My 2c on this. Servlets should not be considered server side objects.
They represent the client code of an application, and just happen to have a
remote display. If you start to design your system with servlets as server
side only resources, you will find your self in trouble later on. Believe me.
Regards,
Greg
At 07:00 AM 2/25/99 -0600, you wrote:
>I agree with an earlier response to your email. Servlets and
>EJB serve different roles. EJB is an architecture for developing
>and deploying business services. Servlets are for developing
>and deploying an HTML user interface. I've heard that Sun is
>considering adding better support for EJB into the Java Server
>Pages (JSP) standard (which is usually, but not required to be,
>based on top of a servlet implementation).
>
>As for servlet/EJB engines... many of the application servers
>that exist today support both. BEA WebLogic and IBM WebSphere
>come to mind. I also read something recently that suggested
>that a future release of Oracle 8i will support servlets (it
>already supports EJB).
>
>
>[EMAIL PROTECTED] wrote:
>>
>> Hey guys,
>>
>> What are people's thoughts on Java servlets verses Enterprise
JavaBeans?
>> It seems to me that the two concepts overlap in very interesting ways (for
>> example, both are pooled, and intended for distributed, networked objects).
>
>Actually, servlets are *not* distributed objects. They exist only in
>the servlet engine process and they are used to service HTTP requests.
>And they are not necessarily pooled (usually, they are only pooled when
>the servlet implements SingleThreadModel... otherwise, a single
>re-entrant
>object is used).
>
>
>> I
>> see servlets as useful because they are request/response oriented, and more
>> lightweight to develop. Enterprise beans are general components, and gain a
>> full suite of middleware services.
>
>Having written servlets, I find that putting your business logic inside
>a servlet is---to use technical jargon---icky. You don't build good
>frameworks this way.
>
>
>> While these differences are important, it seems strange to me that we
>have
>> two seperate products in the Enterprise Java Platform that perform such
>similar
>> functions. Has anyone made a special lightweight enterprise bean type
>that was
>> a request/response oriented bean, aka a servlet? Has anyone built a servlet
>> engine on top of an EJB container?
>
>
>-eric
>
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----------------------------------------------
Greg Desmarais
Practice Manager, WebLogic
BEA Systems
(ph) 617-742-8045
(fax) 617-720-3598
(email) [EMAIL PROTECTED]
(www) http://www.beasys.com
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