<?xml version="1.0" encoding="UTF-8"?>
<!--
/**
* This schema must be used to validate resources.xml files
*
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:element name="config">
<xs:complexType>
<xs:sequence>
<xs:element name="resource" type="resourceDeclaration" minOccurs="1" maxOccurs="unbounded" />
</xs:sequence>
</xs:complexType>
<xs:unique name="uniqueResourceName">
<xs:annotation>
<xs:documentation>Resource name must be unique.</xs:documentation>
</xs:annotation>
<xs:selector xpath="resource" />
<xs:field xpath="@name" />
</xs:unique>
</xs:element>
<xs:complexType name="resourceDeclaration">
<xs:annotation>
<xs:documentation>
Resource declaration.
</xs:documentation>
</xs:annotation>
<xs:attribute name="name" type="nameIdentifier" use="required" />
<xs:attribute name="extends" type="nameIdentifier" use="optional" />
<xs:attribute name="connection" type="nameIdentifier" use="optional" />
</xs:complexType>
<xs:simpleType name="nameIdentifier">
<xs:annotation>
<xs:documentation>
Name identifier can contain only [A-Za-z_0-9].
</xs:documentation>
</xs:annotation>
<xs:restriction base="xs:string">
<xs:pattern value="[A-Za-z_0-9]+" />
</xs:restriction>
</xs:simpleType>
</xs:schema>
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