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Chapter 17
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Identity constraints
====================

Binding Test
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**Schema**

.. literalinclude:: /../tests/fixtures/defxmlschema/chapter17/chapter17.xsd
   :language: xml
   :lines: 2-

**XML Document**

.. literalinclude:: /../tests/fixtures/defxmlschema/chapter17/chapter17.xml
   :language: xml
   :lines: 2-

**xsData XML Document**

.. literalinclude:: /../tests/fixtures/defxmlschema/chapter17/chapter17.xsdata.xml
   :language: xml
   :lines: 2-

**xsData JSON**

.. literalinclude:: /../tests/fixtures/defxmlschema/chapter17/chapter17.json
   :language: json

Example 17-13 Referencing an identity constraint in a restriction
*****************************************************************

.. literalinclude:: /../tests/fixtures/defxmlschema/chapter17/example1713.xsd
   :language: xml
   :lines: 3-

.. literalinclude:: /../tests/fixtures/defxmlschema/chapter17/example1713.py
   :language: python

.. admonition:: Samples Source
    :class: hint

    `Definitive XML Schema <http://www.datypic.com/books/defxmlschema/>`_
    by Priscilla Walmsley (c) 2012 Prentice Hall PTR