• 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 complexTypes That Contain Elements and Attributes - Diagram View
    • Defining complexTypes That Contain Elements and Attributes - Tree View
    • Defining complexTypes That Mix Data and Elements
    • Defining complexTypes That Contain Only Attributes
  • Defining Elements and Attributes in XML Schemas
  • Defining Groups of Elements and Attributes in XML Schemas
  • 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 complexTypes in XML Schemas

Defining complexTypes in XML Schemas

In an XML Schema, an element that contains only data is a simpleType. Elements with any other contents are complexTypes. (Attributes are always simpleTypes.) The XML Schema Recommendation does not include any built-in complexTypes. You must define each complexType you need.

In the Diagram view, when you define a complexType as a top-level definition, it is a global declaration. You can specify that any element in the schema is of this complexType. Similarly, in the Tree view, it is a global declaration when you define a complexType as a child of the Schema node.

You can also define a complexType in the definition of an element. See Defining Elements That Contain Subelements in XML Schemas.

Stylus Studio takes care of most of the details for you. But as you define a complexType, it is helpful to keep in mind that a complexType node can have only one child node that is a model group modifier. However, this modifier node can have any number of child nodes that are modifiers. In this way, you can specify any number of modifiers in a complexType. Each modifier controls the occurrence of its child nodes. You can specify the same modifier more than once. For example, you might want to specify the sequence modifier, with some child nodes, then the choice modifier with some child nodes, and then the sequence modifier again with other child nodes.

This section discusses the following topics: