XML Schema elemento redefine
XML completo Schema di riferimento Definizione e utilizzo
ridefinire elemento permette di ridefinire i tipi semplici e complessi, gruppi e gruppi di attributi ottenuti da file di schema esterni nello schema corrente.
Informazioni elemento
- elemento principale: schema
grammatica
<redefine
id=ID
schemaLocation=anyURI
any attributes
>
(annotation|(simpleType|complexType|group|attributeGroup))*
</redefine>
id=ID
schemaLocation=anyURI
any attributes
>
(annotation|(simpleType|complexType|group|attributeGroup))*
</redefine>
| 属性 | 描述 |
|---|---|
| id | 可选。规定该元素的唯一的 ID。 |
| schemaLocation | 必需。对 schema 文档位置的 URI 引用。 |
| any attributes | 可选。规定带有 non-schema 命名空间的任何其他属性。 |
esempio 1
L'esempio seguente mostra uno schema, Myschama2.xsd, in cui la presenza degli elementi specificati dal Myschama1.xsd. Tipo pname viene ridefinito. Secondo questo schema, elementi pname vincolati devono essere elemento "Paese" conclude:
Myschema1.xsd:
<?xml version="1.0"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:complexType name="pname">
<xs:sequence>
<xs:element name="firstname"/>
<xs:element name="lastname"/>
</xs:sequence>
</xs:complexType>
<xs:element name="customer" type="pname"/>
</xs:schema>
Myschema2.xsd:
<?xml version="1.0"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:redefine schemaLocation="Myschema1.xsd">
<xs:complexType name="pname">
<xs:complexContent>
<xs:extension base="pname">
<xs:sequence>
<xs:element name="country"/>
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>
</xs:redefine>
<xs:element name="author" type="pname"/>
</xs:schema>
<?xml version="1.0"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:complexType name="pname">
<xs:sequence>
<xs:element name="firstname"/>
<xs:element name="lastname"/>
</xs:sequence>
</xs:complexType>
<xs:element name="customer" type="pname"/>
</xs:schema>
Myschema2.xsd:
<?xml version="1.0"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:redefine schemaLocation="Myschema1.xsd">
<xs:complexType name="pname">
<xs:complexContent>
<xs:extension base="pname">
<xs:sequence>
<xs:element name="country"/>
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>
</xs:redefine>
<xs:element name="author" type="pname"/>
</xs:schema>
XML completo Schema di riferimento