Jakarta Persistence (JPA) Method

SingularAttribute<X,Y> getDeclaredId(
  Class<Y> type
)

Return the attribute that corresponds to the id attribute declared by the entity or mapped superclass.
Parameters:
type - the type of the represented declared id attribute
Returns:
declared id attribute.
Throws:
IllegalArgumentException - if id attribute of the given type is not declared in the identifiable type or if the identifiable type has an id class.
Since:
Jakarta Persistence (JPA) 1.0