1<?xml version="1.0"?> 2<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" targetNamespace="http://xsdtesting" xmlns:x="http://xsdtesting" elementFormDefault="qualified"> 3 <xsd:complexType name="base"> 4 <xsd:choice> 5 <xsd:element name="e1" minOccurs="0" maxOccurs="unbounded"/> 6 <xsd:element name="e2" minOccurs="0" maxOccurs="unbounded"/> 7 </xsd:choice> 8 </xsd:complexType> 9 <xsd:complexType name="testing"> 10 <xsd:complexContent> 11 <xsd:restriction base="x:base"> 12 <xsd:choice> 13 <xsd:element name="e1" minOccurs="1" maxOccurs="9999999"/> 14 <xsd:element name="e2" minOccurs="1" maxOccurs="9999999"/> 15 </xsd:choice> 16 </xsd:restriction> 17 </xsd:complexContent> 18 </xsd:complexType> 19 <xsd:element name="doc" type="x:testing"/> 20</xsd:schema> 21