var session = appComponent.sessionFactory.openSession()
    var transaction: Transaction? = null

    try {
        transaction = session.beginTransaction()
        session.get(MailPatternEntity::class.java, 1)
        transaction.commit()
    } catch (exception: RuntimeException) {
        transaction?.rollback()
        exception.printStackTrace()
    } finally {
        session.close()
    }

    session = appComponent.sessionFactory.openSession()

    try {
        transaction = session.beginTransaction()
        val entity = MailPatternEntity(1, htmlText = "some text")
        session.saveOrUpdate(entity)
        transaction.commit()
    } catch (exception: RuntimeException) {
        transaction?.rollback()
        exception.printStackTrace()
    } finally {
        session.close()
    }