Hibernate 7.2 introduces the @EmbeddedTable annotation, which simplifies mapping embeddable objects to secondary database tables. Previously, developers had to use @SecondaryTable combined with @AttributeOverride for every individual field, which was verbose and error-prone. With @EmbeddedTable, a single annotation on the embedded field automatically maps all its columns to the specified secondary table. The post covers the motivation, a practical usage example with a test case, and key limitations: it is Hibernate-specific (not part of the Jakarta Persistence spec), marked @Incubating (API may change), and does not yet support nested embedded objects.
Table of contents
1. Overview2. The Problem With Traditional Mapping3. Using @EmbeddedTable4. The Limitations5. Conclusion3.6K Impressions1 Comment