Hi all,
I have something like this;

<component name="x" class="X" update="false">
<component name="ys" class="Y" >
<property name="y1" column="Y1" />
<property name="y2" column="Y2" />
</component>
</component>

here I cant prevent update, because I couldnt write update="false" to inner component definition;
What should I do to prevent updates?

you can write update="false" in nested components

How can I stop Hibernate to reflect changes to db (update queries) each time I changed the object?

I dont want any update or insert queries, I only want hibernate to go, get data, then go to sleep and wake up when I want to get another data.

session.evict()
session.setFlushMode(FlushMode.NEVER)
session.close()
...