Optional ReadonlyallowWhether the application value may be null.
Optional ReadonlyautoWhether the storage backend generates this field on insert.
Optional ReadonlycolumnStorage column name; defaults to name.
Optional ReadonlydefaultApplication value used when a newly built row omits this field.
ReadonlynameLogical property name exposed on Yukari rows.
Optional ReadonlyprimaryWhether the field participates in primary-key lookups and row locators.
Optional ReadonlytypeValue conversion contract; defaults to Type.String.
Optional ReadonlyvalidatorsOne validator or a list executed before writes.
The common shape accepted for one entry in a Toshihiko schema.
Use FieldDefinition when a reusable declaration should retain its literal field name and concrete Field Type. This broader interface is the structural constraint used by SchemaDefinition.