JPA Method
in jakarta.persistence.EntityManager

void refresh(
  Object entity, 
  Map<String,Object> properties
)


Refresh the state of the given managed entity instance from the database, using the specified properties, and overwriting unflushed changes made to the entity, if any. This operation cascades to every entity related by an association marked cascade=REFRESH.

If a vendor-specific property or hint is not recognized, it is silently ignored.

Parameters:
entity - a managed entity instance
properties - standard and vendor-specific properties and hints
Throws:
IllegalArgumentException - if the instance is not an entity or the entity is not managed
TransactionRequiredException - if there is no transaction when invoked on a container-managed entity manager of type {@link PersistenceContextType#TRANSACTION}
EntityNotFoundException - if the entity no longer exists in the database
Since:
JPA 2.0