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.. _orm_event_toplevel:
ORM Events
==========
The ORM includes a wide variety of hooks available for subscription.
.. versionadded:: 0.7
The event supersedes the previous system of "extension" classes.
For an introduction to the event API, see :ref:`event_toplevel`. Non-ORM events
such as those regarding connections and low-level statement execution are described in
:ref:`core_event_toplevel`.
Attribute Events
----------------
.. autoclass:: sqlalchemy.orm.events.AttributeEvents
:members:
Mapper Events
---------------
.. autoclass:: sqlalchemy.orm.events.MapperEvents
:members:
Instance Events
---------------
.. autoclass:: sqlalchemy.orm.events.InstanceEvents
:members:
Session Events
--------------
.. autoclass:: sqlalchemy.orm.events.SessionEvents
:members:
Instrumentation Events
-----------------------
.. automodule:: sqlalchemy.orm.instrumentation
.. autoclass:: sqlalchemy.orm.events.InstrumentationEvents
:members:
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