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Hibernate / Hibernate 7 Basics Interview Questions

What are the new FindOptions in Jakarta Persistence 3.2 and Hibernate 7?

Jakarta Persistence 3.2 introduces FindOption, RefreshOption, and LockOption for fine-grained control over find/refresh/lock operations without separate methods for each combination. Hibernate 7 also adds session.findMultiple().

// Before JP 3.2: separate methods for different behaviours
// After: varargs options on find()
import jakarta.persistence.Timeouts;

// Find with pessimistic lock and no-wait timeout:
Book book = session.find(
    Book.class,
    isbn,
    LockModeType.PESSIMISTIC_WRITE,
    Timeouts.NO_WAIT  // fail immediately if locked
);

// Find bypassing second-level cache:
Book book2 = session.find(
    Book.class, isbn,
    CacheRetrieveMode.BYPASS
);

// session.findMultiple(): batch load multiple entities
List<Book> books = session.findMultiple(
    Book.class,
    List.of(isbn1, isbn2, isbn3)
);
// Loads all 3 in a single SELECT ... WHERE id IN (?,?,?)

// RefreshOption:
session.refresh(managedBook, LockModeType.PESSIMISTIC_READ);

// LockOption:
session.lock(managedBook, LockModeType.PESSIMISTIC_WRITE,
    Timeouts.of(5, TimeUnit.SECONDS));

What problem do FindOption/RefreshOption/LockOption solve in Jakarta Persistence 3.2?
What does session.findMultiple() provide that session.find() in a loop does not?

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