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From Dennis Sosnoski <>
Subject Re: [Axis2] Fwd: two small doubts
Date Fri, 11 Mar 2005 20:33:33 GMT
I'm not directly involved with the Axis2 development, but I personally 
believe you're on the right track in setting the focus on a clean, 
flexible, and performant core rather than on implementing particular 
APIs. The APIs involved in the web services area are so complex and 
detailed that they have a major impact on the design. I think this has 
really hurt Axis1, where many of the inefficiencies appear to revolve 
around the need to maintain compatibility with JAX-RPC and SAAJ. The 
focus on APIs seems also to have caused the focus of Axis1 testing to be 
on the TCK, rather than on a comprehensive set of usage tests. I suspect 
this has a lot to do with the way bugs appear to get fixed in Axis1 but 
then pop up again in the next release.

I don't know how easy it will be to layer JAX-RPC, SAAJ, and the growing 
crop of related APIs over the Axis2 core, especially since these 
standards are still evolving. I suspect most users will just stay with 
the core rather than trying to use the layered APIs anyway, though, 
especially if your core provides fast and easy web services 
implementations that are WSI-BP compliant. I think the real problem here 
is that the Java standardization efforts in this area were simply 
premature - IMHO we would all have been better served if Sun had simple 
released the JAX-RPC RI as a tool rather than a standard. As it is now 
we're probably stuck in a cycle like CMP Entity Beans, where it won't be 
until 3.0 that we finally have the basis for doing things in a way that 
really makes sense for users.

  - Dennis

Dennis M. Sosnoski
Enterprise Java, XML, and Web Services
Training and Consulting
Redmond, WA  425.885.7197

Ajith Ranabahu wrote:

>A "shim DOM" is a DOM implementation on top of OM. This means that we
>will be able to build a DOM tree (DOM refers to w3c standard DOM) from
>a previously built OM tree. The reason for having such a shim DOM is
>to facilitate features such as WSS4J (which are written on pure DOM)
>About spec compliance. Well I do believe that specifications are
>important which ultimately allow our client/server to be
>interoperable. Just as you mentioned there will be lot of people who
>wish to try out axis using there own clients and spec compliance is
>specially important in this sense (to some level beyond the wire down
>to the API as well)
>We at Axis2 are not against specs at all  :).What we believe is that
>the core needs to be "spec-neutral". No specification is assumed in
>the core. this is exactly what has been done in Geronimo which has a
>"non-J2EE-aware" core. So similarly we are developing a simple and
>fast core which has no built in support for any of the specifications,
>but such specification support can easily be layered upon.
>Hope this gives you some insight to the Axis2 way of looking at things :)
>On Fri, 11 Mar 2005 12:44:40 +0530, jayachandra <> wrote:
>>Sry, forgot the [Axis2] prefix in the subject.
>>Resending with [Axis2] prefixed in the subject.

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