Thursday, January 24, 2008

USP@ejb @@

-- USP ] %% xp
#1 CMR/CMP to automatically load/store related database tablesssss just like hibernate/JDO. THE real value of ejb in the eyes of Union Bank of Switzerland.

[[ ejb ]] book obviously treat CMP as the heart of ejb technology

#2 biz-tier cluster, behind the web tier cluster
THE real reason for oceanlake

-- USP ] theory
#1 XA. according to both [[ ejb ]] and Rod Johnson -- XA ie (declarative?) dist tx. Other solutions support tx or remoting(J2SE RMI) but not both.

#2 distributed objects?
corba
dcom
dotnet remoting?

#x MDB is the finest breed of EJB (Rod Johnson?) [[ ejb ]] author also singled out MDB as a top 5 j4EJB. Unique? not sure

#x ejb security? declarative? ejb fits like a glove if your biz logic are well-represented by security roles
[[ ejb ]] frequently mentions "transactional and security features" in one breath


====Well, almost Unique. U can call them "valuable features@ejb"

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http://www.linkedin.com/in/tanbin