isLoaded(entity, attributeName) - JPA PersistenceUnitUtil's method

Method
javax.persistence.PersistenceUnitUtil
boolean isLoaded(
  Object entity,
  String attributeName
)

Determine the load state of a given persistent attribute of an entity belonging to the persistence unit.
Parameters:
entity - entity instance containing the attribute
attributeName - name of attribute whose load state is to be determined
Returns:
false if entity's state has not been loaded or if the attribute state has not been loaded, else true
Since:
JPA 2.0