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Posted to dev@qpid.apache.org by "Justin Ross (JIRA)" <ji...@apache.org> on 2016/11/04 17:23:58 UTC
[jira] [Updated] (PROTON-1288) c++ provide access to message maps
as proton::value
[ https://issues.apache.org/jira/browse/PROTON-1288?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Justin Ross updated PROTON-1288:
--------------------------------
Fix Version/s: (was: 0.16.0)
0.17.0
> c++ provide access to message maps as proton::value
> ---------------------------------------------------
>
> Key: PROTON-1288
> URL: https://issues.apache.org/jira/browse/PROTON-1288
> Project: Qpid Proton
> Issue Type: Bug
> Components: cpp-binding
> Affects Versions: 0.14.0, 0.15.0
> Reporter: Alan Conway
> Assignee: Alan Conway
> Fix For: 0.17.0
>
>
> We need to provide access to the message property maps as a proton::value.
> Given
> {code}
> std::map<string, scalar> my_map;
> proton::message m;
> {code}
> Here are some options:
> 1. Add new message accessor: proton::value& properties_value()
> proton::get(m.properties_value(), my_map)
> 2. Add value() accessor to cached_map
> proton::get(m.properties().value(), my_map)
> 3. Make cached_map : public proton::value()
> proton::get(m.properties(), my_map)
> 3 is neatest, 1 provides a clearer separation between the case where you want a convenient cached map vs. you want to decode to your own C++ map, work on it, and possibly re-encode it later. I lean towards 3. but open to persuasion.
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