Use pattern to control the extension name of image type : pattern « XML Schema « XML






Use pattern to control the extension name of image type



File: Data.xml


<?xml version="1.0"?>
<products xmlns ="http://www.java2s.com"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://www.java2s.com Schema.xsd">
      <product>
          <name>name 1</name>
          <image>a.gif</image>
          <description>description 1</description>
          <warranty>lifetime warranty</warranty>
          <cost>41.95</cost>
          <retailer>http://www.java2s.com</retailer>
      </product>
      <product>
          <name>name 2</name>
          <image>b.gif</image>
          <description>description 2</description>
          <cost>239.00</cost>
          <retailer>http://www.java2s.com</retailer>
      </product>
</products>

File: Schema.xsd
<?xml version="1.0"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
            targetNamespace="http://www.java2s.com"
            xmlns="http://www.java2s.com"
            elementFormDefault="qualified">
    <xsd:element name="products">
        <xsd:complexType>
            <xsd:sequence>
                <xsd:element name="product" minOccurs="0" maxOccurs="unbounded">
                    <xsd:complexType>
                        <xsd:sequence>
                            <xsd:element name="name" type="xsd:string"/>
                            <xsd:element name="image" type="imageType"/>
                            <xsd:element name="description" type="xsd:string"/>
                            <xsd:element name="warranty" type="xsd:string" minOccurs="0"/>
                            <xsd:element name="weight" type="xsd:positiveInteger" minOccurs="0"/>
                            <xsd:element name="cost" type="money" maxOccurs="unbounded"/>
                            <xsd:element name="retailer" type="xsd:anyURI"/>
                        </xsd:sequence>
                     </xsd:complexType>
                </xsd:element>
            </xsd:sequence>
        </xsd:complexType>
    </xsd:element>
    <xsd:simpleType name="money">
        <xsd:restriction base="xsd:decimal">
            <xsd:fractionDigits value="2"/>
        </xsd:restriction>
    </xsd:simpleType>
    <xsd:simpleType name="imageType">
        <xsd:restriction base="xsd:string">
            <xsd:pattern value="(.)+\.(gif|jpg|jpeg|bmp)"/>
        </xsd:restriction>
    </xsd:simpleType>
</xsd:schema>

 








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