Hibernate Interviewfragen und Antworten
Question: How does Hibernate distinguish between transient (i.e. newly instantiated) and detached objects?Answer: " Hibernate uses the version property, if there is one." If not uses the identifier value. No identifier value means a new object. This does work only for Hibernate managed surrogate keys. Does not work for natural keys and assigned (i.e. not managed by Hibernate) surrogate keys. " Write your own strategy with Interceptor.isUnsaved(). |
Zum Wiederholen speichern
Speichere diesen Eintrag als Lesezeichen, markiere ihn als schwierig oder lege ihn in einem Wiederholungsset ab.
Melde dich an, um Lesezeichen, schwierige Fragen und Wiederholungssets zu speichern.
Ist das hilfreich? Ja Nein
Am hilfreichsten laut Nutzern:
- What is Hibernate?
- What is ORM?
- What does an ORM solution comprises of?
- What are the different levels of ORM quality?
- What the Core interfaces are of hibernate framework?