UniqueAttribute Class

Creates a unique index on a table column that is mapped to an entity class‘s field/property.

Declaration

UniqueAttribute = class(
    TCustomAttribute
)

Remarks

You can apply this attribute exclusively or combine it with the IndexedAttribute to make the resulting column index unique. Refer to the IndexedAttribute topic for an example on how to use the UniqueAttribute.

Inheritance

TObject

TCustomAttribute

UniqueAttribute