• Chapter 1: Getting Started with Stylus Studio®
• Chapter 2: Editing and Querying XML
• Chapter 3: Converting Non-XML Files to XML
• Chapter 4: Working with XSLT
• Chapter 5: Creating XSLT Using the XSLT Mapper
• Chapter 6: Debugging Stylesheets
• Chapter 7: Defining XML Schemas
  • What Is an XML Schema?
  • Creating an XML Schema in Stylus Studio
  • Working with XML Schema in Stylus Studio
  • Getting Started with XML Schema in the Tree View
  • Defining simpleTypes in XML Schemas
  • Defining complexTypes in XML Schemas
  • Defining Elements and Attributes in XML Schemas
  • Defining Groups of Elements and Attributes in XML Schemas
    • Defining Groups of Elements in XML Schemas - Diagram View
    • Defining Groups of Elements in XML Schemas - Tree View
    • Defining attributeGroups in XML Schemas - Diagram View
    • Defining attributeGroups in XML Schemas - Tree View
  • Adding Comments, Annotation, and Documentation Nodes to XML Schemas
  • Defining Notations
  • Referencing External XML Schemas
  • Generating Documentation for XML Schema
  • Generating JAXB Classes
  • About XML Schema Properties
• Chapter 8: Defining Document Type Definitions
• Chapter 9: Writing XPath Expressions
• Chapter 10: Working with XQuery in Stylus Studio
• Chapter 11: Composing Web Service Calls
• Chapter 12: Accessing Relational Data as XML
• Chapter 13: Building XML Pipelines
• Chapter 14: Publishing XML Data
• Chapter 15: Integrating with Third-Party File Systems
• Chapter 16: Extending Stylus Studio
• Chapter 17: The Stylus Studio Java API
• Chapter 18: Stylus Studio GUI Reference

Home > Online Product Documentation > Table of Contents > Defining Groups of Elements and Attributes in XML Schemas

Defining Groups of Elements and Attributes in XML Schemas

The XML Schema Recommendation allows you to specify groups of elements and groups of attributes. Here is an example of an element group, purchaseType:

 <xsd:group name="purchaseType">
               
     <xsd:choice>
               
         <xsd:element name="retail"/>
               
         <xsd:element name="internet"/>
               
         <xsd:element name="mailOrder"/>
               
     </xsd:choice>
               
 </xsd:group>
               

            

Specification of a group makes it easier to update the schema. You only need to update the group definition. There is no need to change the references to the group.

Here is an example of an attributeGroup, deliveryDetail.

 <xsd:attributeGroup name="deliveryDetail">
               
     <xsd:attribute name="method"/>
               
     <xsd:attribute name="vendor"/>
               
     <xsd:attribute name="dateShipped"/>
               
     <xsd:attribute name="dateArrived"/>
               
 </xsd:attributeGroup>
               

            

This section discusses the following topics: