37 lines
1.2 KiB
Python
37 lines
1.2 KiB
Python
##############################################################################
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#
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# Copyright (c) 2009 Zope Foundation and Contributors.
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# All Rights Reserved.
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#
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# This software is subject to the provisions of the Zope Public License,
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# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
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# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
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# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
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# FOR A PARTICULAR PURPOSE.
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#
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##############################################################################
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"""
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IOIDAllocator implementations.
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"""
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from __future__ import absolute_import
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import six
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import abc
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@six.add_metaclass(abc.ABCMeta)
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class AbstractOIDAllocator(object):
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# All of these allocators allocate 16 OIDs at a time. In the sequence
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# or table, value (n) represents (n * 16 - 15) through (n * 16). So,
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# value 1 represents OID block 1-16, 2 represents OID block 17-32,
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# and so on.
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@abc.abstractmethod
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def set_min_oid(self, cursor, oid):
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raise NotImplementedError()
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@abc.abstractmethod
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def new_oids(self, cursor):
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raise NotImplementedError()
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