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SickRage/lib/shove/store/zodb.py

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# -*- coding: utf-8 -*-
'''
Zope Object Database store frontend.
shove's psuedo-URL for ZODB stores follows the form:
zodb:<path>
Where the path is a URL path to a ZODB FileStorage database. Alternatively, a
native pathname to a ZODB database can be passed as the 'engine' argument.
'''
try:
import transaction
from ZODB import FileStorage, DB
except ImportError:
raise ImportError('Requires ZODB library')
from shove.store import SyncStore
class ZodbStore(SyncStore):
'''ZODB store front end.'''
init = 'zodb://'
def __init__(self, engine, **kw):
super(ZodbStore, self).__init__(engine, **kw)
# Handle psuedo-URL
self._storage = FileStorage.FileStorage(self._engine)
self._db = DB(self._storage)
self._connection = self._db.open()
self._store = self._connection.root()
# Keeps DB in synch through commits of transactions
self.sync = transaction.commit
def close(self):
'''Closes all open storage and connections.'''
self.sync()
super(ZodbStore, self).close()
self._connection.close()
self._db.close()
self._storage.close()
__all__ = ['ZodbStore']