if ( li.isUninitialized() ) {
if ( li.getSession() == source ) {
return; //NOTE EARLY EXIT!
}
else {
throw new PersistentObjectException( "uninitialized proxy passed to persist()" );
}
}
entity = li.getImplementation();
}
else {
entity = object;
}
final String entityName;
if ( event.getEntityName() != null ) {
entityName = event.getEntityName();
}
else {
entityName = source.bestGuessEntityName( entity );
event.setEntityName( entityName );
}
final EntityEntry entityEntry = source.getPersistenceContext().getEntry( entity );
EntityState entityState = getEntityState( entity, entityName, entityEntry, source );
if ( entityState == EntityState.DETACHED ) {
// JPA 2, in its version of a "foreign generated", allows the id attribute value
// to be manually set by the user, even though this manual value is irrelevant.
// The issue is that this causes problems with the Hibernate unsaved-value strategy
// which comes into play here in determining detached/transient state.
//
// Detect if we have this situation and if so null out the id value and calculate the
// entity state again.
// NOTE: entityEntry must be null to get here, so we cannot use any of its values
EntityPersister persister = source.getFactory().getEntityPersister( entityName );
if ( ForeignGenerator.class.isInstance( persister.getIdentifierGenerator() ) ) {
if ( LOG.isDebugEnabled() && persister.getIdentifier( entity, source ) != null ) {
LOG.debugf( "Resetting entity id attribute to null for foreign generator" );
}
persister.setIdentifier( entity, null, source );
entityState = getEntityState( entity, entityName, entityEntry, source );
}
}
switch ( entityState ) {
case DETACHED:
throw new PersistentObjectException(
"detached entity passed to persist: " +
getLoggableName( event.getEntityName(), entity )
);
case PERSISTENT:
entityIsPersistent( event, createCache );