Object getIdentifier(
  Object entity
)

Return the id of the entity. A generated id is not guaranteed to be available until after the database insert has occurred. Returns null if the entity does not yet have an id.

Parameters:

entity - entity instance

Returns:

id of the entity.

Throws:

IllegalArgumentException - if the object is found not to be an entity.

Since:

Jakarta Persistence (JPA) 1.0