Hello i have this mapping
document -> (have many) items

in database I create view
SELECT d.id, sum(i.price) AS sum
FROM document d, item i
....

in file document.hbm.xml

<one-to-one name="sum" class="Sum" />

Sum.hbm.xml have id & sum property

Now, when I get first value sum is correct
but, when I add item to document relationship I get old sum.

How I get actual value ?
Any refresh ?

Thanks for help.