sqlalchemy.orm.events._EventsHold

class documentation

class _EventsHold(event.RefCollection[_ET]): (source)

Known subclasses: sqlalchemy.orm.events._InstanceEventsHold, sqlalchemy.orm.events._MapperEventsHold

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Hold onto listeners against unmapped, uninstrumented classes. Establish _listen() for that class' mapper/instrumentation when those objects are created for that class.

Class HoldEvents Undocumented
Class Method populate Undocumented
Method __init__ Undocumented
Method remove Undocumented
Class Variable all_holds Undocumented
Instance Variable class_ Undocumented
Class Method _clear Undocumented

Inherited from RefCollection:

Class Variable __slots__ Undocumented
Class Variable ref Undocumented
Method _memoized_attr_ref Undocumented

Inherited from MemoizedSlots (via RefCollection):

Method __getattr__ Undocumented
Method _fallback_getattr Undocumented
@classmethod
def populate(cls, class_: Union[DeclarativeAttributeIntercept, DeclarativeMeta, type], subject: Union[ClassManager[_O], Mapper[_O]]): (source)

Undocumented

def __init__(self, class_: Union[DeclarativeAttributeIntercept, DeclarativeMeta, type]): (source)

Undocumented

def remove(self, event_key: _EventKey[_ET]): (source)

Undocumented

all_holds: weakref.WeakKeyDictionary[Any, Any] = (source)
overridden in sqlalchemy.orm.events._InstanceEventsHold, sqlalchemy.orm.events._MapperEventsHold

Undocumented

class_ = (source)

Undocumented

@classmethod
def _clear(cls): (source)

Undocumented