Say I have a `createdAt` field in my `@Entity`. a...

# spring

[Pihentagy]

Say I have a createdAt field in my @Entity. and it gets its value as the Entity is created. Can this info be utilized, so that "all saved entity has non-null createdAt" at kotlin level, or do I have to check against null every time? Or I have no choice but declare it as

var timestamp: Instant? = null,

[debop]

I use like this

var createdAt: Instant = Instant.now()
protected set

[Sechaba]

No need for var, simple
val createdAt: Instant = Instant.now() also works
Default value is set when you create the entity before passing for repo save

[Sechaba]

Update you use copy and override updatedAt - if you have that field. Assuming you’re using data class of course

[Pihentagy]

Of course no data class.

[Pihentagy]

Sometimes I need to provide the timestamp manually.