本文整理汇总了Python中cassandra.cluster.Cluster.refresh_user_type_metadata方法的典型用法代码示例。如果您正苦于以下问题：Python Cluster.refresh_user_type_metadata方法的具体用法？Python Cluster.refresh_user_type_metadata怎么用？Python Cluster.refresh_user_type_metadata使用的例子？那么恭喜您, 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cassandra.cluster.Cluster的用法示例。
在下文中一共展示了Cluster.refresh_user_type_metadata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: test_refresh_schema_type
# 需要导入模块: from cassandra.cluster import Cluster [as 别名]
# 或者: from cassandra.cluster.Cluster import refresh_user_type_metadata [as 别名]
def test_refresh_schema_type(self):
if get_server_versions()[0] < (2, 1, 0):
raise unittest.SkipTest('UDTs were introduced in Cassandra 2.1')
if PROTOCOL_VERSION < 3:
raise unittest.SkipTest('UDTs are not specified in change events for protocol v2')
# We may want to refresh types on keyspace change events in that case(?)
cluster = Cluster(protocol_version=PROTOCOL_VERSION)
session = cluster.connect()
keyspace_name = 'test1rf'
type_name = self._testMethodName
session.execute('CREATE TYPE IF NOT EXISTS %s.%s (one int, two text)' % (keyspace_name, type_name))
original_meta = cluster.metadata.keyspaces
original_test1rf_meta = original_meta[keyspace_name]
original_type_meta = original_test1rf_meta.user_types[type_name]
# only refresh one type
cluster.refresh_user_type_metadata('test1rf', type_name)
current_meta = cluster.metadata.keyspaces
current_test1rf_meta = current_meta[keyspace_name]
current_type_meta = current_test1rf_meta.user_types[type_name]
self.assertIs(original_meta, current_meta)
self.assertIs(original_test1rf_meta, current_test1rf_meta)
self.assertIsNot(original_type_meta, current_type_meta)
self.assertEqual(original_type_meta.as_cql_query(), current_type_meta.as_cql_query())
session.shutdown()