• 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
  • Adding Comments, Annotation, and Documentation Nodes to XML Schemas
  • Defining Notations
  • Referencing External XML Schemas
  • Generating Documentation for XML Schemas
  • 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: Extending Stylus Studio
• Chapter 14: Stylus Studio Reference

Home > Online Product Documentation > Table of Contents > Redefining Nodes

Redefining Nodes

Once you reference an XML Schema by redefining it, you are able to redefine that XML Schema's complexTypes, simpleTypes, groups, and attributeGroups. This section describes how to redefine nodes using the Diagram tab.

Extensions and Restrictions

There are two ways to redefine a node: by extension and restriction. An extension extends the base type - adding an element or an attribute definition, for example. A restriction constrains the base type - limiting a type to a certain range of values, for example.

Specifying Restriction Facets

If you define a restriction using a simpleType, the Properties window displays a section that allows you to define the facets that restrict that type, as shown in Figure 229.

Figure 229. Facets for Describing Restrictions

Restriction facets include length, minLength, maxLength, and totalDigits. For each facet you specify, you provide the facet name, a value, and, for some facets, whether or not the value is fixed. Note that not all facets apply to all types.

See About Facet Types for simpleTypes for more information on facets.

How to Redefine a Node

To redefine a node in the Diagram view:

1. Right-click the schema node .

The Redefine Schema Symbols dialog box appears.

Figure 230. Redefine Schema Symbols Dialog Box

The redefined node is added to the diagram, and the text for the redefined node appears in the text pane. For example, <xsd:complexType name="PublicationType"/>.

The Type Derivation dialog box appears.

Figure 231. Type Derivation Dialog Box

The node you added in Figure 3 is modified in the diagram to display the restriction or extension you are using to redefine it, as shown in Figure 232.

Figure 232. Redefined Node as a Restricted simpleType

The code displayed in the text pane is also modified. For example:

<xsd:complexType name="PublicationType">
               
   <xsd:simpleContent>
               
     <xsd:restriction base="SKU"/>
               
   </xsd:simpleContent>
               
</xsd:complexType>