# -*- coding: UTF-8 -*-
"""defines the exception classes for db api 2.0
"""

# $Id: dbapi20error.py,v 1.1 2003/10/02 16:37:36 moellenbeck Exp $

from exceptions import StandardError

class Warning(StandardError):
    """Exception raised for important warnings like data
    truncations while inserting, etc.
    """

class Error(StandardError):
    """Exception that is the base class of all other error
    exceptions. You can use this to catch all errors with one
    single 'except' statement. Warnings are not considered
    errors and thus should not use this class as base.
    """

class InterfaceError(Error):
    """Exception raised for errors that are related to the
    database interface rather than the database itself.
    """

class DatabaseError(Error):
    """Exception raised for errors that are related to the
    database.
    """

class DataError(DatabaseError):
    """Exception raised for errors that are due to problems with
    the processed data like division by zero, numeric value
    out of range, etc.
    """

class OperationalError(DatabaseError):
    """Exception raised for errors that are related to the
    database's operation and not necessarily under the control
    of the programmer, e.g. an unexpected disconnect occurs,
    the data source name is not found, a transaction could not
    be processed, a memory allocation error occurred during
    processing, etc.
    """

class IntegrityError(DatabaseError):
    """Exception raised when the relational integrity of the
    database is affected, e.g. a foreign key check fails.
    """

class InternalError(DatabaseError):
    """Exception raised when the database encounters an internal
    error, e.g. the cursor is not valid anymore, the
    transaction is out of sync, etc
    """

class ProgrammingError(DatabaseError):
    """Exception raised for programming errors, e.g. table not
    found or already exists, syntax error in the SQL
    statement, wrong number of parameters specified, etc.
    """

class NotSupportedError(DatabaseError):
    """Exception raised in case a method or database API was used
    which is not supported by the database, e.g. requesting a
    .rollback() on a connection that does not support
    transaction or has transactions turned off.
    """