I'm not sure whether this will help you much and please excuse me
for any inaccuracy... anyway here's what I think:
First of all, I haven't heard of any API that will do all the work
for you, and axis2 is as dynamic as any other ws implementation. I
haven't used ADB so I have no idea if it could help you.... The wsdl
descriptor contains all the information you might need in order to send
a soap request or parse the response. You can easily parse the types
defined in it using xmlBeans and then be able to construct the xml tree
for the message using AXIOM. What data is to be populated and how you'll
get it is of course your business... the important thing is that you
have the structure of the message. You should have some detailed
knowledge on the wsdl specification to use this approach because you
should make the difference for example between invoking a rpc and a
literal style web service (don't get confused with RPCMessageReceiver in
axis2 - the services using it are still doc/lit style). Using wsdl4j you
can get all the information needed from the wsdl. MTOM support is very
easy, because such date is simply declared as base64Binary or hexBinary
in the types definitions, but for SwA you should be careful, for there
will be more than one part in a single message defined in the wsdl.
Furthermore you should populate the binary data accordingly.
Actually I don't find dynamic clients much useful, apart from
testing purposes, because there will always be something that it will
not support and then it won't be generic (which would normally be the
reason to use it). Besides, according to the web service you'll always
need some post processing for the result, which won't be the same for
every web service published in the world...
Best wishes!
Stefan
amine MOKHTARI wrote:
Exist it an API that allow to define parameters and their types
dynamically; or an API that provide a mechanisms for dynamic
invocation????
Paul Fremantle a écrit :
Aha
Well no. Maybe. Yes. Maybe. No.
Actually Axis2 does NOT have the mapping registry (types <->
namespace) that Axis1 has, because Axis2 is loosely coupled with the
XML data binding. ADB has a generic mapper, but you have to provide
the namespace, and it won't map to more than one namespace without
doing code gen.
I don't know about XMLBeans - it is a much more powerful project so it
may have that support.
Paul
On 7/4/06, amine MOKHTARI <[EMAIL PROTECTED]> wrote:
therefore, axis2 gives the mechanisms to define parameters and their
types for invoking an operation belonging has web services ???
Paul Fremantle a écrit :
> Sure, Axis2 has dynamic support. You need to create the XML body of
> the message and pass it as an OMElement. You can also use STAX and
> then use a STAXOMBuilder to create the OMElement.
>
> Once you have the OMElement you can use ServiceClient or
> OperationClient to invoke the service.
>
> Paul
>
> On 7/4/06, Deepal Jayasinghe <[EMAIL PROTECTED]> wrote:
>> yes , ServiceClient has a constructor for doing that.
>>
>> amine MOKHTARI wrote:
>>
>> > Hello, My question is simple. is it axis2 allow dynamic
>> > invocation of web services ???
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>>
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>> >
>>
>> --
>> Thanks,
>> Deepal
>> ................................................................
>> ~Future is Open~
>>
>>
>>
>>
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