>Ahi Satapathy wrote:
>> So when EJB should be used ? what should be the factor one should consider
>> before going to implement something with EJB ? If the site is not
>> transactional, has no authorization security needs, and is read only,
should
>> one go for simple Java Objects and use Servlets with direct JDBC access ??
At 05:13 PM 2/20/00 -0600, Richard Monson-Haefel wrote:
>In a word, "maybe". You need an experienced architect (consult your
>physician) to review your system and make a recommendation. Most
>high volume sites (Amazon, eToys, et.) that have a lot of read only
High volume as in number of concurrent visitors or number of
transactions? Or high volume as in page throughput or http (or
socket) throughput?
>navigation and no transaction needs for the reads, should be implemented
>with something other then EJB - I like servlets. BUT, the purchasing
Theoretically EJB can be used for high-volume sites like an electronic
trading system. Architecturally, as part of an App Server product, EJB
should not be fundamentally slower than Servlet/JDBC/JavaClasses. The
vendor app server product should be able to scale much better than a
home-grown solution. If the home-grown solution is superior... then I
want to get in on the IPO... ;)
>of goods and services on these sites should be implemented with EJB via
Servlets.
Actually, are there 'rules of the road' for this stuff? What are the
heuristics for choosing a AppServer/EJB(et al) over a WebServer/Servlets?
Frank G.
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