Package CedarBackup2 :: Package extend :: Module mysql :: Class LocalConfig
[show private | hide private]
[frames | no frames]

Type LocalConfig

object --+
         |
        LocalConfig


Class representing this extension's configuration document.

This is not a general-purpose configuration object like the main Cedar Backup configuration object. Instead, it just knows how to parse and emit MySQL-specific configuration values. Third parties who need to read and write configuration related to this extension should access it through the constructor, validate and addConfig methods.

Note: Lists within this class are "unordered" for equality comparisons.

Method Summary
  __init__(self, xmlData, xmlPath, validate)
Initializes a configuration object.
  __repr__(self)
Official string representation for class instance.
  __str__(self)
Informal string representation for class instance.
  __cmp__(self, other)
Definition of equals operator for this class.
  validate(self)
Validates configuration represented by the object.
  addConfig(self, xmlDom, parentNode)
Adds a <mysql> configuration section as the next child of a parent.
    Inherited from object
  __delattr__(...)
x.__delattr__('name') <==> del x.name
  __getattribute__(...)
x.__getattribute__('name') <==> x.name
  __hash__(x)
x.__hash__() <==> hash(x)
  __new__(T, S, ...)
T.__new__(S, ...) -> a new object with type S, a subtype of T
  __reduce__(...)
helper for pickle
  __reduce_ex__(...)
helper for pickle
  __setattr__(...)
x.__setattr__('name', value) <==> x.name = value

Property Summary
  mysql: Mysql configuration in terms of a MysqlConfig object.

Instance Method Details

__init__(self, xmlData=None, xmlPath=None, validate=True)
(Constructor)

Initializes a configuration object.

If you initialize the object without passing either xmlData or xmlPath then configuration will be empty and will be invalid until it is filled in properly.

No reference to the original XML data or original path is saved off by this class. Once the data has been parsed (successfully or not) this original information is discarded.

Unless the validate argument is False, the LocalConfig.validate method will be called (with its default arguments) against configuration after successfully parsing any passed-in XML. Keep in mind that even if validate is False, it might not be possible to parse the passed-in XML document if lower-level validations fail.
Parameters:
xmlData - XML data representing configuration.
           (type=String data.)
xmlPath - Path to an XML file on disk.
           (type=Absolute path to a file on disk.)
validate - Validate the document after parsing it.
           (type=Boolean true/false.)
Raises:
ValueError - If both xmlData and xmlPath are passed-in.
ValueError - If the XML data in xmlData or xmlPath cannot be parsed.
ValueError - If the parsed configuration document is not valid.
Overrides:
__builtin__.object.__init__

Note: It is strongly suggested that the validate option always be set to True (the default) unless there is a specific need to read in invalid configuration from disk.

__repr__(self)
(Representation operator)

Official string representation for class instance.
Overrides:
__builtin__.object.__repr__

__str__(self)
(Informal representation operator)

Informal string representation for class instance.
Overrides:
__builtin__.object.__str__

__cmp__(self, other)
(Comparison operator)

Definition of equals operator for this class. Lists within this class are "unordered" for equality comparisons.
Parameters:
other - Other object to compare to.
Returns:
-1/0/1 depending on whether self is <, = or > other.

validate(self)

Validates configuration represented by the object.

The compress mode must be filled in. Then, if the 'all' flag is set, no databases are allowed, and if the 'all' flag is not set, at least one database is required.
Raises:
ValueError - If one of the validations fails.

addConfig(self, xmlDom, parentNode)

Adds a <mysql> configuration section as the next child of a parent.

Third parties should use this function to write configuration related to this extension.

We add the following fields to the document:
  user           //cb_config/mysql/user
  password       //cb_config/mysql/password
  compressMode   //cb_config/mysql/compress_mode
  all            //cb_config/mysql/all
We also add groups of the following items, one list element per item:
  database       //cb_config/mysql/database
Parameters:
xmlDom - DOM tree as from impl.createDocument().
parentNode - Parent that the section should be appended to.

Property Details

mysql

Mysql configuration in terms of a MysqlConfig object.

Generated by Epydoc 2.1 on Thu Mar 29 20:58:30 2007 http://epydoc.sf.net