23.2. An Example of a Simple Type Mapping to a Database Schema

Listing 23.1 shows the simple type partNameType, first seen in Listing 10.1.

Listing 23.1. A Simple Type Derived from a Token (catalog.xsd)
<xsd:simpleType name="partNameType" 
                final="list,union" 
                id="catalog.partName.sType"> 
    <xsd:annotation> 
        <xsd:documentation xml:lang="en"> 
            A part name can be almost anything. 
            The name is a short description. 
        </xsd:documentation> 
    </xsd:annotation> 
    <xsd:restriction base="xsd:token" 
                     id="pnt-rst"> 
        <xsd:minLength value="1"/> 
        <xsd:maxLength value="40"/> 
    </xsd:restriction> 
</xsd:simpleType>

Mapping this to a database schema involves creating a database column of type token, entering a description of the column, and enforcing the minLength and maxLength ...

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