Re: First draft user docs on maps

[Gordon Sim <gs...@redhat.com>]

On 05/07/2010 09:35 PM, Jonathan Robie wrote:
> On 05/03/2010 05:21 PM, Steve Olson wrote:
>> Thanks everyone for the replies. It looks like the map interface could
>> do the job nicely. Is there some advantage to going another route?
>>
>> Note that it will not be known at compile time what the data row is
>> going to look like; it will be obtained from the database during
>> program execution. Ideally, I would like to send multiple rows in a
>> single message.
>
> I've added basic information on maps here:
>
> http://people.apache.org/~jonathan/Programming-In-Apache-Qpid.html
>
> For C++ and Python, read this part:
> http://people.apache.org/~jonathan/Programming-In-Apache-Qpid.html#section-Maps

In c++ the value of map entries are instances of qpid::types::Variant. 
There is no direct support for a single char in this class (and the 
corresponding rows in the table are incorrect).

I think it would make more sense to use the definitions of types as used 
in Variant.h for this table. The exact width of e.g. int is platform and 
compiler dependent.

> For Java, read this part:
> http://people.apache.org/~jonathan/Programming-In-Apache-Qpid.html#section-JMS-MapMessage
>
>
> Feedback would be extremely helpful - let me know what's clear and
> what's not, and what errors you find.


---------------------------------------------------------------------
Apache Qpid - AMQP Messaging Implementation
Project:      http://qpid.apache.org
Use/Interact: mailto:users-subscribe@qpid.apache.org

Re: First draft user docs on maps

[guillaume <gu...@gmail.com>]

Is encoding usine pb Is faster than with map and qpid encode function ?
-- 
View this message in context: http://apache-qpid-users.2158936.n2.nabble.com/Send-data-row-as-message-using-Qpid-client-tp5000112p5506844.html
Sent from the Apache Qpid users mailing list archive at Nabble.com.

---------------------------------------------------------------------
Apache Qpid - AMQP Messaging Implementation
Project:      http://qpid.apache.org
Use/Interact: mailto:users-subscribe@qpid.apache.org