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https://issues.apache.org/activemq/browse/AMQCPP-32?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nathan Mittler updated AMQCPP-32:
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Fix Version/s: 1.1
> Stomp messages don't preserve property types: please document this behaviour
> ----------------------------------------------------------------------------
>
> Key: AMQCPP-32
> URL: https://issues.apache.org/activemq/browse/AMQCPP-32
> Project: ActiveMQ C++ Client
> Issue Type: Wish
> Components: Stomp
> Affects Versions: 1.1
> Reporter: Albert Strasheim
> Assigned To: Nathan Mittler
> Priority: Trivial
> Fix For: 1.1
>
>
> I am producing messages from Java and C++ using ActiveMQ and AMQCPP,
> respectively. Messages I produce have an int property set on them which I
> want to select on, again in Java or C++.
> As far as I can tell from the [Stomp Protocol
> specification|http://stomp.codehaus.org/Protocol] there is no way to specify
> the types of message headers. As a result, all the messages end up with
> String properties as can be be seen in the unmarshal method of
> [org.apache.activemq.transport.stomp|http://svn.apache.org/viewvc/incubator/activemq/trunk/activemq-core/src/main/java/org/apache/activemq/transport/stomp/StompWireFormat.java?revision=470398&view=markup].
> I can work around this problem by selecting on id=123||id='123' in both Java
> and C++, but it seems a bit suboptimal.
> At least, this issue should be documented somewhere in
> activemq::connector::stomp::commands::StompMessage to help other people who
> can't figure out why their selectors don't work.
> We could consider adding a function that allows the user to specify that
> Stomp message properties should be sent in a type safe manner, and then
> prepend some kind of string to the property name to indicate the type.
> StompWireFormat on the Java side could check for this case and set the typed
> properties accordingly. This is probably too much of a hack -- people who
> want typed properties to work right can use Openwire in the (hopefully) near
> future.
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