本文整理汇总了Python中pymongo.topology.Topology.get_primary方法的典型用法代码示例。如果您正苦于以下问题：Python Topology.get_primary方法的具体用法？Python Topology.get_primary怎么用？Python Topology.get_primary使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类pymongo.topology.Topology的用法示例。
在下文中一共展示了Topology.get_primary方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: MongoClient
# 需要导入模块: from pymongo.topology import Topology [as 别名]
# 或者: from pymongo.topology.Topology import get_primary [as 别名]
#.........这里部分代码省略.........
except ConnectionFailure:
return default
@property
def address(self):
"""(host, port) of the current standalone, primary, or mongos, or None.
Accessing :attr:`address` raises :exc:`~.errors.InvalidOperation` if
the client is load-balancing among mongoses, since there is no single
address. Use :attr:`nodes` instead.
.. versionadded:: 3.0
"""
try:
return self._topology.get_direct_or_primary()
except InvalidOperation:
# Only one case where Topology throws InvalidOperation.
raise InvalidOperation(
'Cannot use "address" property when load balancing among'
' mongoses, use "nodes" instead.')
@property
def primary(self):
"""The (host, port) of the current primary of the replica set.
Returns ``None`` if this client is not connected to a replica set,
there is no primary, or this client was created without the
`replicaSet` option.
.. versionadded:: 3.0
MongoClient gained this property in version 3.0 when
MongoReplicaSetClient's functionality was merged in.
"""
return self._topology.get_primary()
@property
def secondaries(self):
"""The secondary members known to this client.
A sequence of (host, port) pairs. Empty if this client is not
connected to a replica set, there are no visible secondaries, or this
client was created without the `replicaSet` option.
.. versionadded:: 3.0
MongoClient gained this property in version 3.0 when
MongoReplicaSetClient's functionality was merged in.
"""
return self._topology.get_secondaries()
@property
def arbiters(self):
"""Arbiters in the replica set.
A sequence of (host, port) pairs. Empty if this client is not
connected to a replica set, there are no arbiters, or this client was
created without the `replicaSet` option.
"""
return self._topology.get_arbiters()
@property
def is_primary(self):
"""If this client if connected to a server that can accept writes.
True if the current server is a standalone, mongos, or the primary of
a replica set.
"""