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From Nilesh Ghorpade <>
Subject Re: [Axis2] AXIOM or JBIX
Date Tue, 27 Mar 2007 05:27:42 GMT
Hi Anil,

The Data binding frameworks come into picture when you are generating the Java code artifacts
from WSDL. If you observe the "wsdl2java" command there is a command line argument namely
"-d" with which you can specify the Data binding framework which you want to use. In case
u want to use JiBX you would be specifying something like 

$> wsdl2java -o /outputDir -d jibx -EbindingFile /resources/jibxbindingFile.xml -uri MyWebService.wsdl

The above command is just for making things more simpler. Also if there are no schema references
in the WSDL or if the WSDL is not having any schema types then the Data binding framework
would not be coming into picture. (Others Please correct me if I am wrong.)

You would just be deciding which Data binding framework you should be using. AXIS 2 would
internally be using the same and generating the Java classes for you. Do not get confused
by the approach which you are choosing to build the web service and the data binding framework.
The data binding framework is just to map the schema which is defined in the WSDL to Java
classes. Thats the only purpose of the data binding framework. 

Using POJO's for web services means you would be writing a POJO class which would be capturing
all the information you need for invoking the particular web service operation. For example
if you see the AddressBookService in the AXIS 2 samples you can see that the addEntry method
takes in a POJO as its input parameter namely Entry.

Regarding your second question I am not able to understand it correctly.  

Also the flow which you have mentioned from the Client to the Service is correct and it would
remain the same for any Web service for that matter i.e. not only AXIS 2 but any web service
which is developed using any other framework.

Hope that answers your queries.



----- Original Message ----
From: Anil VVNN <>
Sent: Monday, March 26, 2007 7:56:35 PM
Subject: Re: [Axis2] AXIOM or JBIX

Hi Niles,

Thanks for answering my questions. As I said I'm a beginner, I have few more
questions related to previous one.

(1) When exactly do we use Binding frameworks (JIBX, ADB or XMLBeans) ? 
For instance, the examples given in Axis2 website (i.e. StockQuoteService)
referring to simple method call, client calling WS for "getPrice/update"
operations but there's no XSD involved, I think this kind of operations can
be easily accomplished using POJO option. But I'm confused when to use POJO
or anyother Binding framework(JIBX).

(2) What is the difference between "XML Processing Model" and "SOAP
Processing Model", when do we use these models independently.

To my understanding, this is the typical flow of Axis2 services,

Client ----calls---> Stub (generated by wsdl2java) ----calls[SOAP
request]---> Skeleton Interface (generated by wsdl2java) -->Business Logic

And this SOAP request can be handled using any transport (eg. TCP, JMS etc.)

Please correct me if I'm wrong. Thanks.

- Anil

Nilesh Ghorpade wrote:
> Hi,
> As per my understanding AXIS 2 uses AXIOM API's internally for any XML
> related activities. Hence as you have mentioned that you are confused to
> choose between POJO, AXIOM, JIBX, ADB or XMLBeans, the AXIOM is an invalid
> option here.
> Secondly in AXIS 2 you can create web services using either the Spring
> Framework or POJO. 
> JiBX, XMLBeans and ADB are more related to the data binding frameworks
> which AXIS 2 supports. Hence it depends on your schema on which data
> binding framework you would want to select. As per my knowledge XMLBeans
> is the best when it comes to complex schemas. This is because XMLBeans
> implementation can understand all the XSD (i.e. schema) constructs.
> To answer your second question, the answer is YES. If you want to use the
> wsdl2java command from AXIS2 for generating your stubs and skeletons you
> will need the WSDL. Generating a WSDL is also not a diccficult task. YOu
> can have your SEI defined i.e. the Service Endpoint Interface with all the
> method signatures which you want to expose as web service operations. On
> executing the java2wsdl command from AXIS2 you would be able to get the
> WSDL. And using this WSDL you can generate the remaining artifacts of your
> web service. WSDL is nothing but an interface and hence even if you have
> defined an interface in Java, you can generate a WSDL from it.
> Hope that answers your queries.
> Regards
> Niles
> ----- Original Message ----
> From: Martin Gainty <>
> To:
> Sent: Monday, March 26, 2007 3:15:01 AM
> Subject: Re: [Axis2] AXIOM or JBIX
> Anil-
> I found this whitepaper quite informative
> SAX2 processes fastest..with DOM bein
> M--
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> ----- Original Message ----- 
> From: "Anil" <>
> To: <>
> Sent: Sunday, March 25, 2007 4:37 PM
> Subject: [Axis2] AXIOM or JBIX
>> Hi,
>> I'm new to Axis2, what is the criteria to choose
>> between POJO, AXIOM, JIBX, ADB or XMLBeans. How do we
>> decide architecture wise. 
>> My second question is, is wsdl file mandatory to
>> create stub and skeleton interfaces or can we use just
>> skeleton file to create wsdl file. 
>> Thanks.
>> ____________________________________________________________________________________
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