1 files changed, 0 insertions, 135 deletions
diff --git a/backends/objectstore.py b/backends/objectstore.py
deleted file mode 100644
index 7c5d1177..00000000
--- a/backends/objectstore.py
+++ /dev/null
@@ -1,135 +0,0 @@
-"""
-Abstract U1DB backend to handle storage using object stores (like CouchDB, for
-example.
-
-Right now, this is only used by CouchDatabase backend, but can also be
-extended to implement OpenStack or Amazon S3 storage, for example.
-"""
-
-from u1db.backends.inmemory import (
-    InMemoryDatabase,
-    InMemorySyncTarget,
-)
-from u1db import errors
-
-
-class ObjectStoreDatabase(InMemoryDatabase):
-    """
-    A backend for storing u1db data in an object store.
-    """
-
-    @classmethod
-    def open_database(cls, url, create, document_factory=None):
-        raise NotImplementedError(cls.open_database)
-
-    def __init__(self, replica_uid=None, document_factory=None):
-        super(ObjectStoreDatabase, self).__init__(
-            replica_uid,
-            document_factory=document_factory)
-        # sync data in memory with data in object store
-        if not self._get_doc(self.U1DB_DATA_DOC_ID):
-            self._init_u1db_data()
-        self._fetch_u1db_data()
-
-    #-------------------------------------------------------------------------
-    # methods from Database
-    #-------------------------------------------------------------------------
-
-    def _set_replica_uid(self, replica_uid):
-        super(ObjectStoreDatabase, self)._set_replica_uid(replica_uid)
-        self._store_u1db_data()
-
-    def _put_doc(self, doc):
-        raise NotImplementedError(self._put_doc)
-
-    def _get_doc(self, doc):
-        raise NotImplementedError(self._get_doc)
-
-    def get_all_docs(self, include_deleted=False):
-        raise NotImplementedError(self.get_all_docs)
-
-    def delete_doc(self, doc):
-        """Mark a document as deleted."""
-        old_doc = self._get_doc(doc.doc_id, check_for_conflicts=True)
-        if old_doc is None:
-            raise errors.DocumentDoesNotExist
-        if old_doc.rev != doc.rev:
-            raise errors.RevisionConflict()
-        if old_doc.is_tombstone():
-            raise errors.DocumentAlreadyDeleted
-        if old_doc.has_conflicts:
-            raise errors.ConflictedDoc()
-        new_rev = self._allocate_doc_rev(doc.rev)
-        doc.rev = new_rev
-        doc.make_tombstone()
-        self._put_and_update_indexes(old_doc, doc)
-        return new_rev
-
-    # index-related methods
-
-    def create_index(self, index_name, *index_expressions):
-        """
-        Create an named index, which can then be queried for future lookups.
-        """
-        raise NotImplementedError(self.create_index)
-
-    def delete_index(self, index_name):
-        """Remove a named index."""
-        super(ObjectStoreDatabase, self).delete_index(index_name)
-        self._store_u1db_data()
-
-    def _replace_conflicts(self, doc, conflicts):
-        super(ObjectStoreDatabase, self)._replace_conflicts(doc, conflicts)
-        self._store_u1db_data()
-
-    def _do_set_replica_gen_and_trans_id(self, other_replica_uid,
-                                         other_generation,
-                                         other_transaction_id):
-        super(ObjectStoreDatabase, self)._do_set_replica_gen_and_trans_id(
-            other_replica_uid,
-            other_generation,
-            other_transaction_id)
-        self._store_u1db_data()
-
-    #-------------------------------------------------------------------------
-    # implemented methods from CommonBackend
-    #-------------------------------------------------------------------------
-
-    def _put_and_update_indexes(self, old_doc, doc):
-        for index in self._indexes.itervalues():
-            if old_doc is not None and not old_doc.is_tombstone():
-                index.remove_json(old_doc.doc_id, old_doc.get_json())
-            if not doc.is_tombstone():
-                index.add_json(doc.doc_id, doc.get_json())
-        trans_id = self._allocate_transaction_id()
-        self._put_doc(doc)
-        self._transaction_log.append((doc.doc_id, trans_id))
-        self._store_u1db_data()
-
-    #-------------------------------------------------------------------------
-    # methods specific for object stores
-    #-------------------------------------------------------------------------
-
-    U1DB_DATA_DOC_ID = 'u1db_data'
-
-    def _fetch_u1db_data(self):
-        """
-        Fetch u1db configuration data from backend storage.
-        """
-        NotImplementedError(self._fetch_u1db_data)
-
-    def _store_u1db_data(self):
-        """
-        Save u1db configuration data on backend storage.
-        """
-        NotImplementedError(self._store_u1db_data)
-
-    def _init_u1db_data(self):
-        """
-        Initialize u1db configuration data on backend storage.
-        """
-        NotImplementedError(self._init_u1db_data)
-
-
-class ObjectStoreSyncTarget(InMemorySyncTarget):
-    pass