Exam 1z0-898 topic 1 question 23 discussion

Actual exam question from Oracle's 1z0-898

Question #: 23
Topic #: 1

The developer is creating a Java Persistence model for a legacy database. The database contains customer and subscriptions.
The subscriptions table has a foreign key to the Customer table, a foreign key to the magazines table, and a column that stores a java.util.Date (the subscription expiration date).
The developer wants to create entities Customer and subscription to model these tables and to represent the relationship between customer and subscription as a java.util.Map.
Which one of the following fields of the Customer entity accomplishes this task?

A. @OneToMany @joinColumn (name = "Customer - FK") Map <Magzine, Data> subscriptions;
B. @ElementCollection Map <Magzine, Data> subscriptions
C. @OneToMany @JoinTable (name = "Subscriptions") Map <Magzine, Data> subscriptions;
D. @ElementCollection @CollectionTable (name = "subscriptions") Map <Magazine, Data> subscriptions
E. @ElementCollection @CollectionTable (Name = "Subscriptions") @Temporal (TemporalType.DATE)

Show Suggested Answer

Suggested Answer: E 🗳️
* The ElementCollection values are always stored in a separate table. The table is defined through the @CollectionTable annotation or the <collection-table> element.
* Annotation Type Temporal
This annotation must be specified for persistent fields or properties of type java.util.Date and java.util.Calendar.
Reference: javax.persistence, Annotation Type Temporal

by [deleted] at April 4, 2025, 2:48 p.m.

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