sqlalchemy.orm.events.InstrumentationEvents

class documentation

class InstrumentationEvents(event.Events):

Events related to class instrumentation events.

The listeners here support being established against any new style class, that is any object that is a subclass of 'type'. Events will then be fired off for events against that class. If the "propagate=True" flag is passed to event.listen(), the event will fire off for subclasses of that class as well.

The Python type builtin is also accepted as a target, which when used has the effect of events being emitted for all classes.

Note the "propagate" flag here is defaulted to True, unlike the other class level events where it defaults to False. This means that new subclasses will also be the subject of these events, when a listener is established on a superclass.

Class Method	`_accept_with`	Undocumented
Class Method	`_clear`	Undocumented
Class Method	`_listen`	Undocumented
Method	`attribute_instrument`	Called when an attribute is instrumented.
Method	`class_instrument`	Called after the given class is instrumented.
Method	`class_uninstrument`	Called before the given class is uninstrumented.
Class Variable	`_target_class_doc`	Undocumented

Inherited from Events:

Class Method	`_remove`	Undocumented
Static Method	`_set_dispatch`	Undocumented

@classmethod
def _accept_with(cls, target):

overrides sqlalchemy.event.base.Events._accept_with

Undocumented

@classmethod
def _clear(cls):

overrides sqlalchemy.event.base.Events._clear

Undocumented

@classmethod
def _listen(cls, event_key, propagate=True, **kw):

overrides sqlalchemy.event.base.Events._listen

Undocumented

def attribute_instrument(self, cls, key, inst):

Called when an attribute is instrumented.

def class_instrument(self, cls):

Called after the given class is instrumented.

To get at the .ClassManager, use .manager_of_class.

def class_uninstrument(self, cls):

Called before the given class is uninstrumented.

To get at the .ClassManager, use .manager_of_class.

_target_class_doc: str =

Undocumented