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From Ali Sadik Kumlali <>
Subject Re: Questions about "java:MSG"
Date Fri, 17 Mar 2006 11:50:18 GMT
Hi Dink,

I'm designing the same structure with Axis2 for my project. Although I'm not sure it's the
best, I will implement 1th and 2nd as sync and 3th one as async. In this scenario, client
must have a listener for the 3th.

But I don't know what the "java:MSG" is and how to implement async service with it.


Ali Sadik Kumlali

Dink <> wrote:     Thanks for your reply. What you draw is really
my  case.
 Message  1.                                      request
            Client ----------------> Server

Message  2.          ack response
           Client  <--------------- Server

... (time passes)

                     actual  result
Message 3. Client <---------------  Server
 I have thought of two kinds of  situation for the above case.
 The first situation, I regard the  message 1 and 2 as the synchronous message pattern 
 and the message 3 is the  asynchronous one.  The second situation, I regard the three messages
 as the asynchronous messages.  I don't know which kind of situation is suitable for my  case.
 Besides, I don't know if the "java:MSG" provider  programming mode I used can fulfill the
asynchronous case. 
If it  can not achieve the asynchronous transmission, how can I do  that?
 Dink  Lo
    ----- Original Message ----- 
   From:    Ali Sadik    Kumlali 
   Sent: Friday, March 17, 2006 5:59 PM
   Subject: Re: Questions about    "java:MSG"

Hi Dink,

Just to make it clear, do you    mean;

Client ----------------> Server

            ack response
Client <--------------- Server

...    (time passes)

            actual result
Client <---------------    Server

If this the your case, it has some asynchronous    process logic. So, that might be your starting


Ali Sadik Kumlali

Dink    <> wrote:                   Hello,
     I need to develop a client and a web service to accomplish      some message exchange.
     The message exchange pattern is as follows:
     1. The client sends an XML document to the web service to      do some request.
     2. The web service returns an XML document to notify the      client that the request
sent by the client is received and being      processed.
     3. The web service has finished the request and return the      result to the client.
     I have used the "provider=java:MSG" style to develop the      web service to handle the
incoming message.
     But when I think of how to reach the step 3, I      can't find any method signature provided
by axis to do      it.
     The method signatures provided by axis are:
     public Element [] method(Element []      bodies);
public      SOAPBodyElement [] method (SOAPBodyElement []      bodies);
public      Document method(Document body);
public void method(SOAPEnvelope req,      SOAPEnvelope resp); 
     Every method looks like a simultaneous method except the      fourth one. The simultaneous
method I mean is that the client sends a      request to the web service and receives a response
from the      service.
     I think the methods provided by java:MSG can't fulfill      my full requirements. 
     Can somebody point me some directions to solve the      problem?
     Dink Lo


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