doctrine / orm

     * @throws ORMInvalidArgumentException

     * @throws ORMException

     */

    public function persist($entity)

    {

        if ( ! is_object($entity)) {

            throw ORMInvalidArgumentException::invalidObject('EntityManager#persist()', $entity);

        }

        $this->errorIfClosed();

        $this->unitOfWork->persist($entity);

    }

    /**

     * Removes an entity instance.

     * @throws ORMInvalidArgumentException

     * @throws ORMException

     */

    public function remove($entity)

    {

        if ( ! is_object($entity)) {

            throw ORMInvalidArgumentException::invalidObject('EntityManager#remove()', $entity);

        }

        $this->errorIfClosed();

        $this->unitOfWork->remove($entity);

    }

    /**

     * Refreshes the persistent state of an entity from the database,

     * @throws ORMInvalidArgumentException

     * @throws ORMException

     */

    public function refresh($entity)

    {

        if ( ! is_object($entity)) {

            throw ORMInvalidArgumentException::invalidObject('EntityManager#refresh()', $entity);

        }

        $this->errorIfClosed();

        $this->unitOfWork->refresh($entity);

    }

    /**

     * Detaches an entity from the EntityManager, causing a managed entity to

     * @throws ORMInvalidArgumentException

     * @throws ORMException

     */

    public function merge($entity)

    {

        if ( ! is_object($entity)) {

            throw ORMInvalidArgumentException::invalidObject('EntityManager#merge()', $entity);

        }

        $this->errorIfClosed();

        return $this->unitOfWork->merge($entity);

    }

    /**

     * {@inheritDoc}