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# Copyright 2020 Google LLC All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Spanner DB API exceptions."""
class Warning(Exception):
"""Important DB API warning."""
pass
class Error(Exception):
"""The base class for all the DB API exceptions.
Does not include :class:`Warning`.
"""
pass
class InterfaceError(Error):
"""
Error related to the database interface
rather than the database itself.
"""
pass
class DatabaseError(Error):
"""Error related to the database."""
pass
class DataError(DatabaseError):
"""
Error due to problems with the processed data like
division by zero, numeric value out of range, etc.
"""
pass
class OperationalError(DatabaseError):
"""
Error related to the database's operation, e.g. an
unexpected disconnect, the data source name is not
found, a transaction could not be processed, a
memory allocation error, etc.
"""
pass
class IntegrityError(DatabaseError):
"""
Error for cases of relational integrity of the database
is affected, e.g. a foreign key check fails.
"""
pass
class InternalError(DatabaseError):
"""
Internal database error, e.g. the cursor is not valid
anymore, the transaction is out of sync, etc.
"""
pass
class ProgrammingError(DatabaseError):
"""
Programming error, e.g. table not found or already
exists, syntax error in the SQL statement, wrong
number of parameters specified, etc.
"""
pass
class NotSupportedError(DatabaseError):
"""
Error for case of a method or database API not
supported by the database was used.
"""
pass
class RetryAborted(OperationalError):
"""
Error for case of no aborted transaction retry
is available, because of underlying data being
changed during a retry.
"""
pass