Re: oid as long type

Hi, Kris,

Kris Jurka wrote:

> The use of int is a historical artifact, but the problem is that we
> can't change the API without requiring clients to make code changes for
> some methods.  We could add duplicate method signatures that take long
> for the oid types, but the problem is methods like LargeObject.getOID()
> and LargeObjectManager.create() return int and these cannot be changed
> to long without adjustments to the calling code.  Additionally changes
> would be required to the fastpath infrastructure to send and receive
> longs which would be complicated by the fact that oids are really
> unsigned int4, not int8.
>
> So this is a known problem, but one we've generally avoided dealing with
> because few people actually bump into it.  I suppose we could add the
> new method signatures and add new methods like getLongOID and only bail
> out when code called the old ones with values to be to be represented by
> an int.  I'll put it on my todo list, but it's not real close to the top.

Maybe it would be possible to map it bit-wise to a singned int, so we
have negative OIDs on java side?


Markus

--
Markus Schaber | Logical Tracking&Tracing International AG
Dipl. Inf.     | Software Development GIS

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