http://stackoverflow.com/questions/2738671/please-explain-nhibernate-hilo
http://stackoverflow.com/questions/282099/whats-the-hi-lo-algorithm
http://nhforge.org/wikis/howtonh/creating-a-custom-id-generator-for-nhibernate.aspx
please read the source code of SequenceHiLoGenerator in the NHibernate
understanding Nhibernate Hilo,布布扣,bubuko.com
原文：http://www.cnblogs.com/malaikuangren/p/3581087.html