diff options
Diffstat (limited to 'lib/sqlalchemy/interfaces.py')
| -rw-r--r-- | lib/sqlalchemy/interfaces.py | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/lib/sqlalchemy/interfaces.py b/lib/sqlalchemy/interfaces.py index ae92dc50d..f9c21d246 100644 --- a/lib/sqlalchemy/interfaces.py +++ b/lib/sqlalchemy/interfaces.py @@ -12,6 +12,11 @@ class PoolListener(object): Usage:: + class MyListener(PoolListener): + def connect(self, dbapi_con, con_record): + '''perform connect operations''' + # etc. + # create a new pool with a listener p = QueuePool(..., listeners=[MyListener()]) @@ -19,10 +24,9 @@ class PoolListener(object): p.add_listener(MyListener()) # usage with create_engine() - e = create_engine("url://", ...) - e.pool.add_listener(MyListener()) + e = create_engine("url://", listeners=[MyListener()]) - All of the standard connection [sqlalchemy.pool#Pool] types can + All of the standard connection :class:`~sqlalchemy.pool.Pool` types can accept event listeners for key connection lifecycle events: creation, pool check-out and check-in. There are no events fired when a connection closes. |