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Adapter

selvaraj , kalimuthu
Greenhorn

Joined: May 27, 2001
Posts: 4
Is there Any Sanples or free adapter available to conect to Baan from Weblogic server 6.1?If so , pls let me know
Atul Apte
Author
Greenhorn

Joined: Feb 19, 2002
Posts: 29
Hi,
Can I ask you why you are searching for free adapters? I doubt if anyone will provide you with a free adapter especially for large packages like ERP and CRM.
I am assuming you require a Baan adapter.. have you contacted Baan about it?
Atul


Atul Apte<br />President and CEO <a href="http://www.iconexio.com/" target="_blank" rel="nofollow">iConexio Technologies Inc</a>.<br />Author of <a href="http://www.amazon.com/exec/obidos/ASIN/0672323109/ref=ase_electricporkchop" target="_blank" rel="nofollow">Java Connector Architecture: Building Enterprise Adaptors</a>
Ruilin Yang
Ranch Hand

Joined: Jan 06, 2002
Posts: 150
I image it world be a good market to develop adaptors for various connections.
What do you think ?
Atul Apte
Author
Greenhorn

Joined: Feb 19, 2002
Posts: 29
Yes it is a good market to build and provide resource adapters. There are a few companies doing it already.. SUN has a list of companies that are resource adapter providers. I am sure there are other companies doing that too.
Take a look at www.iconexio.com as an example.
Domain knowledge is very important when building resource adapters. Do you have a strategy or a plan to become a resource adapter provider?
Michael Ernest
High Plains Drifter
Sheriff

Joined: Oct 25, 2000
Posts: 7292

Originally posted by selvaraj , kalimuthu:
Is there Any Sanples or free adapter available to conect to Baan from Weblogic server 6.1?If so , pls let me know

kalimuthu -
Please change your name to correspond to JavaRanch's naming policy.
Thanks,


Make visible what, without you, might perhaps never have been seen.
- Robert Bresson
Ruilin Yang
Ranch Hand

Joined: Jan 06, 2002
Posts: 150
Atul,
1) Thanks for the reply. You said the domain knowledge is very important for building connector I believe you meant the business area, such as banking, engineering ?
2) By the way I still not see the clear difference between web service and the connector archetecture.
Thanks again for your thorough explanation.
Ruilin
Atul Apte
Author
Greenhorn

Joined: Feb 19, 2002
Posts: 29
Ruilin,
Yes domain expertize in the specific industry like Telecommunications, Manufacturing etc. as well as domain expertize in specific applications (SAP, PeopleSoft, Siebel, etc.).
The application expertize is important if you are developing adapters for packaged applications. Industry expertize is important for successful integration beyond adapters.
I am sorry if my reply on web services and adapters was not clear enough.

JCA adapters become part of the J2EE server. They cannot be deployed on a mainframe or other platform unless it is J2EE compliant.
Web services on the other hand is a protocol based on XML/SOAP and UDDI. This protocol enables client applications to lookup the required service/function and then access it or invoke it remotely.
Hence web service is not an extension of the application server or any other platform but more of a access mechanism that can be used to invoke functions across the Internet.
Hope this is better explaination.
Atul
Ruilin Yang
Ranch Hand

Joined: Jan 06, 2002
Posts: 150
Atul,
Thanks for the clear explanation.
I understand the topics better now.
Ruilin
Ruilin Yang
Ranch Hand

Joined: Jan 06, 2002
Posts: 150
Atul,
The adapter developed under the specification/framework of JCA should
be able to manage resource pooling, transaction, and security, etc. services in a simple/standard way, which do not need much of the developer's effort. Is this correct ?
Thanks
Ruilin
Atul Apte
Author
Greenhorn

Joined: Feb 19, 2002
Posts: 29
Ruilin,
A short answer to your question is yes and no. J2EE will do a lot of the work in terms of managing transactions and security, however the JCA adapter will have to implement the contracts specific to transactions (local, distributed) and security. Hence developers still need to code the actual methods which will handle transactions and security between the J2EE server and the EIS (business application).
The run-time management of security and transaction will be done by the J2EE server and so from that perspective developers may have to do very little.
Atul
Ruilin Yang
Ranch Hand

Joined: Jan 06, 2002
Posts: 150
Atul,
I thought JDBC API is consistent with JCA framework and JDBC drivers are kind of resource adapters. After follow your response to the questions in in this forum, it appears that my understanding is not all right.
Please give me more clarifications
Thanks
Ruilin
Atul Apte
Author
Greenhorn

Joined: Feb 19, 2002
Posts: 29
Ruilin,
JDBC is not the same as JCA. In fact JCA and JDBC are complimentary to each other. JCA resource adapter makes use of JDBC to access databases. A JCA resource adpater is expected to do more then just access database tables. It is also expected to expose a standard CCI interface ensuring consistent API to access database and other legacy applications.
The JDBC API is very different from the JCA CCI API. You will see the JCA CCI API support XML and other EAI tools whereas JDBC won't.
In my personal opinion, moving forward SUN will have to define the boundaries between JDBC and JCA as well as the use cases more clearly.
I see JDBC as a driver that enables JCA resource adapters to get access to RDBMS at a database level. There will be similar drivers (JMS, etc.) what will enable a more richers set of JCA adapters in future.
Atul
 
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subject: Adapter