Dave Cramer wrote:
> Haakon,
>
> First a little background/history
>
> when jdk1.1 came out java.sql.* was implemented in the
> org.postgresql.jdbc1 package. Probably not packaged this way at the
> time, but it is before my time so I am guessing.
>
> Then jdk1.2 came out and this required a seperation of the packages;
> primarily because of additional Types in java.sql.Types. They couldn't
> be referenced in the jdbc1 package because they didn't exist in it.
>
> So it looks like the orignal people who did the jdbc2 version simply
> copied the jdbc1 stuff, repackaged it into jdbc2 and added the methods
> etc. Along they way they started using some jdbc2 specific methods such
> as the Collections package. The challenge was that there was alot of
> duplicate code shared between the packages, which meant that an update
> in one required an update in the other ....this was tolerable with only
> two packages to deal with, now we have jdbc3 and presumable we can
> expect 4, 5, .... etc.
>
> So the rewrite solves the problem of duplicate code shared between the
> two versions of jdbc1,jdbc2, and now jdbc3.
Yes, those separate directories with mostly duplicate code was a
maintenance headache.
--
Bruce Momjian | http://candle.pha.pa.us
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