<!--

    Copyright (c) 2018, 2020 Oracle and/or its affiliates. All rights reserved.

    This program and the accompanying materials are made available under the
    terms of the Eclipse Public License v. 2.0 which is available at
    http://www.eclipse.org/legal/epl-2.0,
    or the Eclipse Distribution License v. 1.0 which is available at
    http://www.eclipse.org/org/documents/edl-v10.php.

    SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause

-->

<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
   <xsd:complexType name="root">
      <xsd:sequence>
         <xsd:element minOccurs="0" name="collection">
            <xsd:complexType>
               <xsd:sequence>
                  <xsd:choice maxOccurs="unbounded">
                     <xsd:element ref="string"/>
                     <xsd:element ref="enum"/>
                  </xsd:choice>
               </xsd:sequence>
            </xsd:complexType>
         </xsd:element>
         <xsd:choice>
            <xsd:element ref="string"/>
            <xsd:element ref="enum"/>
         </xsd:choice>
      </xsd:sequence>
   </xsd:complexType>
   <xsd:element name="root" type="root"/>
   <xsd:element name="string" type="xsd:string"/>
   <xsd:element name="enum" type="myEnum"/>
   <xsd:simpleType name="myEnum">
      <xsd:restriction base="xsd:string">
         <xsd:enumeration value="FOO"/>
         <xsd:enumeration value="BAR"/>
      </xsd:restriction>
   </xsd:simpleType>
</xsd:schema>