Description: A Hibernate proxy can be useful when a child entity can be persisted with a reference to its parent (@ManyToOne or @OneToOne association). In such cases, fetching the parent entity from the database (execute the SELECT statement) is a performance penalty and a pointless action. Hibernate can set the underlying foreign key value for an uninitialized proxy. This topic is discussed here.
A proxy can be unproxied via Hibernate.unproxy(). This method is available starting with Hibernate 5.2.10.
Key points:
- fetch a proxy via
JpaRepository#getOne() - unproxy the fetched proxy via
Hibernate.unproxy()
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