Hibernate Cache
get/load区别 如果记录存在，get返回对象（或代理对象）；否则返回null。 如果记录存在，load返回对象；否则返回 NotObjectFoundException 2.hibernate Cache 2.1 一级缓存，在当前session内 2.2 Query Cach...
Eclipse + Java SE 6 快速建立web service
from https://www6.software.ibm.com/developerworks/cn/education/webservices/ws-eclipse-javase1/section2.html 1. new Java Project make sure JRE is...
WPF
WPF trial: http://www.ibm.com/developerworks/downloads/ws/wpf/index.html?S_TACT=105AGX28&S_CMP=DLMAIN http://www-10.lotus.com/ldd/pfwiki.nsf RA...
Websphere Deployment Management
Webshphere Server: vertical clustering, multi-server in SMP(symmetric multi-processor) horizontal clustering, multi physical server
WPF Knowledge
import model/linked model/container model 1.1 Imported Model Builder: Host Model and target Model share the same WebApp, target model a...
Java Notes
In JDK5, Annotation is introduced. Annotation just simplify programming, not for performance raising DD(deployment description) over Annotation ...
NFR
Non functional Requirement(NFR): sizing estimatation of app: register user -> concurrent user -> active concurrent user active concurrent...
SOA notes
two feature for SOA 1.1 reuse existing IT asset(EIS) 1.2 loosely coupling, integration 2. product HP BTO(Business Tech. Optimizer) HP SOA gov...
数据库分库分表规则
分库分表 摘自: http://rdc.taobao.com/team/jm/archives/590 一般有几个目标： 数据离散性，数据分布到多个库，多个表中 mod, round robin, dayofweek,dayofMonth 避免热点数据在一个数据库库表上 扩容...
需求管理是要分层次的
客户中不同角色对需求有不同层次的理解： 1. 管理层可能不了解具体的业务，但会提出一些大的方向。 2. 中层负责具体的业务逻辑，这是比较容易出错的 3. 操作人员理解的主要是界面，从这里得到的需求可能比较片面 理清需求的层次后，我们需要把握哪些需求是最重要的。