Technology change. Which one?
Hello,
I work for a bank as a java programmer. We have products like loans and systems that help the office clerks to sell that loans. Now we use self made RMI client-"server" architecture. The client is a Swing GUI connecting to the RMI server object. We are planning to have more kind of clients for example WEB browser based client as well (actually we have one web based application which connects to our server via RMI). (our applications are using JDK 1.3) We are gonna refactor the database structure as well.
We are in front of a big refactoring and maybe we will rewrite the whole system. Because of that we are considering other technologies. As far as we have 3 options.
1. stay with the POJOs and simple RMI client server architecture, just refactor that. I suppose even if we chose this we would use something for persistance ( for example hibernate ) and of course we can do transaction handling as well.
2. use JEE5, EJB and stuff like that
In that case there is a huge technology risk because the JEE5 is brand new so there is not so much experience with that it may contain a lots of bugs and I'm not sure the market is ready for that technology ( I mean for example there are not enough app servers... ). And if we chose that our programmers should be trained to use JEE.
3 use JINI
One of us proposed using JINI, but I'm not sure if this would help as at all. I can not see the future of JINI (for example I can not find a JINI topic here among the topics) and I don't think it created to use that in a banking environment where transaction handling, persistance are important. I can not see how it would serve us.
4. other
What is your opinion, which option we should choose?
I work for a bank as a java programmer. We have
products like loans and systems that help the office
clerks to sell that loans. Now we use self made RMI
client-"server" architecture. The client is a Swing
GUI connecting to the RMI server object. We are
planning to have more kind of clients for example WEB
browser based client as well (actually we have one
web based application which connects to our server
via RMI). (our applications are using JDK 1.3) We are
gonna refactor the database structure as well.Wow. Big job. Need some help? 8)
We are in front of a big refactoring and maybe we
will rewrite the whole system. Because of that we are
considering other technologies. As far as we have 3
options.
1. stay with the POJOs and simple RMI client server
architecture, just refactor that. I suppose even if
we chose this we would use something for persistance
( for example hibernate ) and of course we can do
transaction handling as well.I agree that POJOs might be a good way to go, but I'd use them with a Java EE app server and Spring. I'd imagine that you'd have some requirements around clustering and scalability that an app server is written for. Spring can help you with the view layer, the persistence, remoting, 2 phase commit and transactions, etc.
2. use JEE5, EJB and stuff like that
In that case there is a huge technology risk because
the JEE5 is brand new so there is not so much
experience with that it may contain a lots of bugs
and I'm not sure the market is ready for that
technology ( I mean for example there are not enough
app servers... ). And if we chose that our
programmers should be trained to use JEE.Training would be a big issue here. You can do Java EE without EJBs, of course. I'd recommend Spring highly.
3 use JINI
One of us proposed using JINI, but I'm not sure if
this would help as at all. I can not see the future
of JINI (for example I can not find a JINI topic here
among the topics) and I don't think it created to use
that in a banking environment where transaction
handling, persistance are important. I can not see
how it would serve us.Wow. I haven't heard much about Jini in a long time. A beautiful technology, a beautiful thought, but I don't think it's gotten much traction in the market place. I think you'd be better off sticking with Java EE. It's a more conservative bet.
4. otherService oriented architecture is the trend du jour. You should be looking into that. It'll fit into Spring and Java EE.
What is your opinion, which option we should choose?One thing that Spring has is a Swing UI module. I believe it will allow both a Swing UI and a browser talk to the same services. Worth a look.
http://www.springframework org
%
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However the second part may be superfluous; - "in case I delete 1 or 2 files by accident" - I don't know how much data you're going to be adding / changing / deleting on a daily basis, but running incremental image backups shouldn't normally take very long, you'll find out the answer to this when running your tests. A good imaging software will allow you to extract single files from any backup you have made which in effect negates the requirement for a second solution.
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Edit; to answer "which one is right?" is maybe none, maybe all - the right one is the one that works even if it's the fifth choice
Regards
Andy ______________________________________
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