Ladies and gentlemen,
We are currently studying the SAP DB source code in order to investigate the
complexity of implementing specific functionality which is currently missing
but required for a project of ours.
Our first area of interest is the session scheduler. What we would like to
do is integrating SAP DB in a proprietary security infrastructure of ours,
the integration would require us to handle one particular scheduling event -
a session context switch (referring to the SAP layer, not the OS layer),
when a specific session enters or leaves the "running" status (in other
words, when a session scheduling quantum starts or expires). Would it be
possible for you to point us to the source code area we should have a look
at (a specific directory, file or even line of code), we'd highly appreciate
it.
Our second concern is the LONG data type support. As far as we know, SAP DB
currently does not provide random access to LONG fields.
What would be your estimation of the complexity of implementing this
functionality after a fair period of code study? It is our suspicion - based
on our past research - that implementing random read access to LONGs would
be _relatively_ straightforward whereas write access would require
significant changes to the transaction model, in any case we assume that the
introduction of random access of database data would require a modification
of the general persistence layer because SAP DB does not have any knowledge
of types other than binary streams at the persistence layer level (as far as
we know).
The current mix of languages and internal file naming conventions make it
hard for us to get the "big picture", we hope that you can provide us with
some insights.
Thanks in advance!
cheers,
Horst G Reiterer
Chief Executive Officer
netarray, Austria
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