On Aug 30, 2006, at 1:59 PM, Dr Gerard Hammond wrote:
I think you will have to conditionally compile them into the
separate binary.
I created a database wrapper and let it conditionally build in any
appropriate plugin libraries depending on build time constants. It
has all the same calls as the RB database object. It has one
property theDatabase as cDatabase. This gets cast to whatever the
appropriate database type is. The wrapper now handles 12 databases
types, including all the data syntax differences, connected users
differences etc etc etc.
Thinking through this problem, I was planning on building my own
database wrapper which would pick the appropriate engine. What I was
planning on doing is just creating a generic Database object as the
variable, but what I cannot figure out is how to cast without forcing
an unsupported database engine to be compiled. At least on the
Macintosh OS X, it is feasible for either database engine to be used;
even if the REALdatabase is only used to convert from the old format
to the new format.
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