Hi All

I need some explanation or link to some resource which explain me my doubts, so:

1) what is difrence between oracle-ds.xml and oracle-xa-ds.xml, i know that second one is used when we need "distributed transactions", but what is it this "distributed transactions" in simple words

2) when i have in oracle-ds.xml such lines:
<min-pool-size>5</min-pool-size>
<max-pool-size>10</max-pool-size>
is it enough to enable and run connection pool in jboss?? or should i configure something more???

3) when i have in oracle-ds.xml such lines:
<prepared-statement-cache-size>50</prepared-statement-cache-size>
is it enough to enable and run prepared statement cache in jboss?? or should i configure something more???

4) where i can observe stress of connection pool and statement cache? or do you know some free program which gather such statistic??

5) is in jboss prepared statement caching works per connection or per pool connection??, because i read that new jdbc allow to cache prepared statement in pool so one connection can use prepared statement which have been created in another connection but in this same pool

i use jboss 4.0.3RC1 and oracle 10g

thanks for any replay, i spend much time to find some information about that but nothing convince me in 100%, so i need exactly short answers:)
thanks a lot

Greats
Michael