Hibernate / Hibernate interview questions II
How do I map a composite key in Hibernate?
The EmbeddedId and IdClass annotations are used to denote composite primary keys.
The following are some of the rules that is applied for composite primary keys.
- The primary key class must be public and must have a public no-arg constructor.
- The primary key class must be serializable.
- The primary key class must define equals and hashCode methods.
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