Oracle ADF/BC4J vs "other" Java/J2ee technologies. Influence a decision

Dear All,
Our dev group is now at the stage when we need to make a decision which way to go - "proprietary" Oracle ADF/BC4J route or open source/java/j2ee standard. In our group we have a mix of Oracle Foms, pl/sql and java developers. The problem is that our core java developers are strictly against any proprietary thing, and they do not really want to even take a look at ADF/BC4J claiming that when it comes to resolving performance and other issues we will be better off with open source, rather than depend on Oracle...
I am coming from an Oracle centric world, and to me ADF is a natural choice, however I do not have a lot of experience in Java/J2EE to post a strong argument for or against ADF and BC4J.
I am just wondering if there is a case study, or comprehensive cons and pros for one or the other path.
I will greatly appreciate anyone's answer.
Thank you,
VO

"When it comes resolving performance and other issues we will be better off with open source."Really? How - are they planning to go into the hibernate/spring engine and fix the problems? Or do they have a specific "support" contract with some company that will guarantee them fixes to these issues? If they do have such a contract how much does this support costs the organization?
Where is the notion that open-source is faster coming from? Certainly not from actual benchmarks like this one: http://www.spec.org/jAppServer2004/results/
As Frank said your management might want to look into a more complete picture than what your Java developers are looking at.
For example, given that you have Forms based developers, how fast can they get up to speed with the open source solution vs the ADF solution?
I think a simple benchmark of productivity when building an application with the stack they are offering vs the ADF stack would prove the point even better.
Don't have time to run one have a look at the RAD Race results from this year where ADF based team beat up Spring based teams.
http://www.bloggingaboutoracle.org/archives/javapolis-radrace-the-full-story
and
http://www.radrace.org/en/JPed_2006/JP_report_2006.html#

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1) The above proposing system is feasible?
perfecly feasible, and actually a reasonably standard use of oracle lite
2) Can we develop the Mobile Application using ADF/BC4J and using that we would like to
control the sync process from our custom application.(so that only their worksheet will come to their Mobile Device DB)
Actually two different questions here. The application code that runs on the client device can be written in any thing that will run on that type of device, and is capable of using the APIs to connect to the local database, and the other functionality like synchronisation. From the forum there look to be VB, C, java users out there (an i even believe if you wanted to, you could use forms). Main decision regarding the Platform for the application code development tends to be whatever you have the skills in.
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The second application is your runtime code that has a user interface, functionality, processing and validation. This is written in some development platform, and accesses the database created above for select, insert, update etc.
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b) I should have Oracle 10g Lite client installed in a Windows PC/Laptop
YES - once the server is set up, this is downloaded and set up by accessing the <server url>/webtogo/setup
c) To get my custom application in My Mobile Device, first I have to deploy the application in Oracle 10g server using Oracle Mobile Server. Then I have to connect my Mobile Device to the Oracle 10g Lite server,
and deploy the application in my Mobile Device using Oracle Mobile Manager.
steps in outline are
1) install server
2) develop the oracle lite application (ie: database) and publish this to the mobile server (can use the development kit or java APIs for these two steps
3) add a user with the relevant subsetting parameters
4) set up oracle lite win32 client on the laptop from the server download
5) synchronise using the msync utility on the client to create the databases and odbc entries
6) develop your application code using the client database
7) during development, then changes to database structure would be via changes and re-publish of the oracle lite application, followed by a sync to update the client database
8) once all development is complete, the runtime application code can be bundled up into the oracle lite application if you want, and then the initial sync for live users will download the database and application code.
4) I would like to do a POC before start the project.
What are all the installations I have to do in my Laptop.(Consider I am installing Oracle 10g Lite server/client, Mobile Manager in my Laptop)
You can set up a standalone server on the laptop, but better to do this on a development app server so you can use the main server development database as the data souce for the snapshot definitions (pretty easy install). there are conflicts if you try and put the oracle lite client and the mobile development kit on the same machine, but if you are familiar with java, the API development is fairly straightforward to use (i have developed applications in this, and i know only the basics of java) you do not need the MDK
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The above should be reasonably quick and proves
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after this basic POC, you can extend into defining fast refreshes to improve the efficiency of the sync process, managing the MGP process, developing a more comprehensive database and application etc. If you have complex joins between server table, you may also want to look at creating views to denormalise data and use these as the basis for the snapshots

Oracle ADF/BC4J vs "other" Java/J2ee technologies. Influence a decision

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