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From "Colin Bester" <cbes...@site-controls.com>
Subject RE: Xmlrpc and unsupported types
Date Fri, 23 Apr 2004 21:51:45 GMT
I think that this could be a really neat solution (especially for
lightweight systems) and would be willing to assist.

Colin
-----Original Message-----
From: Rob Jellinghaus [mailto:robj@nimblefish.com] 
Sent: Friday, April 23, 2004 4:37 PM
To: xmlrpc-user@ws.apache.org
Cc: xmlrpc-dev@ws.apache.org
Subject: RE: Xmlrpc and unsupported types


I had exactly the same problem.

No, xmlrpc does not support this out of the box.

I have written some fairly compact reflection-based code to convert Java
beans and Java collections into simpler structures that XML-RPC can handle.
As a bonus, it converts longs, characters, nulls, floats, and other data
types not supported by XML-RPC.  I have also wrapped it with a client-side
java.lang.reflect.Proxy.  The end result is that you can make calls that
look and feel like RMI but that use XML-RPC behind the scenes.

It works pretty well.  However, it is definitely out of scope for XML-RPC.
Is there any kind of XML-RPC extensions package or other side project that I
could submit this to?  There's no doubt that many people could make use of
it (viz. Colin's email!).....

Cheers!
Rob



-----Original Message-----
From: Colin Bester [mailto:cbester@site-controls.com] 
Sent: Friday, April 23, 2004 2:32 PM
To: xmlrpc-user@ws.apache.org
Subject: Xmlrpc and unsupported types

Not sure if xmlrpc is able to do what I require and would appreciate some
advice. 
I am looking for a light method (application will be running on embedded pc
platform running linux) to allow transfer of java object via rpc. In my
application I have a collection of java classes (my objects) that I want to
transfer via rpc on demand from client. Objects (java class) contain
standard java types as well as my own java objects. e.g. 
Class someclass 
{ 
        private String someString; 
        private Integer someInt; 
        private myClass someClass; 
... 
} 
In the RPCHandler I want to be able to return 'someclass' object for client
retrieval. 
On going through documentation I get the feeling that it is possible to
write ones own type handlers and would appreciate comment on whether this is
indeed possible and maybe some clues (links) on how to do this (I haven't
found reference on how to do this). If this is not possible, is there any
other suggestion besides serializing object over socket connection? 
Thanks, 
Colin 





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