Hi!
For performance issues we have the need to cache some query result (i.e
a list of cayenne data objects);
As far as I have understood it's completely up to the developer to
determine if a previously cached result is still logically valid or not
(maybe this will change in Cayenne 3.0?).
The developer has to implement too, from scratch, a queries invalidation
mechanism.
In http://cwiki.apache.org/CAYDOC/caching-query-results.html is stated that:
<<It is important to understand that caching of *result lists* is done
independently from caching of *individual DataObjects and DataRows*.
Therefore the API is different as well. Also cached results lists _are
not synchronized across VMs (even the shared cache)._>>_
_So it seems that if my application is deployed in a cluster I have to
implement a custom _distributed_ invalidation mechanism.
_
_So my questions are:
1) Are my conclusions correct or not?
2) In case I'm right do u have any "pattern"/best practice/suggestion to
implement the afore mentioned mechanism in a fast , efficient way?
Thank you ,
Francesco.
_
_
