Java Notes
In JDK5, Annotation is introduced. Annotation just simplify programming, not for performance raising DD(deployment description) over Annotation ...
Websphere Deployment Management
Webshphere Server: vertical clustering, multi-server in SMP(symmetric multi-processor) horizontal clustering, multi physical server
Database sharding and table partitioning rules
##Sub database and sub table Taken from: http://rdc.taobao.com/team/jm/archives/590 There are usually several goals: Data discreteness, data dis...
Java EE 5 Programming Model
From http://www.ibm.com/developerworks/cn/websphere/library/techarticles/0809_alcott/0809_alcott.html Introduce IOC and Annotation programming mo...
Websphere performance tuning
JVM Heapsize -Xms -Xmx 2. When will GC collect Heap Fragmentation 3 Web Container ThreadPool Buffer Timeout Keep-ali...
Websphere trivia
Use the Websphere product installation information command ‘updateInfo’ to search for and view the product properties file./properties/v...
Interesting Java classes
WeakHashMap Function: When accessing this map, all entries will be checked. If a key is not reachable (a concept in GC), the entry will be purged...
Database Design
Sharding(Shared Nothing), A way to achieve scale out. Its main purpose is to break through the I/O capability limitations of single node data...
Common sorting algorithms in Java
Taken from< http://deng5566.iteye.com/blog/678817 >For self-study only. Sorting Algorithm Review (Java Implementation) (1): Insertion, Bubbli...
Javascript Notes
Regular expressions 1234//删除开头和结尾所有的空格 function trim(str) { return str.replace(/(^\s+|\s+$)/g,''); } 1234567注： ^ 开头 $ 结尾 ...