import sys
from sqlalchemy.connectors import Connector
class ZxJDBCConnector(Connector):
driver = 'zxjdbc'
supports_sane_rowcount = False
supports_sane_multi_rowcount = False
supports_unicode_binds = True
supports_unicode_statements = sys.version > '2.5.0+'
description_encoding = None
default_paramstyle = 'qmark'
jdbc_db_name = None
jdbc_driver_name = None
@classmethod
def dbapi(cls):
from com.ziclix.python.sql import zxJDBC
return zxJDBC
def _driver_kwargs(self):
"""Return kw arg dict to be sent to connect()."""
return {}
def _create_jdbc_url(self, url):
"""Create a JDBC url from a :class:`~sqlalchemy.engine.url.URL`"""
return 'jdbc:%s://%s%s/%s' % (self.jdbc_db_name, url.host,
url.port is not None and ':%s' % url.port or '',
url.database)
def create_connect_args(self, url):
opts = self._driver_kwargs()
opts.update(url.query)
return [[self._create_jdbc_url(url), url.username, url.password, self.jdbc_driver_name],
opts]
def is_disconnect(self, e):
if not isinstance(e, self.dbapi.ProgrammingError):
return False
e = str(e)
return 'connection is closed' in e or 'cursor is closed' in e
def _get_server_version_info(self, connection):
# use connection.connection.dbversion, and parse appropriately
# to get a tuple
raise NotImplementedError()
|