XML(11) XML schema example

example from w3schools.com

shiporder.xml

<?xml version="1.0" encoding="ISO-8859-1"?>

<shiporder orderid="889923"
xmlns="http://www.mysite.org/shiporder"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.mysite.org/shiporder
C:\Users\Xing%20Hua%20Zhang\Documents\NetBeansProjects\JavaApplication1\src\shiporder.xsd">
<orderperson>John Smith</orderperson>
<shipto>
<name>Ola Nordmann</name>
<address>Langgt 23</address>
<city>4000 Stavanger</city>
<country>Norway</country>
</shipto>
<item>
<title>Empire Burlesque</title>
<note>Special Edition</note>
<quantity>1</quantity>
<price>10.90</price>
</item>
<item>
<title>Hide your heart</title>
<quantity>1</quantity>
<price>9.90</price>
</item>
</shiporder>

shiporder.xsd:

<?xml version="1.0" encoding="utf-8"?>
<xs:schema xmlns="http://www.mysite.org/shiporder"
targetNamespace="http://www.mysite.org/shiporder"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
elementFormDefault="qualified">

<xs:complexType name="shiptotype">
<xs:sequence>
<xs:element name="name" type="xs:string" />
<xs:element name="address" type="xs:string" />
<xs:element name="city" type="xs:string" />
<xs:element name="country" type="xs:string" />
</xs:sequence>
</xs:complexType>

<xs:complexType name="itemtype">
<xs:sequence>
<xs:element name="title" type="xs:string" />
<xs:element name="note" type="xs:string" minOccurs="0"  />
<xs:element name="quantity" type="xs:integer" />
<xs:element name="price" type="xs:decimal" />
</xs:sequence>
</xs:complexType>

<xs:complexType name="shipordertype">
<xs:sequence>
<xs:element name="orderperson" type="xs:string"  />
<xs:element name="shipto" type="shiptotype"  />
<xs:element name="item" type="itemtype"  maxOccurs="unbounded" />
</xs:sequence>
<xs:attribute name="orderid" type="xs:string" use="required" />
</xs:complexType>

<xs:element name="shiporder" type="shipordertype" />
</xs:schema>

noNamespaceSchemaLocation example:

File: Schema.xsd

<?xml version = "1.0" encoding = "UTF-8"?>
<xs:schema xmlns:xs = "http://www.w3.org/2001/XMLSchema">
<xs:element name = "Name">
<xs:complexType>
<xs:sequence>
<xs:element name = "firstName" type = "xs:string" />
<xs:element name = "middleInitial" type = "xs:string" />
<xs:element name = "lastName" type = "xs:string" />
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema>

File: Data.xml

<?xml version = "1.0" encoding = "UTF-8"?>
<Name xmlns:xsi=" http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="name.xsd">
<firstName>John</firstName>
<middleInitial>J</middleInitial>
<lastName>Johnson</lastName>
</Name>

Note: Eclipse provides code completion for writing XML/Schema, Netbeans provides validation.