@Override
    void merge(Publisher oldEntity, Publisher newEntity) {
        if(!oldEntity.getName().equals(newEntity.getName())) oldEntity.setName(newEntity.getName());
        if(!oldEntity.getCountryCode().equals(newEntity.getCountryCode())) oldEntity.setCountryCode(newEntity.getCountryCode());
        if(!oldEntity.getPostCode().equals(newEntity.getPostCode())) oldEntity.setPostCode(newEntity.getPostCode());
    }