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deb-python-colander/docs/glossary.rst
2010-06-09 14:22:40 +00:00

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.. _glossary:
Glossary
========
.. glossary::
:sorted:
cstruct
A data structure generated by the
:meth:`colander.SchemaNode.serialize` method, capable of being
consumed by the :meth:`colander.SchemaNode.deserialize` method.
appstruct
A raw application data structure (a structure of complex Python
objects), passed to the :meth:`colander.SchemaNode.serialize`
method for serialization. The
:meth:`colander.SchemaNode.deserialize` method accepts a
:term:`cstruct` and returns an appstruct.
schema
A nested collection of :term:`schema node` objects representing
an arrangement of data.
schema node
A schema node is an object which can serialize an
:term:`appstruct` to a :term:`cstruct` and deserialize a
:term:`appstruct` from a :term:`cstruct` an (object derived from
:class:`colander.SchemaNode` or one of the colander Schema
classes).
type
An object representing a particular type of data (mapping,
boolean, string, etc) capable of serializing an :term:`appstruct`
and of deserializing a :term:`cstruct`. Colander has various
built-in types (:class:`colander.String`,
:class:`colander.Mapping`, etc) and may be extended with
additional types (see :ref:`defining_a_new_type`).
validator
A Colander validator callable. Accepts a ``node`` object and a
``value`` and either raises an :exc:`colander.Invalid` exception
or returns ``None``. Used as the ``validator=`` argument to a
schema node, ensuring that the input meets the requirements of
the schema. Built-in validators exist in Colander
(e.g. :class:`colander.OneOf`, :class:`colander.Range`, etc), and
new validators can be defined to extend Colander (see
:ref:`defining_a_new_validator`).