1. 利用apache common-pool实现一个Session Pool（非常简单）
2. 如何避免代码中的returnObject()?
xxx() invoke
------ PoolProxy - PoolInterceptor SessionPool
borrowObject()
-------------
<---------------
xxx() Session (be borr
owed)
------------------------------
returnObject()
--------------
--
RMI design
xxx() invoke Serialize call to remote
--- ClientProxy - RmiInterceptor -----------------
find ServerProxy, xxx() xxx()
RmiServer-------------- ServerProxy -....ServerObject
Method Cache design
1.用HashMap做cache
xxx() invoke
--- Proxy - MCInterceptor
1. get Attribute @timeout
2. 用object[]作为key，看cache中的
结果是否超时
3. 如果超时 invoke
---------------- NextInterceptor...
4. 如果不超，返回被cache的结果
Draw activity UML diagram:
1. 实现绘图模块
xxx() invoke
- Proxy - ActivityIntercpetor
draw xxx()
-------------绘图模块
invoke
-------------------------NextInterceptor...
Persistence and descriptive transaction
1. Persistence直接使用hibernate
xxx invoke
--ProxyHibernateInterceptor
1. 取得@tx，应该为required,requiresnew
,supports,notsupported中的一种
2. 判断当前的transaction状态
3. 决定本次调用是否在transaction当中
Folder-Node关系的复用
getFolder() getFolder() invoke getFolder()
-UserProxy ---- NodeProxy SideEntityInterceptor Node
return Folder
<-----
根据Folder创建Group proxy
返回GroupProxy
<----
in the code, like this:
...
User user = userFactory.find("guty"); //user is actually a proxy
Group group = (Group)((Node)user).getFolder();
Java, java, J2SE, j2se, J2EE, j2ee, J2ME, j2me, ejb, ejb3, JBOSS, jboss, spring, hibernate, jdo, struts, webwork, ajax, AJAX, mysql, MySQL, Oracle, Weblogic, Websphere, scjp, scjd
标签：
