java - How far do entity beans within entity beans go? -


i'm not sure if i'm asking correctly i'll try make clear can. have entity bean has foreign keys other entity beans. 1 of these foreign keys brings set of other entity beans. want entity bean out of each entity bean in set. it's this

bean 1 -> bean 2 -> bean 3

or

bean 1 gets bean 2 gets bean 3

i have hql query bringing collection of bean 1. know can @ bean 2 bean 1 able @ bean 3 bean 2 running original query? or need run separate hql query @ bean 3?

yes can bring entire tree in hql if need to. see reference information

a "fetch" join allows associations or collections of values initialized along parent objects using single select. particularly useful in case of collection. overrides outer join , lazy declarations of mapping file associations , collections. see section 19.1, “fetching strategies” more information.

from cat cat     inner join fetch cat.mate     left join fetch cat.kittens

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