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From thinkbox <pat_...@yahoo.com>
Subject Re: ObjectMessage in C/C++
Date Fri, 06 Nov 2009 06:57:11 GMT

I see, that makes sense, I get the point.
Thanks Tim!

- Pat

X.S. Just a side comment. Having said that ActiveMQ C++ cannot support
ObjectMessage -- can we assume that ObjectMessage is reserved for future
use? Or are we looking at the CMS version of ObjectMessage the same is it is
implemented now?



Timothy Bish wrote:
> 
> On Wed, 2009-11-04 at 19:20 -0800, thinkbox wrote:
>> Hi Nate, I am also in the same situation with Joshua and is currently
>> considering ActiveMQ-CPP for my C++ clients to be able to talk to my Java
>> components. I am currently using version 2.2.6 of ActiveMQ-CPP, are there
>> any updates if ObjectMessages is now supported?
>> 
> 
> ActiveMQ C++ cannot support ObjectMessage.  The serialized version of a
> Java object is not readable by the C++ code, and can't be converted into
> a C++ type.  You need to perform some sort of transformation on the
> Object before sending to a C++ client, such as converting it to XML and
> sending it as a TextMessage, then your C++ code can turn it back into a
> C++ object of your own design or just parse the XML for the data you are
> after.  A search for C++ XML Binding on Google will give you some
> insights into how to accomplish that.  
> 
>> Also, say my serialized object is implemented below,
>> 
>> public class Subscriber implements Serializable {
>>     private String name;
>>     private int age;
>>     
>>     ...
>> 
>>     //setters and getters method follows
>> }
>> 
>> 
>> On my C++ code, say I have created an equivalent Subscriber class, can't
>> I
>> just cast the returned object of getObject() into Subscriber?
>> 
>> Thanks,
>> Pat
>> 
>> 
>> nmittler wrote:
>> > 
>> > ActiveMQ-CPP doesn't support ObjectMessages.  If you're stuck sending  
>> > ObjectMessages from Java, probably your best bet would be to use a  
>> > Camel message translator in the broker
>> > (http://activemq.apache.org/camel/message-translator.html 
>> > ).
>> > 
>> > Regards,
>> > Nate
>> > 
>> > On Jul 6, 2008, at 6:44 PM, Joshua Smith wrote:
>> > 
>> >> ActiveMQ Users-
>> >>
>> >> I have a project coming up where we'll be using ActiveMQ as our JMS  
>> >> server
>> >> between a Java application and a C/C++ application. I'd like to  
>> >> exchange
>> >> ObjectMessages. Is there anything special (e.g. endian) that I need  
>> >> to be
>> >> aware of? Does the C/C++ application have to have objects defined  
>> >> that are
>> >> the equivalent of my Java objects?
>> >>
>> >>
>> >> Thanks,
>> >> Joshua Smith
>> > 
>> > 
>> > 
>> 
> -- 
> Tim Bish
> http://fusesource.com
> http://timbish.blogspot.com/
> 
> 
> 
> 
> 

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