I think this has become a bit confused. I think he was trying to
advocate build everything, i.e. don't buy/use an EJB container. You seem
to be advocating buy/use something and build the rest. I'm saying
the new IT seems to be getting interested in "integration" where
they buy virtually everything, fire the developers and hire/retain
admins/configurators. This means from the perspective of the developer,
there is no end to the IT recession. Could sort of call it the "reuse
backfired syndrome" if you want.


>From: Dmitri Colebatch <[EMAIL PROTECTED]>
>Reply-To: Dmitri Colebatch <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED]
>Subject: Re: the truth about entity beans
>Date: Sun, 13 Oct 2002 10:27:22 +1000
>
>Hey I'm more than happy to develop... in fact thats what I enjoy doing most
>(what do you think I'm doing right now).  But there's no point me
>developing
>something, and you developing the same thing, and us both facing the same
>problems.  Why dont we get together, and write it together, that way we
>both
>benefit.  Now, suppose that we start to do this, but we first do the right
>thing and stfw and find that someone has beaten us to it... lets use their
>code, oh, we find a bug in it, well, lets fix it, and hey presto - everyone
>wins... yes?
>
>I'll also note at this point, that I'm no doubt pretty young in terms of
>experience across different systems, with basically all my experience in
>java, and I'm happy to admit that I'm no doubt naive in some areas... but
>hey - if I dont express my thoughts, no one will correct them (or provide
>another viewpoint)....
>
>cheers
>dim
>
>----- Original Message -----
>From: "John Harby" <[EMAIL PROTECTED]>
>To: <[EMAIL PROTECTED]>
>Sent: Sunday, October 13, 2002 10:23 AM
>Subject: Re: the truth about entity beans
>
>
> > But the sad thing is that the new IT seems to want no development (or as
> > little as possible). These frameworks you are mentioning whether
> > purchased or not are used by teams to develop apps. The new IT would
> > rather just buy something such as Siebel.
> >
> >
> > >From: "Dmitri Colebatch" <[EMAIL PROTECTED]>
> > >To: "John Harby" <[EMAIL PROTECTED]>
> > >Subject: Re: the truth about entity beans
> > >Date: Sun, 13 Oct 2002 09:59:48 +1000
> > >
> > >I dont believe I mentioned buying anything...  my argument in that
>email
> > >was
> > >that you shouldn't be re-inventing the wheel, or inventing a wheel that
> > >others also need.  There are many useful open source frameworks out
>there
> > >that are valid alternatives to ejb...  in terms of persistence and O/R
> > >mapping, castor comes to mind.
> > >
> > >----- Original Message -----
> > >From: "John Harby" <[EMAIL PROTECTED]>
> > >To: <[EMAIL PROTECTED]>
> > >Sent: Sunday, October 13, 2002 8:50 AM
> > >Subject: Re: the truth about entity beans
> > >
> > >
> > > > Yeah, as some of my views of late integration has become the IT
>mantra.
> > > > Even the EJB container is not enough buy for IT. More and more are
> > >wanting
> > > > to buy and not build. Providers such as Siebel are actually offering
> > >entire
> > > > e-commerce sites "out of the box" (although I would expect a good
>deal
> > >of
> > > > effort to get these working ;)). Here is one site that is doing this
> > > > already: http://www.tidalwire.com/default.htm
> > > >
> > > >
> > > > >From: Dmitri Colebatch <[EMAIL PROTECTED]>
> > > > >Reply-To: Dmitri Colebatch <[EMAIL PROTECTED]>
> > > > >To: [EMAIL PROTECTED]
> > > > >Subject: Re: the truth about entity beans
> > > > >Date: Sun, 13 Oct 2002 08:21:00 +1000
> > > > >
> > > > > > > > > transaction management, etc.
> > > > > > > >
> > > > > > > > You have to be more specific. JDBC does
> > > > > > > > transactions.
> > > > > > > >
> > > > > > >
> > > > > > > yes, but it does not do transaction management.
> > > > > >
> > > > > > That still doesn't explain it.  Doing searches on the web seems
>to
> > > > > > suggest that there most references seem to think that there is
> > >little
> > >or
> > > > > > no difference.
> > > > > >
> > > > > > So perhaps you could provide an example or a reference that
>explains
> > >the
> > > > > > difference?
> > > > >
> > > > >The real difference (in my view) is the transparent (from a coding
>pov)
> > > > >support of XA.  To be honest, I'm not sure what is meant by
> > >"transaction
> > > > >management" in this context.  But here's my understanding of the
> > >advantages
> > > > >of ejb tx model:
> > > > >   - XA support (can send JMS message and update db, or two dbs, in
>the
> > >one
> > > > >tx)
> > > > >   - transaction demarkation (can have some methods that must
>execute
> > >in
> > > > >their own tx, and some that must create new tx, and some that never
>use
> > >a
> > > > >tx... and so on)
> > > > >both these features come without writing code.
> > > > >
> > > > > > I do not understand your point.  I was trying to point out that
> > > > > > understanding how to configure the container so it uses those
> > >wonderful
> > > > > > features takes time.  And is sometimes impossible.  The
>alternative
> > >is
> > > > > > writing code to do some or all of the same thing.  Presumably if
> > >someone
> > > > > > writes the code then they do understand how to use it.
>Naturally
> > >one
> > > > > > alternative is to hire and expert from the container vendor and
>have
> > > > > > them configure it correctly.  But whether one figures it out
> > >themself
> > >or
> > > > > > hires an expert it still costs.  And that step must be factored
>into
> > >the
> > > > > > calculation of the overall cost of the two alternatives.
> > > > >
> > > > >Ahh yes... and here's the real cruncher.  OK, I'm more than happy
>for
> > > > >someone to say "framework X is more appropriate for my requirements
> > >than
> > > > >EJB", but saying "thats too hard to set up, and its cheaper to roll
>my
> > >own"
> > > > >is hard to see being entirely accurate.  Writing your own framework
>(or
> > > > >worse still not using a framework) means you will have more lines
>of
> > >code
> > > > >to
> > > > >maintain, and hence more bugs to fix.  Sure, EJB containers have
>bugs,
> > >but
> > > > >at least its not your responsibility to fix them.
> > > > >
> > > > >We are still yet to see a suggestion for an alternative framework
>in
> > >this
> > > > >thread.
> > > > >
> > > > >my 2c
> > > > >
> > > > >cheers
> > > > >dim
> > > >
> > > >
> > > > _________________________________________________________________
> > > > Chat with friends online, try MSN Messenger:
>http://messenger.msn.com
> > > >
> > > >
> >
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> >
> >
> >
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