Re: Large finders on entity beans refactored

Large finders on entity beans refactored

I totally agree. We are told that if we read a large amt of data via entity beans, there will be too many entity objects in ready state. One can argue, that they will be the cached data for subsequent reads (lets’ say via find by primary key), however, to avoid dirty reads, the container calls the EJB load method, which defeats the purpose of caching

-----Original Message-----
From: Katz Guy [mailto:Guy_Katz@ICOMVERSE.COM]
Sent: Sunday, September 14, 2003 12:12 PM
To: J2EEPATTERNS-INTEREST@JAVA.SUN.COM
Subject: Large finders on entity beans refactored

Hi;
Going through the core patterns book.
There is a bad practice dedicated to not using finder methods when large result is expected but use a DAO instead.
My understanding is that the authors want to have a 'dual interface' for access to the same data, Modeling the data itself as entity beans yet using DAO for the search. Is this correct?

If so, wouldn't this be in contrast to resusability? Also, isnt this a good place to put your money on vendor container optimiations?

_______________________
Guy Katz
Software Architect, CAP-IFS
Comverse
guy.katz@comverse.com
+972 3 7663686

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Re: Large finders on entity beans refactored

Pradeep Kumar

2003-09-15