技术生活杂烩-迟到的博客

摘要： 使用Terracotta的人很关心它如何收费，但是官网并没有明确如何收费。只是讲划分了开源，ES，FX三大类。Of all of Terracotta's commercial products, the Enterprise Suite provides the ultimate flexibility. It is designed for customers who have the need to solve multiple different problems within their applications. As such it includes the core Terra 阅读全文

摘要： 乐观锁：乐观锁示例http://xmuzyq.javaeye.com/blog/295639方式1.JDBC通过下面的语句：Select a.version....from Account as a where (where condition..)Update Account set version = version+1.....(another field) where version =?...(another contidition)方式2.HIBERNATE：public class Account{ Long id ; ....... @Version //也可以采用XML文件进 阅读全文