An entity person is mapped to a table PERSON and has a collection-valued persistence field otherUsedNames that stores names used by a person. The other used Names field is mapped to a separate table…

The correct answer is D. @ElementCollection. CollectionTableSpecifies the table that is used for the mapping of collections of basic or embeddable types. Applied to the collection-valued field or property. Example:@Entity public class WealthyPerson extends Person { @ElementCollection @CollectionTable(name="HOMES") // use…

Entity Relationships

Question

An entity person is mapped to a table PERSON and has a collection-valued persistence field otherUsedNames that stores names used by a person. The other used Names field is mapped to a separate table called NAMES. Which code fragment correctly defines such field?

Options

A@ElementCollection (name = "NAMES")
B@Element collection
C@ElementCollection
D@ElementCollection

How the community answered

(40 responses)

A
3% (1)
B
10% (4)
C
5% (2)
D
83% (33)

Explanation

CollectionTableSpecifies the table that is used for the mapping of collections of basic or embeddable types. Applied to the collection-valued field or property. Example:@Entity public class WealthyPerson extends Person { @ElementCollection @CollectionTable(name="HOMES") // use default join column name Not B: No such thing as @ElementTable in Java. not C: SecondaryTablespecifies a secondary table for the annotated entity class. Specifying one or more secondary tables indicates that the data for the entity class is stored across multiple

Topics

#ElementCollection#CollectionTable#table mapping#collection-valued field

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