In hibernate mapping file i have a many-to-one mapping. Many items are linked to one storeroom.

<many-to-one name="storeroom"
column="store_id"
not-null="true"
cascade="all"
/>

Does storeroom loaded when we get an item from database? For example i am using criteria to get an item . Will the storeroom object load also when item is loaded to session? If i have another criteria to get storeroom in the same session, will storeroom object loaded with item be returned or there will be a second storeroom object in the session?