- From: Andrew Welch <andrew.j.welch@gmail.com>
- Date: Thu, 17 May 2007 20:24:46 +0100
- To: "Todd Moon" <tmrfcm@gmail.com>
- Cc: xmlschema-dev@w3.org
On 5/17/07, Todd Moon <tmrfcm@gmail.com> wrote:
>
> (Forgive me if this is a duplicate, Gmail hiccuped for 5 minutes after
> I hit send. I don't see my message in the Sent folder though)
>
> I've been fleshing out my schema. I renamed "part" to "component", and
> added some unique and pattern validation. ("type" and "serial"
> together must be unique across all components.)
>
> I would appreciate some criticism of my schema's overall construction.
> Here it is:
>
> <?xml version="1.0" encoding="utf-8"?>
> <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
> <xsd:element name="header"/>
> <xsd:element name="components">
> <xsd:complexType>
> <xsd:sequence>
> <xsd:element ref="component" minOccurs="0" maxOccurs="unbounded"/>
> </xsd:sequence>
> </xsd:complexType>
> <xsd:unique name="componentTypeAndSerial">
> <xsd:selector xpath=".//component"/>
> <xsd:field xpath="@type"/>
> <xsd:field xpath="@serial"/>
> </xsd:unique>
> </xsd:element>
> <xsd:element name="component">
> <xsd:complexType>
> <xsd:sequence>
> <xsd:element ref="component" minOccurs="0" maxOccurs="unbounded"/>
> </xsd:sequence>
> <xsd:attribute ref="type"/>
> <xsd:attribute ref="serial"/>
> </xsd:complexType>
> </xsd:element>
> <xsd:attribute name="serial">
> <xsd:simpleType>
> <xsd:restriction base="xsd:string">
> <xsd:pattern value="\d{10}"/>
> </xsd:restriction>
> </xsd:simpleType>
> </xsd:attribute>
> <xsd:attribute name="type">
> <xsd:simpleType>
> <xsd:restriction base="xsd:string">
> <xsd:pattern value="\d{3}"/>
> </xsd:restriction>
> </xsd:simpleType>
> </xsd:attribute>
> <xsd:element name="adapter">
> <xsd:complexType>
> <xsd:sequence>
> <xsd:element ref="header"/>
> <xsd:element ref="components"/>
> </xsd:sequence>
> </xsd:complexType>
> </xsd:element>
> </xsd:schema>
>
> Here is an example of a valid document:
>
> <adapter>
> <header>
> </header>
> <components>
> <component type="735" serial="0000000001">
> <component type="736" serial="0000000001"/>
> <component type="736" serial="0000000002"/>
> <component type="740" serial="0000000003"/>
> </component>
> <component type="735" serial="0000000002">
> </component>
> <component type="735" serial="0000000003"/>
> </components>
> </adapter>
With global definitions some documents will be valid that you might
not want, for example an XML document of just <header/> would validate
using that schema.
Received on Thursday, 17 May 2007 19:24:52 UTC