154 lines
3.7 KiB
Python
154 lines
3.7 KiB
Python
# This file is part of Tryton. The COPYRIGHT file at the top level of
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# this repository contains the full copyright notices and license terms.
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DatabaseIntegrityError = None
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DatabaseOperationalError = None
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class DatabaseInterface(object):
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'''
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Define generic interface for database connection
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'''
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flavor = None
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IN_MAX = 1000
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def __new__(cls, name=''):
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return object.__new__(cls)
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def __init__(self, name=''):
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self.name = name
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def connect(self):
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'''
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Connect to the database
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:return: the database
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'''
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raise NotImplementedError
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def get_connection(self, autocommit, readonly=False):
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'''Retrieve a connection on the database
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:param autocommit: a boolean to activate autocommit
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:param readonly: a boolean to specify if the transaction is readonly
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'''
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raise NotImplementedError
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def put_connection(self, connection, close=False):
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'''Release the connection
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:param close: if close is True the connection is discarded
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'''
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raise NotImplementedError
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def close(self):
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'''
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Close all connection
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'''
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raise NotImplementedError
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@classmethod
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def create(cls, connection, database_name):
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'''
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Create a database
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:param connection: the connection to the database
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:param database_name: the new database name
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'''
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raise NotImplementedError
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def drop(self, connection, database_name):
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'''
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Drop a database
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:param connection: the connection to the database
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:param database_name: the database name
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'''
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raise NotImplementedError
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def list(self):
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'''
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Get the list of database
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:return: a list of database name
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'''
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raise NotImplementedError
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def init(self):
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'''
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Initialize a database
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'''
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raise NotImplementedError
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def test(self):
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'''
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Test if it is a Tryton database.
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'''
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raise NotImplementedError
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def nextid(self, connection, table):
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'''
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Return the next sequenced id for a table.
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:param connection: a connection on the database
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:param table: the table name
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:return: an integer
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'''
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def setnextid(self, connection, table, value):
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'''
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Set the current sequenced id for a table.
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:param connection: a connection on the database
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:param table: the table name
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'''
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def currid(self, connection, table):
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'''
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Return the current sequenced id for a table.
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:param connection: a connection on the database
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:param table: the table name
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:return: an integer
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'''
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def update_auto_increment(self, connection, table, value):
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'''
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Update auto_increment value of table
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:param connection: a connection on the database
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:param table: the table name
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:param value: the auto_increment value
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'''
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pass
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@classmethod
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def lock(cls, connection, table):
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'''
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Lock the table
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:param connection: a connection on the database
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:param table: the table name
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'''
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raise NotImplementedError
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def has_constraint(self):
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'''
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Return True if database handle constraint.
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:return: a boolean
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'''
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raise NotImplementedError
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def has_returning(self):
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'''
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Return True if database implements RETURNING clause in INSERT or UPDATE
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statements.
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:return: a boolean
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'''
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return False
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def has_multirow_insert(self):
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'Return True if database supports multirow insert'
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return False
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