Package buildbot :: Package db :: Module dbspec :: Class ExpiringConnectionPool

Class ExpiringConnectionPool

twisted.enterprise.adbapi.ConnectionPool --+
                                           |
                                          ExpiringConnectionPool

A Connection pool that expires connections after a certain amount of idle time.

Instance Methods

__init__(self, dbapiName, max_idle=60, *args, **kwargs)
Create a new ConnectionPool.

source code

connect(self)
Return a database connection when one becomes available.

source code

disconnect(self, conn)
Disconnect a database connection associated with this pool.

source code

Inherited from twisted.enterprise.adbapi.ConnectionPool: __getstate__, __setstate__, close, finalClose, runInteraction, runOperation, runQuery, runWithConnection, start

Class Variables
Inherited from `twisted.enterprise.adbapi.ConnectionPool`: `CP_ARGS`, `good_sql`, `max`, `min`, `name`, `noisy`, `openfun`, `reconnect`, `running`

Instance Variables
Inherited from `twisted.enterprise.adbapi.ConnectionPool`: `connectionFactory`, `shutdownID`, `transactionFactory`

Method Details

init(self, dbapiName, max_idle=60, *args, **kwargs)
(Constructor)

source code

Create a new ConnectionPool.

Any positional or keyword arguments other than those documented here are passed to the DB-API object when connecting. Use these arguments to pass database names, usernames, passwords, etc.

Parameters:

max_idle - reconnect connections that have been idle more than this number of seconds.

Overrides: twisted.enterprise.adbapi.ConnectionPool.__init__

connect(self)

source code

Return a database connection when one becomes available.

This method blocks and should be run in a thread from the internal threadpool. Don't call this method directly from non-threaded code. Using this method outside the external threadpool may exceed the maximum number of connections in the pool.

Returns:: a database connection from the pool.
Overrides: twisted.enterprise.adbapi.ConnectionPool.connect: (inherited documentation)

disconnect(self, conn)

source code

Disconnect a database connection associated with this pool.

Note: This function should only be used by the same thread which called connect(). As with connect(), this function is not used in normal non-threaded twisted code.

Overrides: twisted.enterprise.adbapi.ConnectionPool.disconnect: (inherited documentation)

Class ExpiringConnectionPool

__init__(self, dbapiName, max_idle=60, *args, **kwargs) (Constructor)

connect(self)

disconnect(self, conn)

init(self, dbapiName, max_idle=60, *args, **kwargs)
(Constructor)