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From mjustin <betas...@pair.com>
Subject Re: Does OpenWire support object message transformation for non-Java clients?
Date Tue, 10 May 2011 11:24:07 GMT

Aleksandar Ivanisevic-3 wrote:
> 
> mjustin &lt;betasoft@pair.com&gt; writes:
> 
>> Hello,
>>
>> With ActiveMQ and Stmp I was able to implement message exchange between
>> Java
>> and non-Java clients using the XML or JSON based object message
>> transformation. So a Java object could be consumed by a Delphi app for
>> example without any changes on the Java side.
>>
>> Is the same possible if I use the OpenWire in the non-Java client? If
>> yes,
>> how does a OpenWire client ask the broker for XML or JSON object
>> serialization?
> 
> I don't think so since the wire protocol is not standardized in JMS
> spec, but not sure. Out of interest, what makes you consider that option?
> 

Hi Aleksandar,

Stomp is limited in some areas, so some users of my Delphi library asked for
a OpenWire-based implementation. It would be ok if I can send/receive text
and binary messages only over OpenWire with Delphi.

With Stomp, if the client subscribes using 'transformation:jms-object-xml',
Java objects which are sent from a normal JMS client to the broker will be
serialized as XML using XStream, so the Stomp client can deserialize them
into objects of other programming languages (explained at
http://activemq.apache.org/stomp.html)

AFAIK the ActiveMQ C# client uses OpenWire and is able to send/receive
object messages. I would like to implement it for Delphi, but am not sure
about transformation support.

Regards





-----
Michael Justin
habarisoft - Enterprise Messaging Software for Delphiâ„¢
http://www.habarisoft.com/
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