Re: [Evolution-hackers] [Camel] How can I get a reference to the store class from another class?

[Not Zed <notzed ximian com>]

On Tue, 2005-09-13 at 12:26 +0200, Jules Colding wrote:
> On Tue, 2005-09-13 at 04:08 -0600, Susarla Parthasarathi wrote:
> > On Tue, 2005-09-13 at 09:56 +0000, Jules Colding  wrote:
> > > Hi,
> > > 
> > > There is a connect method in the transport class. I would like to use
> > > the connect method that I implemented in the store class. How do I get a
> > > reference to that one from a CamelService?
> > If you want to use the same session, just implementing the send_to
> > method should do.
> > You could get the service object from CamelTransport and further get the
> > pointer to the CamelStore. Getting a session from the store should be
> > easy.

I don't really follow what you're asking here ... since this discussion
doesn't seem to match the original query.

> Something like:
> 
>    CAMEL_SERVICE_CLASS(parent_class)->connect(service, ex);
> 
> from within the transport connect() method?

If you overrode the connect() method, that's how you'd call the parent
class's one.  Think Java super.connect() vs this.connect() (umm, i think
that's java, it's been a while).  And yes, you should always do this at
the start of your connect method.

> But I gather that I don't need to do this as I can connect explicitly
> from within the send_to() method in the transport instead? 

> Isn't it cleaner to connect in connect() and let the upper layers worry
> about using send_to() without being connected? 
> 
> Should I ever call connect() in send_to() or is connect() called from
> above before send_to() is invoked?
> 
> Should I return an exception if I am not connected in send_to() or
> should I connect myself?

SendTo will only ever be called on a connected transport.  If it isn't,
then you must return a 'not connected' exception, yes.  See
camel-smtp-transport.c

So yeah, connect will be called separately.