<?xml version="1.0" ?>

<xsd:schema xmlns="http://symfony.com/schema/dic/constraint-mapping"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema"
    targetNamespace="http://symfony.com/schema/dic/constraint-mapping"
    elementFormDefault="qualified">

  <xsd:annotation>
    <xsd:documentation><![CDATA[
      Symfony Validator Constraint Mapping Schema, version 1.0
      Authors: Bernhard Schussek

      A constraint mapping connects classes, properties and getters with
      validation constraints.
    ]]></xsd:documentation>
  </xsd:annotation>
  
  <xsd:element name="constraint-mapping" type="constraint-mapping" />
  
  <xsd:complexType name="constraint-mapping">
    <xsd:annotation>
      <xsd:documentation><![CDATA[
        The root element of the constraint mapping definition.
      ]]></xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="namespace" type="namespace" minOccurs="0" maxOccurs="unbounded" />
      <xsd:element name="class" type="class" maxOccurs="unbounded" />
    </xsd:sequence>
  </xsd:complexType>
  
  <xsd:complexType name="namespace">
    <xsd:annotation>
      <xsd:documentation><![CDATA[
        Contains the abbreviation for a namespace.
      ]]></xsd:documentation>
    </xsd:annotation>
    <xsd:simpleContent>
      <xsd:extension base="xsd:string">
        <xsd:attribute name="prefix" type="xsd:string" use="required" />
      </xsd:extension>
    </xsd:simpleContent>
  </xsd:complexType>
  
  <xsd:complexType name="class">
    <xsd:annotation>
      <xsd:documentation><![CDATA[
        Contains constraints for a single class.
        
        Nested elements may be class constraints, property and/or getter 
        definitions.
      ]]></xsd:documentation>
    </xsd:annotation>
    <xsd:choice minOccurs="0" maxOccurs="unbounded">
      <xsd:element name="group-sequence-provider" type="group-sequence-provider" minOccurs="0" maxOccurs="1" />
      <xsd:element name="group-sequence" type="group-sequence" minOccurs="0" maxOccurs="1" />
      <xsd:element name="constraint" type="constraint" minOccurs="0" maxOccurs="unbounded" />
      <xsd:element name="property" type="property" minOccurs="0" maxOccurs="unbounded" />
      <xsd:element name="getter" type="getter" minOccurs="0" maxOccurs="unbounded" />
    </xsd:choice>
    <xsd:attribute name="name" type="xsd:string" use="required" />
  </xsd:complexType>

  <xsd:complexType name="group-sequence">
    <xsd:annotation>
      <xsd:documentation><![CDATA[
        Contains the group sequence of a class. Each group should be written
        into a "value" tag.
      ]]></xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="value" type="value" minOccurs="1" maxOccurs="unbounded" />
    </xsd:sequence>
  </xsd:complexType>
  
  <xsd:complexType name="group-sequence-provider">
    <xsd:annotation>
      <xsd:documentation><![CDATA[
        Defines the name of the group sequence provider for a class.
      ]]></xsd:documentation>
    </xsd:annotation>
  </xsd:complexType>
  
  <xsd:complexType name="property">
    <xsd:annotation>
      <xsd:documentation><![CDATA[
        Contains constraints for a single property. The name of the property
        should be given in the "name" option.
      ]]></xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="constraint" type="constraint" maxOccurs="unbounded" />
    </xsd:sequence>
    <xsd:attribute name="name" type="xsd:string" use="required" />
  </xsd:complexType>
  
  <xsd:complexType name="getter">
    <xsd:annotation>
      <xsd:documentation><![CDATA[
        Contains constraints for a getter method. The name of the corresponding
        property should be given in the "property" option.
      ]]></xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="constraint" type="constraint" maxOccurs="unbounded" />
    </xsd:sequence>
    <xsd:attribute name="property" type="xsd:string" use="required" />
  </xsd:complexType>
  
  <xsd:complexType name="constraint" mixed="true">
    <xsd:annotation>
      <xsd:documentation><![CDATA[
        Contains a constraint definition. The name of the constraint should be
        given in the "name" option.
        
        May contain a single value, multiple "constraint" elements, 
        multiple "value" elements or multiple "option" elements.
      ]]></xsd:documentation>
    </xsd:annotation>
    <xsd:choice minOccurs="0">
      <xsd:element name="constraint" type="constraint" minOccurs="1" maxOccurs="unbounded" />
      <xsd:element name="option" type="option" minOccurs="1" maxOccurs="unbounded" />
      <xsd:element name="value" type="value" minOccurs="1" maxOccurs="unbounded" />
    </xsd:choice>
    <xsd:attribute name="name" type="xsd:string" use="required" />    
  </xsd:complexType>
  
  <xsd:complexType name="option" mixed="true">
    <xsd:annotation>
      <xsd:documentation><![CDATA[
        Contains a constraint option definition. The name of the option
        should be given in the "name" option.
        
        May contain a single value, multiple "value" elements or multiple
        "constraint" elements.
      ]]></xsd:documentation>
    </xsd:annotation>
    <xsd:choice minOccurs="0">
      <xsd:element name="constraint" type="constraint" minOccurs="1" maxOccurs="unbounded" />
      <xsd:element name="value" type="value" minOccurs="1" maxOccurs="unbounded" />
    </xsd:choice>
    <xsd:attribute name="name" type="xsd:string" use="required" />  
  </xsd:complexType>
  
  <xsd:complexType name="value" mixed="true">
    <xsd:annotation>
      <xsd:documentation><![CDATA[
        A value of an element.
        
        May contain a single value, multiple "value" elements or multiple
        "constraint" elements.
      ]]></xsd:documentation>
    </xsd:annotation>
    <xsd:choice minOccurs="0">
      <xsd:element name="constraint" type="constraint" minOccurs="1" maxOccurs="unbounded" />
      <xsd:element name="value" type="value" minOccurs="1" maxOccurs="unbounded" />
    </xsd:choice>
    <xsd:attribute name="key" type="xsd:string" use="optional" /> 
  </xsd:complexType>
</xsd:schema>