Excluding specific field setters from Builder

[Kevin Day]

The use case is that I have a class that has 15 or 20 fields on it.  Of those, 2 should be conceptually immutable, even via the builder.  Think about this as the id field in a database - it would be a really bad thing if a user could change that in the object.

So the user shouldn't be able to do this:

myObj.toBuilder().myImmutableField().build();

Is there a way to achieve this?  The idea would be to actually block (or mark private), the builder's setter methods for certain fields...

Thanks!

[Martin Grajcar]

I guess, you can't make them final. When you add a Builder class with private setters for these fields, Lombok won't be able to generate them itself and will skip them. Untested.

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