35 lines
997 B
Python
35 lines
997 B
Python
# -*- coding: utf-8 -*-
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright (C) 2012 Yahoo! Inc. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import abc
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import six
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class Action(six.with_metaclass(abc.ABCMeta)):
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"""Base action class"""
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@abc.abstractmethod
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def execute(self, engine):
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"""Run the action"""
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@abc.abstractmethod
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def revert(self, engine):
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"""Undo all side effects of execute method"""
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