RedirectionApiUtils.java 文件源码

public PortEntity txPortEntityByElementId(String elementId) {
    CriteriaBuilder cb = this.em.getCriteriaBuilder();

    CriteriaQuery<PortEntity> q = cb.createQuery(PortEntity.class);
    Root<PortEntity> r = q.from(PortEntity.class);
    q.where(cb.equal(r.get("elementId"), elementId));

    try {
        return this.em.createQuery(q).getSingleResult();
    } catch (Exception e) {
        LOG.error("Finding Network Element {} ", elementId, e);
        return null;
    }
}