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authorEgor Tensin <Egor.Tensin@gmail.com>2017-01-28 03:11:23 +0300
committerEgor Tensin <Egor.Tensin@gmail.com>2017-01-28 03:11:23 +0300
commit7112abbe5dd8aebf44c097043f413a0542c05e5c (patch)
tree468bc272e40f6a960481290e2d16b84d08813f2b /vk/tracking/db/meta.py
parentvk: move file i/o to a separate module (diff)
downloadvk-scripts-7112abbe5dd8aebf44c097043f413a0542c05e5c.tar.gz
vk-scripts-7112abbe5dd8aebf44c097043f413a0542c05e5c.zip
add abstract classes for db readers/writers
Diffstat (limited to 'vk/tracking/db/meta.py')
-rw-r--r--vk/tracking/db/meta.py25
1 files changed, 25 insertions, 0 deletions
diff --git a/vk/tracking/db/meta.py b/vk/tracking/db/meta.py
new file mode 100644
index 0000000..024d9d8
--- /dev/null
+++ b/vk/tracking/db/meta.py
@@ -0,0 +1,25 @@
+# Copyright (c) 2017 Egor Tensin <Egor.Tensin@gmail.com>
+# This file is part of the "VK scripts" project.
+# For details, see https://github.com/egor-tensin/vk-scripts.
+# Distributed under the MIT License.
+
+import abc
+from collections.abc import Iterable
+
+class Writer(metaclass=abc.ABCMeta):
+ @abc.abstractmethod
+ def on_initial_status(self, user):
+ pass
+
+ @abc.abstractmethod
+ def on_status_update(self, user):
+ pass
+
+ @abc.abstractmethod
+ def on_connection_error(self, e):
+ pass
+
+class Reader(Iterable, metaclass=abc.ABCMeta):
+ @abc.abstractmethod
+ def __iter__(self):
+ pass