Inserting a value into a XComponentContext

[Stephan Bergmann]

On 12/01/2014 12:29 AM, Chris Sherlock wrote:
> So what about the following approach:
>
> Reference< XComponentContext > xContext =
> ::comphelper::getProcessComponentContext();
> ::cppu::ContextEntry_Init aContextInfo[] =
> {
>      ::cppu::ContextEntry_Init("testkey", uno::Any() ),
> }
> xNewContext = ::cppu::createComponentContext(aContextInfo,
> sizeof(aContextInfo) / sizeof (aHandlerContextInfo[0]), xContext);
>
> Then to get access to the container, I use something like this:
>
> Reference< container::XNameContainer > xNameContainer( xContext,
> UNO_QUERY );
>
> Is this the right approach? Will the delegate ComponentContext work?

The "philosophy" behind the UNO component context is that a component 
(i.e., service or singleton) gets one passed in during creation (cf. 
e.g. the context argument to the UNO service constructors, implicit in 
UNOIDL but explicit in the C++ and Java language bindings at least) and 
in turn uses it to obtain any other components.  This is somewhat 
blurred by the LO "convenience hack" of global 
comphelper::get/setProcessComponentContext().

That said, the above provides you with a functional xNewContext that you 
could "locally" use to instantiate some component with.  See my other 
reply for a way to instead modify the existing "global" component 
context (what is what you actually want to do, for whatever reason, I 
assume).