How To Calculate An Entity Property At INSERT Or UPDATE Time Via Hibernate @Generated
Description: This application is an example of calculating an entity property at INSERT or UPDATE time via Hibernate @Generated annotation.
Key points:
- annotate the entity property that should be calculated with @Generated(value = GenerationTime.ALWAYS) or @Generated(value = GenerationTime.INSERT)
- if the database schema is generated via JPA annotations then use columnDefinition element of @Column (in production, you should not rely on this practice)
- in production, add the SQL query expression in CREATE TABLE (check, schema-sql.sql)
