/**

     * Obtain a Hibernate Session, either from the current transaction or

     * a new one. The latter is only allowed if the

     * {@link org.springframework.orm.hibernate3.HibernateTemplate#setAllowCreate "allowCreate"}

     * setting of this bean's {@link #setHibernateTemplate HibernateTemplate} is "true".

     * <p><b>Note that this is not meant to be invoked from HibernateTemplate code

     * but rather just in plain Hibernate code.</b> Either rely on a thread-bound

     * Session or use it in combination with {@link #releaseSession}.

     * <p>In general, it is recommended to use HibernateTemplate, either with

     * the provided convenience operations or with a custom HibernateCallback

     * that provides you with a Session to work on. HibernateTemplate will care

     * for all resource management and for proper exception conversion.

     * @return the Hibernate Session

     * @throws DataAccessResourceFailureException if the Session couldn't be created

     * @throws IllegalStateException if no thread-bound Session found and allowCreate=false

     * @see org.springframework.orm.hibernate3.SessionFactoryUtils#getSession(SessionFactory, boolean)

     */

org.springframework.orm.hibernate3.support.HibernateDaoSupport#getSession()