Elemento complexType do esquema XML
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Definição e uso
O elemento complexType define um tipo complexo. Um elemento de tipo complexo é um elemento XML que contém outros elementos e/ou atributos.
Informações do elemento
- Elementos pai: elemento, redefinir, esquema
Sintaxe
<complexType
id=ID
name=NCName
abstract=true|false
mixed=true|false
block=(#all|list of (extension|restriction))
final=(#all|list of (extension|restriction))
any attributes
>
(annotation?,(simpleContent|complexContent|((group|all|
choice|sequence)?,((attribute|attributeGroup)*,anyAttribute?))))
</complexType>
(O sinal ? declara que o elemento pode ocorrer zero ou uma vez, e o sinal * declara que o elemento pode ocorrer zero ou mais vezes dentro do elemento complexType)
Attribute | Description |
---|---|
id | Optional. Specifies a unique ID for the element |
name | Optional. Specifies a name for the element |
abstract | Optional. Specifies whether the complex type can be used in an instance document. True indicates that an element cannot use this complex type directly but must use a complex type derived from this complex type. Default is false |
mixed | Optional. Specifies whether character data is allowed to appear between the child elements of this complexType element. Default is false. If a simpleContent element is a child element, the mixed attribute is not allowed! |
block | Optional. Prevents a complex type that has a specified type
of derivation from being used in place of this complex type. This value can
contain #all or a list that is a subset of extension or restriction:
|
final | Optional. Prevents a specified type of derivation of this
complex type element. Can contain #all or a list that is a subset of
extension or restriction.
|
any attributes | Optional. Specifies any other attributes with non-schema namespace |
Exemplo 1
O exemplo a seguir tem um elemento chamado "note" que é de um tipo complexo:
<xs:element name="note">
<xs:complexType>
<xs:sequence>
<xs:element name="to" type="xs:string"/>
<xs:element name="from" type="xs:string"/>
<xs:element name="heading" type="xs:string"/>
<xs:element name="body" type="xs:string"/>
</xs:sequence>
</xs:complexType>
</xs:element>
Exemplo 2
O exemplo a seguir tem um tipo complexo, "fullpersoninfo", que deriva de outro tipo complexo, "personinfo", estendendo o tipo herdado com três elementos adicionais (endereço, cidade e país):
<xs:element name="employee" type="fullpersoninfo"/>
<xs:complexType name="personinfo">
<xs:sequence>
<xs:element name="firstname" type="xs:string"/>
<xs:element name="lastname" type="xs:string"/>
</xs:sequence>
</xs:complexType>
<xs:complexType name="fullpersoninfo">
<xs:complexContent>
<xs:extension base="personinfo">
<xs:sequence>
<xs:element name="address" type="xs:string"/>
<xs:element name="city" type="xs:string"/>
<xs:element name="country" type="xs:string"/>
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>
No exemplo acima o elemento "employee" deve conter, em sequência, os seguintes elementos: "firstname", "lastname", "address", "city" e "country".
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