[QPID-6665] update hello_world.cpp example to use setContentObject

• Type: Improvement
• Status: Closed
• Priority: Trivial
• Resolution: Fixed
• Affects Version/s: qpid-cpp-0.34
• Fix Version/s: qpid-cpp-1.35.0
• Component/s: C++ Client, C++ Examples
• Assignee: Robbie Gemmell
• Reporter: Robbie Gemmell
• Created: 29/Jul/15 09:38
• Updated: 06/Sep/16 21:32
• Resolved: 29/Jul/15 09:52

Description

The hello_world.cpp example for Qpid Messaging C++ currently sends its
message by doing "sender.send(Message("Hello world!"));" which causes
it to send a 'data' body section containing the bytes when using AMQP
1.0.

Aleternatively, doing the following results in the payload sent by the client changing to an 'amqp-value' body section containing a utf8 string:

    Message msg;
    msg.setContentObject("Hello World!");
    msg.getContentObject().setEncoding("utf8");
    sender.send(msg);

The latter is probably more in line with expectation of sending a string, and less likely to confuse when interoperating with other clients, and the other examples already do this for string content so the hellow world example should be updated to match.