| Modifier and Type | Interface and Description |
|---|---|
| public interface | UniqueDelegate
Dialect-level delegate in charge of applying "uniqueness" to a column. |
| Modifier and Type | Class and Description |
|---|---|
| public class | DB2UniqueDelegate
DB2 does not allow unique constraints on nullable columns. |
| public class | DefaultUniqueDelegate
The default UniqueDelegate implementation for most dialects. |
| public class | InformixUniqueDelegate
Informix requires the constraint name to come last on the alter table. |
| public class |