Hi all,

I'm just trying out the jboss read-ahead strategy for cmp 20 beans and have some strange results.

I created the following finder method on my customer bean

<query-method>
<method-name>findAll_none</method-name>
<method-params/>
</query-method>
<jboss-ql><![CDATA[
SELECT OBJECT(c)
FROM Customer c
ORDER BY c.id
]]></jboss-ql>
<read-ahead>
on-find
<page-size>4</page-size>
<eager-load-group>basic</eager-load-group>
</read-ahead>


load group is as follows :

<load-group>
<load-group-name>basic</load-group-name>
<field-name>lastName</field-name>
<field-name>firstName</field-name>
<field-name>hasGoodCredit</field-name>
</load-group>


When running this query and iterating over the returned collection (5 records are in the table) the following
statements are sent to the db :

18:12:45,217 DEBUG [findAll_none] Executing SQL: SELECT t0_c.ID, t0_c.LAST_NAME, t0_c.FIRST_NAME, t0_c.HAS_GOOD_CREDIT, t0_c.ID FROM CUSTOMER t0_c ORDER BY t0_c.ID ASC
18:12:45,618 DEBUG [CustomerEJB] Executing SQL: SELECT ID,LAST_NAME, FIRST_NAME, HAS_GOOD_CREDIT FROM CUSTOMER WHERE (ID=?) OR (ID=?) OR (ID=?) OR (ID=?)
18:12:45,769 DEBUG [CustomerEJB] Executing SQL: SELECT ID,LAST_NAME, FIRST_NAME, HAS_GOOD_CREDIT FROM CUSTOMER WHERE (ID=?) OR (ID=?) OR (ID=?) OR (ID=?)
18:12:45,874 DEBUG [CustomerEJB] Executing SQL: SELECT ID,LAST_NAME, FIRST_NAME, HAS_GOOD_CREDIT FROM CUSTOMER WHERE (ID=?) OR (ID=?) OR (ID=?)
18:12:45,965 DEBUG [CustomerEJB] Executing SQL: SELECT ID,LAST_NAME, FIRST_NAME, HAS_GOOD_CREDIT FROM CUSTOMER WHERE (ID=?) OR (ID=?)
18:12:46,060 DEBUG [CustomerEJB] Executing SQL: SELECT LAST_NAME, FIRST_NAME, HAS_GOOD_CREDIT FROM CUSTOMER WHERE (ID=?)

I expected that after the initial SELECT the preload-cache would be loaded and that the next lookups would retrieve their data from this cache instead of going to the db.

Can anyone give me a clue on this ???

tx,

Roger;