aestate.opera.DBPool.persistent_db.PersistentDB Class Reference

Collaboration diagram for aestate.opera.DBPool.persistent_db.PersistentDB:

Public Member Functions
def	__init__ (self, creator, maxusage=None, setsession=None, failures=None, ping=1, closeable=False, threadlocal=None, *args, **kwargs)
def	steady_connection (self)
def	connection (self, shareable=False)
def	dedicated_connection (self)

Public Attributes
	thread

Static Public Attributes
	version = __version__

Private Attributes
	_creator
	_maxusage
	_setsession
	_failures
	_ping
	_closeable
	_kwargs

Detailed Description

生成基于db-api2的数据库连接池对象

Definition at line 20 of file persistent_db.py.

Constructor & Destructor Documentation

__init__()

def aestate.opera.DBPool.persistent_db.PersistentDB.__init__	(		self,
			creator,
			maxusage = None,
			setsession = None,
			failures = None,
			ping = 1,
			closeable = False,
			threadlocal = None,
		*	args,
		**	kwargs
	)

设置持久性DB-API 2连接生成器。

创建者：返回新的DB-API 2的任意函数
    连接对象或符合DB-API 2的数据库模块
maxusage：连接池最大数量，0表示无限
setsession：可用于准备的SQL命令的可选列表
    会话，例如[“将日期样式设置为...”，“将时区设置为...”]
失败：可选的异常类或异常类的元组
    为此，应应用连接故障转移机制，
    如果默认值（OperationalError，InternalError）不足够
ping：确定何时应使用ping（）检查连接
    （0 =无=永不，1 =默认=每当被请求时，
    2 =创建游标时，4 =执行查询时，
    7 =始终，以及这些值的所有其他位组合）
closeable：设置为True将允许被关闭
threadlocal：线程独立

Definition at line 26 of file persistent_db.py.

Member Function Documentation

connection()

def aestate.opera.DBPool.persistent_db.PersistentDB.connection	(		self,
			shareable = False
	)

共享连接
长时间未关闭则不会被共享

Definition at line 76 of file persistent_db.py.

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dedicated_connection()

def aestate.opera.DBPool.persistent_db.PersistentDB.dedicated_connection

(

self

)

Alias for connection(shareable=False).

Definition at line 90 of file persistent_db.py.

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steady_connection()

def aestate.opera.DBPool.persistent_db.PersistentDB.steady_connection

(

self

)

Get a steady, non-persistent DB-API 2 connection.

Definition at line 69 of file persistent_db.py.

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Member Data Documentation

_closeable

aestate.opera.DBPool.persistent_db.PersistentDB._closeable

private

Definition at line 62 of file persistent_db.py.

_creator

aestate.opera.DBPool.persistent_db.PersistentDB._creator

private

Definition at line 57 of file persistent_db.py.

_failures

aestate.opera.DBPool.persistent_db.PersistentDB._failures

private

Definition at line 60 of file persistent_db.py.

_kwargs

aestate.opera.DBPool.persistent_db.PersistentDB._kwargs

private

Definition at line 63 of file persistent_db.py.

_maxusage

aestate.opera.DBPool.persistent_db.PersistentDB._maxusage

private

Definition at line 58 of file persistent_db.py.

_ping

aestate.opera.DBPool.persistent_db.PersistentDB._ping

private

Definition at line 61 of file persistent_db.py.

_setsession

aestate.opera.DBPool.persistent_db.PersistentDB._setsession

private

Definition at line 59 of file persistent_db.py.

thread

aestate.opera.DBPool.persistent_db.PersistentDB.thread

Definition at line 64 of file persistent_db.py.

version

aestate.opera.DBPool.persistent_db.PersistentDB.version = __version__

static

Definition at line 24 of file persistent_db.py.

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The documentation for this class was generated from the following file:

• aestate/opera/DBPool/persistent_db.py