[Rd] S4 and connection slot [Sec=Unclassified]

[Paul Gilbert]

There may be a problem that objects with slots can persist into new 
sessions (i.e. be saved)  but I think connections die when a session 
ends, so whatever is in the slot is no longer valid.

Paul

Stavros Macrakis wrote:
> On Mon, Jun 29, 2009 at 9:19 AM, Martin Morgan <mtmorgan at fhcrc.org> wrote:
> 
> 
>>...I'm not sure that including a connection in a slot is going to be a good
>>idea, though -- a connection has reference-like semantics, so you can
>>end up with multiple objects pointing to the same connection, Also when
>>an object is garbage collected the connection will not be closed
>>automatically.
> 
> 
> 
> I'm not sure I understand your point here.  Having multiple objects refer to
> the same connection seems like a perfectly reasonable and useful thing, and
> garbage collection should work just fine -- when *all* of the objects
> referring to that connection are unreachable, then the connection is
> unreachable and will itself be garbage collected.  No?
> 
>            -s
> 
> 	[[alternative HTML version deleted]]
> 
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