BurstyPool(target_size=10, labels=None, database_role=None)Concrete session pool implementation:
"Pings" existing sessions via
session.existsbefore returning them.Creates a new session, rather than blocking, when
getis called on an empty pool.Discards the returned session, rather than blocking, when
putis called on a full pool.
Parameters | |
|---|---|
| Name | Description |
target_size |
int
max pool size |
labels |
dict (str -> str) or None
(Optional) user-assigned labels for sessions created by the pool. |
database_role |
str
(Optional) user-assigned database_role for the session. |
Methods
bind
bind(database)Associate the pool with a database.
| Parameter | |
|---|---|
| Name | Description |
database |
Database
database used by the pool to create sessions when needed. |
clear
clear()Delete all sessions in the pool.
get
get()Check a session out from the pool.
| Returns | |
|---|---|
| Type | Description |
Session | an existing session from the pool, or a newly-created session. |
put
put(session)Return a session to the pool.
Never blocks: if the pool is full, the returned session is discarded.
| Parameter | |
|---|---|
| Name | Description |
session |
Session
the session being returned. |