edmx.xsd

<?xml version="1.0" encoding="utf-8"?>
<!--

  Technical Committee:
  OASIS Open Data Protocol (OData) TC
  https://www.oasis-open.org/committees/odata

  Chairs:
  - Ralf Handl (ralf.handl@sap.com), SAP SE
  - Michael Pizzo (mikep@microsoft.com), Microsoft

  Editors:
  - Ralf Handl (ralf.handl@sap.com), SAP SE
  - Michael Pizzo (mikep@microsoft.com), Microsoft

  Additional artifacts:
  This XML schema is one component of a Work Product which consists of:
  - OData Common Schema Definition Language (CSDL) XML Representation Version 4.01
  - OData EDMX XML Schema Version 4.01 (this document)
  - OData EDM XML Schema Version 4.01

  Related work:
  This specification replaces or supersedes:
  - OData EDMX XML Schema Version 4.0
  This work product is related to
  - OData Version 4.01
  - OData JSON Format Version 4.01

  Declared XML namespaces:
  - http://docs.oasis-open.org/odata/ns/edmx
  - http://docs.oasis-open.org/odata/ns/edm

  Abstract:
  The Open Data Protocol (OData) enables the creation of REST-based data
  services, which allow resources, identified using Uniform Resource
  Identifiers (URLs) and defined in a data model, to be published and
  edited by Web clients using simple HTTP messages. This document defines
  the URL syntax for requests and the serialization format for primitive
  literals in request and response payloads.

  Overview:
  This document describes the Entity Data Model part of CSDL.
  It is imported by the OData EDMX XML Schema, see additional artifacts.

  Together these two XML schemas define the shape of a well-formed CSDL XML document,
  but are not descriptive enough to define what a correct CSDL document MUST be
  in every imaginable use case. The prose specification document

  OData Common Schema Definition Language (CSDL) XML Representation Version 4.01
  http://docs.oasis-open.org/odata/odata-csdl-xml/v4.01/odata-csdl-xml-v4.01.docx

  defines additional rules that correct CSDL XML documents MUST fulfill.
  In case of doubt on what makes a CSDL XML document correct the rules defined in the
  prose specification document take precedence.

-->
<xs:schema elementFormDefault="qualified" attributeFormDefault="unqualified" xmlns:xs="http://www.w3.org/2001/XMLSchema"
  xmlns:edmx="http://docs.oasis-open.org/odata/ns/edmx" xmlns:edm="http://docs.oasis-open.org/odata/ns/edm" targetNamespace="http://docs.oasis-open.org/odata/ns/edmx"
>
  <xs:annotation>
    <xs:documentation xml:lang="en">
      Entity Data Model Wrapper part of the Common Schema Definition Language
    </xs:documentation>
  </xs:annotation>

  <xs:import namespace="http://docs.oasis-open.org/odata/ns/edm" schemaLocation="edm.xsd" />

  <xs:element name="Edmx" type="edmx:TEdmx" />
  <xs:complexType name="TEdmx">
    <xs:sequence>
      <xs:element name="Reference" type="edmx:TReference" minOccurs="0" maxOccurs="unbounded" />
      <xs:element name="DataServices" type="edmx:TDataServices" minOccurs="1" maxOccurs="1" />
    </xs:sequence>
    <xs:attribute name="Version" type="edmx:TVersion" use="required" />
  </xs:complexType>
  <xs:complexType name="TReference">
    <xs:sequence>
      <xs:element ref="edm:Annotation" minOccurs="0" maxOccurs="unbounded" />
      <xs:choice minOccurs="1" maxOccurs="unbounded">
        <xs:sequence>
          <xs:element name="Include" type="edmx:TInclude" />
          <xs:element ref="edm:Annotation" minOccurs="0" maxOccurs="unbounded" />
        </xs:sequence>
        <xs:sequence>
          <xs:element name="IncludeAnnotations" type="edmx:TIncludeAnnotations" />
          <xs:element ref="edm:Annotation" minOccurs="0" maxOccurs="unbounded" />
        </xs:sequence>
      </xs:choice>
    </xs:sequence>
    <xs:attribute name="Uri" type="xs:anyURI" use="required" />
  </xs:complexType>
  <xs:complexType name="TInclude">
    <xs:sequence>
      <xs:element ref="edm:Annotation" minOccurs="0" maxOccurs="unbounded" />
    </xs:sequence>
    <xs:attribute name="Namespace" type="edm:TNamespaceName" use="required" />
    <xs:attribute name="Alias" type="edm:TSimpleIdentifier" use="optional" />
  </xs:complexType>
  <xs:complexType name="TIncludeAnnotations">
    <xs:attribute name="TermNamespace" type="edm:TNamespaceName" use="required" />
    <xs:attribute name="Qualifier" type="edm:TSimpleIdentifier" use="optional" />
    <xs:attribute name="TargetNamespace" type="edm:TNamespaceName" use="optional" />
  </xs:complexType>
  <xs:complexType name="TDataServices">
    <xs:sequence>
      <xs:element ref="edm:Schema" minOccurs="1" maxOccurs="unbounded" />
    </xs:sequence>
  </xs:complexType>
  <xs:simpleType name="TVersion">
    <xs:restriction base="xs:decimal">
      <xs:enumeration value="4.0" />
      <xs:enumeration value="4.01" />
    </xs:restriction>
  </xs:simpleType>
</xs:schema>