Why should I specify @Column( nullable = false )?

Question

I have an entity annotated with @Entity.
If I am responsible for creating the CREATE TABLE scripts why should I specify @Column( nullable

Answer 1

In your case there might not be actual benefit, but:

• if you are using your jpa provider to generate your schema (either via maven or via automatic generation like hbm2ddl.auto), then it matters
• if you configure your jpa provider to validate the schema against the entity model, then you need them to be in sync.