getIdentifier(entity) - JPA PersistenceUnitUtil's method
Method javax.persistence.PersistenceUnitUtil
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:
- JPA 2.0