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� >��g� � �� � d dl mZ d dlZd dlZd dlmZ d dlmZ ej rddlmZ ddl m Z ddl m Z G d � d ej � Z G d � d e � Z G d � de � Zy)� )� annotationsN)�Any)�ClassVar� )� Connection)�DBAPIConnection)�Dialectc �� � e Zd ZU dZdZdZded< ej d d�� Z ej d d�� Z dd�Z ej dd �� Z dd �Z y )�ConnectionCharacteristica� An abstract base for an object that can set, get and reset a per-connection characteristic, typically one that gets reset when the connection is returned to the connection pool. transaction isolation is the canonical example, and the ``IsolationLevelCharacteristic`` implementation provides this for the ``DefaultDialect``. The ``ConnectionCharacteristic`` class should call upon the ``Dialect`` for the implementation of each method. The object exists strictly to serve as a dialect visitor that can be placed into the ``DefaultDialect.connection_characteristics`` dictionary where it will take effect for calls to :meth:`_engine.Connection.execution_options` and related APIs. .. versionadded:: 1.4 � F�ClassVar[bool]� transactionalc � � y)zNReset the characteristic on the DBAPI connection to its default value.Nr ��self�dialect� dbapi_conns �R/opt/hc_python/lib64/python3.12/site-packages/sqlalchemy/engine/characteristics.py�reset_characteristicz-ConnectionCharacteristic.reset_characteristic, � � � c � � y)z<set characteristic on the DBAPI connection to a given value.Nr �r r r �values r �set_characteristicz+ConnectionCharacteristic.set_characteristic3 r r c �* � | j |||� y)z�set characteristic on the :class:`_engine.Connection` to a given value. .. versionadded:: 2.0.30 - added to support elements that are local to the :class:`_engine.Connection` itself. N)r �r r �connr r s r � set_connection_characteristicz6ConnectionCharacteristic.set_connection_characteristic9 s � � � � ���U�;r c � � y)zXGiven a DBAPI connection, get the current value of the characteristic. Nr r s r �get_characteristicz+ConnectionCharacteristic.get_characteristicI r r c �& � | j ||� S )z�Given a :class:`_engine.Connection`, get the current value of the characteristic. .. versionadded:: 2.0.30 - added to support elements that are local to the :class:`_engine.Connection` itself. )r! �r r r r s r � get_connection_characteristicz6ConnectionCharacteristic.get_connection_characteristicR s � � �&�&�w� �;�;r N�r r r r �return�None�r r r r r r r& r' � r r r r r r r r r& r' �r r r r r& r �r r r r r r r& r )�__name__� __module__� __qualname__�__doc__� __slots__r �__annotations__�abc�abstractmethodr r r r! r$ r r r r r s � ��& �I�$)�M�>�)����� ��,;�� �� �� ���K� �K�,;�K�DG�K� �K� �K� <��<� �<� $� <� � <� � <� ��� � � �,;� � � � � � <� � <�&0� <�>M� <� � <r r c �` � e Zd ZU dZdZded< d d�Z d d�Z d d�Zy) � IsolationLevelCharacteristicz0Manage the isolation level on a DBAPI connectionTr r c �& � |j |� y �N)�reset_isolation_levelr s r r z1IsolationLevelCharacteristic.reset_characteristicd s � � �%�%�j�1r c �( � |j ||� y r7 )� _assert_and_set_isolation_levelr s r r z/IsolationLevelCharacteristic.set_characteristici s � � �/�/� �E�Br c �$ � |j |� S r7 )�get_isolation_levelr s r r! z/IsolationLevelCharacteristic.get_characteristicn s � � �*�*�:�6�6r Nr% r( r* ) r, r- r. r/ r r1 r r r! r r r r5 r5 _ ss � �:�$(�M�>�(�2� �2�,;�2� �2� C� �C�,;�C�DG�C� �C� 7� �7�,;�7� �7r r5 c � � e Zd ZU dZdZded< d d�Z d d�Z d d�Z dd�Z dd �Z y )�LoggingTokenCharacteristiczgManage the 'logging_token' option of a :class:`_engine.Connection`. .. versionadded:: 2.0.30 Fr r c � � y r7 r r s r r z/LoggingTokenCharacteristic.reset_characteristic} s � � r c � � t � �r7 ��NotImplementedErrorr s r r z-LoggingTokenCharacteristic.set_characteristic� � � � "�#�#r c �$ �� �r �fd�|_ y |` y )Nc � �� d��d| ��S )N�[z] r )�msgr s �r �<lambda>zJLoggingTokenCharacteristic.set_connection_characteristic.<locals>.<lambda>� s �� �u�c�2Jr )�_message_formatterr s `r r z8LoggingTokenCharacteristic.set_connection_characteristic� s �� � �&J�D� #��'r c � � t � �r7 rA r s r r! z-LoggingTokenCharacteristic.get_characteristic� rC r c �: � |j j dd � S )N� logging_token)�_execution_options�getr# s r r$ z8LoggingTokenCharacteristic.get_connection_characteristic� s � � �&�&�*�*�?�D�A�Ar Nr% r( r) r* r+ ) r, r- r. r/ r r1 r r r r! r$ r r r r> r> t s� � �� %*�M�>�)� � � �,;� � � � $� �$�,;�$�DG�$� �$� (�� (� � (� $� (� � (� � (�$� �$�,;�$� �$� B� �B�&0�B�>M�B� �Br r> )� __future__r r2 �typingr r � TYPE_CHECKING�baser � interfacesr r �ABCr r5 r> r r r �<module>rU sW �� #� � � � � ��� �+�#�H<�s�w�w� H<�V7�#;� 7�*'B�!9� 'Br
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