Using the XML Schema Infoset Model APIs and adding on to the schema created in Exercise 3: Create a list simple type, create a global complex type called "PurchaseOrderType" with a sequence model group.

<?xml version="1.0"?>
<schema
  targetNamespace="http://www.eclipse.org/xsd/examples/po"
  xmlns="http://www.w3.org/2001/XMLSchema"
  xmlns:po="http://www.eclipse.org/xsd/examples/po">
 
  <simpleType name="USState">
    <restriction base="string">
      <enumeration value="AK"/>
      <enumeration value="AL"/>
      <enumeration value="AR"/>
    </restriction>
  </simpleType>
   
  <simpleType>
    <list itemType="po:USState"/>
  </simpleType>
   
  <complexType name="PurchaseOrderType">
    <sequence/>
  </complexType>
   
</schema>
                                

New constructs created in this exercise:

• <complexType> - Global complex type with name="PurchaseOrderType"
• <sequence> - Model group with compositor set to "sequence"