public void Delete()
{
switch (PersistenceState)
{
case PersistenceState.New:
case PersistenceState.NewAndChanged:
PersistenceState = PersistenceState.Deleted;
ExecuteAction(new ClearRelationshipsAction(RunningTransaction.RelationshipPersistenceProvider, null, this, this));
break;
case PersistenceState.HasUid:
case PersistenceState.Loaded:
case PersistenceState.LoadedAndChanged:
PersistenceState = PersistenceState.Delete;
ExecuteAction(new ClearRelationshipsAction(RunningTransaction.RelationshipPersistenceProvider, null, this, this));
break;
case PersistenceState.Delete:
case PersistenceState.ForceDelete:
break;
case PersistenceState.OutOfScope:
throw new InvalidOperationException("The transaction for this object has already ended.");
case PersistenceState.Persisted:
if (DbTransaction != Transaction.RunningTransaction)
{
throw new InvalidOperationException("This object was already flushed to the data store.");
}
break;
case PersistenceState.Error:
throw new InvalidOperationException("The object suffered an unexpected failure.");
case PersistenceState.DoesntExist:
throw new InvalidOperationException($"{GetEntity().Name} with key {GetKey()?.ToString() ?? "<NULL>"} couldn't be loaded from the database.");
default:
throw new NotImplementedException(string.Format("The PersistenceState '{0}' is not yet implemented.", PersistenceState.ToString()));
}
}
void OGM.Save()
{
switch (PersistenceState)
{
case PersistenceState.New:
throw new NotSupportedException(string.Format("You created an instance of {0}, but inside this transaction but did not set any properties. If you did this intentionally, you can call the method 'SetChanged' on the instance before committing the transaction.", GetEntity().Name));
case PersistenceState.HasUid:
case PersistenceState.Loaded:
break;
case PersistenceState.NewAndChanged:
PersistenceProvider.NodePersistenceProvider.Insert(this);
PersistenceState = PersistenceState.Persisted;
break;
case PersistenceState.LoadedAndChanged:
PersistenceProvider.NodePersistenceProvider.Update(this);
PersistenceState = PersistenceState.Persisted;
break;
case PersistenceState.Persisted:
break;
case PersistenceState.Delete:
PersistenceProvider.NodePersistenceProvider.Delete(this);
PersistenceState = PersistenceState.Deleted;
return;
case PersistenceState.ForceDelete:
PersistenceProvider.NodePersistenceProvider.ForceDelete(this);
PersistenceState = PersistenceState.Deleted;
return;
case PersistenceState.OutOfScope:
case PersistenceState.Error:
throw new InvalidOperationException(string.Format("The {0} with key '{1}' cannot be saved because it's state was {2}.", GetEntity().Name, GetKey() ?? "<null>", PersistenceState.ToString()));
case PersistenceState.DoesntExist:
throw new InvalidOperationException($"{GetEntity().Name} with key {GetKey()?.ToString() ?? "<NULL>"} couldn't be loaded from the database.");
default:
throw new NotImplementedException(string.Format("The {0} with key '{1}' has an invalid/unknown state {2}.", GetEntity().Name, GetKey() ?? "<null>", PersistenceState.ToString()));
}
}
private void LazyGet()
{
switch (PersistenceState)
{
case PersistenceState.New:
case PersistenceState.NewAndChanged:
break;
case PersistenceState.HasUid:
RunningTransaction.NodePersistenceProvider.Load(this);
break;
case PersistenceState.Loaded:
case PersistenceState.LoadedAndChanged:
case PersistenceState.OutOfScope:
case PersistenceState.Persisted:
case PersistenceState.Delete:
case PersistenceState.ForceDelete:
break;
case PersistenceState.Deleted:
throw new InvalidOperationException("The object has been deleted, you cannot make changes to it anymore.");
case PersistenceState.Error:
throw new InvalidOperationException("The object suffered an unexpected failure.");
case PersistenceState.DoesntExist:
throw new InvalidOperationException($"{GetEntity().Name} with key {GetKey()?.ToString() ?? "<NULL>"} couldn't be loaded from the database.");
default:
throw new NotImplementedException(string.Format("The PersistenceState '{0}' is not yet implemented.", PersistenceState.ToString()));
}
}