On 08/26/2015 08:13 PM, Chaomei Lo wrote:
> Thanks, Tim.
>
> Let me rephrase my question - is the Message class in the argument of
> onMessage(...) under the 'cms' namespace ? So that I can write 'const
> cms::Message* message' in below. That was what I used, but not work
> properly.
All CMS API classes exists in the cms:: namespace.
#include <cms/MessageListener.h>
class MyConsumer : public cms::MessageListener {
public:
virtual void onMessage(const cms::Message* message);
}
> // Called from the consumer since this class is a registered
> MessageListener.
> virtual void onMessage(const Message* message) {
>
> On Wed, Aug 26, 2015 at 5:05 PM, Timothy Bish <tabish...@gmail.com> wrote:
>
>> On 08/26/2015 07:37 PM, mfan wrote:
>>> I have constructed a customized Consumer class with the following line
>>> (declare onMessage(..) in Consumer.hpp.
>>>
>>> /virtual void onMessage(const Message* message);
>>> /
>>>
>>> I do not want to have "using namespace xxx" in header, so I need to
>> identify
>>> which Message object it passed to. I found a "Message.h" in
>>> ~/activemq-cpp-library-3.8.4/src/main/cms, so I assume that it is, so I
>>> added 'cms::' in above line, and thought it would solve the problem.
>>> However, weird behavior happened, Instead of getting what the Producer
>> has
>>> just sent, the Consumer received something seems to be sent before. I
>> have
>>> restarted the CMS broker, it did not solve the problem. Did I use a
>> wrong
>>> namespace for Message ?
>> It's not really clear what you did and what is happening so I can't say
>> what might be the problem.
>>
>>> I checked the Message.h under 'cms' directory, it has 'CMS_API'
>> declared
>>> in front of the Message class,
>>>
>>> /class CMS_API Message {
>>> /
>>> What does the CMS_API do ?
>> Ensures that on Windows the class has proper declspec exports for DLL
>> interop
>>
>>> If I include all these following in header, then it works fine.
>>>
>>> /using namespace activemq::core;
>>> using namespace decaf::util::concurrent;
>>> using namespace decaf::util;
>>> using namespace decaf::lang;
>>> using namespace cms;
>>> /
>>>
>>> Another question, in ActiveMQ-CPP example, there is an 'AMQCPP_UNUSED'
>> pass
>>> to the argument of the main() function. What does it mean ?
>> Prevents the compiler on some platforms from emitting a warning that
>> those args are not used as that is intentional.
>>
>>> Thanks.
>>>
>>>
>>>
>>> --
>>> View this message in context:
>> http://activemq.2283324.n4.nabble.com/Is-Message-object-in-arugment-of-onMessage-under-the-cms-namespace-tp4701425.html
>>> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>>>
>>
>> --
>> Tim Bish
>> Sr Software Engineer | RedHat Inc.
>> tim.b...@redhat.com | www.redhat.com
>> twitter: @tabish121
>> blog: http://timbish.blogspot.com/
>>
>>
--
Tim Bish
Sr Software Engineer | RedHat Inc.
tim.b...@redhat.com | www.redhat.com
twitter: @tabish121
blog: http://timbish.blogspot.com/
