|Question ID 4616|| |
If a Persistence application locks entity x with a pessimistic lock, which statement is true?
|Option A|| |
A. The Persistent provider will lock the database row(s) that correspond to all persistent fields of properties of an instance, including element collections.
|Option B|| |
B. Only single table per class hierarchy mapping is supported with this lock type.
|Option C|| |
C. A Persistence provider will lock the entity relationships for which the locked entity contains the foreign key.
|Option D|| |
D. A separate lock statement must be called for each subclass in entity hierarchy.