71 lines
1.6 KiB
Python
71 lines
1.6 KiB
Python
# -*- encoding: utf-8 -*-
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# Copyright 2012 Bouvet ASA
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#
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# Author: Endre Karlson <endre.karlson@bouvet.no>
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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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from bufunfa.plugin import Plugin
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class StorageEngine(Plugin):
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"""
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Base class for storage engines
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"""
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__plugin_ns__ = 'bufunfa.storage'
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__plugin_type__ = 'storage'
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@abc.abstractmethod
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def get_connection(self, conf):
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"""
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Return a Connection instance based on the configuration settings.
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"""
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class Connection(object):
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"""
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A Connection
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"""
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__metaclass__ = abc.ABCMeta
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@abc.abstractmethod
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def __init__(self, conf):
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"""
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Constructor...
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"""
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@abc.abstractmethod
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def add_rate(self, context, values):
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"""
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Add a new rate
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"""
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@abc.abstractmethod
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def get_rates(self, context):
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"""
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Get all rates
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"""
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@abc.abstractmethod
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def update_rate(self, context, rate_id, values):
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"""
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Update a rate
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"""
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@abc.abstractmethod
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def delete_rate(self, context, rate_id):
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"""
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Delete a rate
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"""
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