ex) {
        throw new DataAccessResourceFailureException("Could not create JPA EntityManager", ex);
      }
    }
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      else {
        request.removeAttribute(participateAttributeName, WebRequest.SCOPE_REQUEST);
      }
    }
    else {
      EntityManagerHolder emHolder = (EntityManagerHolder)
          TransactionSynchronizationManager.unbindResource(getEntityManagerFactory());
      logger.debug("Closing JPA EntityManager in OpenEntityManagerInViewInterceptor");
      EntityManagerFactoryUtils.closeEntityManager(emHolder.getEntityManager());
    }
  }
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     * 打开日志数据库em
     * @param entityManagerFactory
     */
    private static void openEntityManagerForLog(EntityManagerFactory entityManagerFactory){       
        EntityManager em = entityManagerFactory.createEntityManager();
        TransactionSynchronizationManager.bindResource(entityManagerFactory, new EntityManagerHolder(em));
        LOG.info("打开ForLog实体管理器");
    }
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    /**
     * 关闭日志数据库em
     * @param entityManagerFactory
     */
    private static void closeEntityManagerForLog(EntityManagerFactory entityManagerFactory){
        EntityManagerHolder emHolder = (EntityManagerHolder)TransactionSynchronizationManager.unbindResource(entityManagerFactory);
        LOG.info("关闭ForLog实体管理器");
        EntityManagerFactoryUtils.closeEntityManager(emHolder.getEntityManager());
    }
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            }
        }
    }
    private void openEntityManager(){       
        EntityManager em = entityManagerFactory.createEntityManager();
        TransactionSynchronizationManager.bindResource(entityManagerFactory, new EntityManagerHolder(em));
        LOG.info("打开实体管理器");
    }
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