complexType "DataType"

Namespace:	http://www.ivoa.net/xml/VODML/v1.0
Content:	complex, 2 attributes, 7 elements
Defined:	globally in vo-dml-v1.0.xsd; see XML source
Includes:	definitions of 2 elements
Used:	at 1 location

XML Representation Summary

<...

abstract

xs:boolean : "false"

xs:string

Content:

vodml-id, name, description?, extends?, constraint*, attribute*, reference*

</...>

Content Model Elements (7):

All Direct / Indirect Based Elements (1):

Known Usage Locations

As direct type of elements (1):
dataType (type DataType)

Type Definition Detail

Type Derivation Tree

ReferableElement (extension)

Type (extension)

ValueType (extension)

DataType

XML Source (see within schema source)

<xsd:complexType name="DataType">

<xsd:complexContent>

<xsd:extension base="ValueType">

<xsd:sequence>

<xsd:element maxOccurs="unbounded" minOccurs="0" name="attribute" type="Attribute">

<xsd:annotation>

<xsd:documentation>

TODO

</xsd:documentation>

</xsd:annotation>

</xsd:element>

<xsd:element maxOccurs="unbounded" minOccurs="0" name="reference" type="Reference">

<xsd:annotation>

<xsd:documentation>

TODO

</xsd:documentation>

</xsd:annotation>

</xsd:element>

</xsd:sequence>

</xsd:extension>

</xsd:complexContent>

</xsd:complexType>

Attribute Detail (all declarations; 2)

Type:	xsd:boolean
Use:	optional
Default:	"false"
Defined:	locally within Type complexType

XML Source (see within schema source)

<xsd:attribute default="false" name="abstract" type="xsd:boolean" use="optional"/>

Type:	xsd:string
Use:	optional
Defined:	locally within ReferableElement complexType

A referencable element may be given an @id attribute to reflect an identifier defined in some source document form which a VO-DML model may have been derived.

XML Source (see within schema source)

<xsd:attribute name="id" type="xsd:string" use="optional">

<xsd:annotation>

<xsd:documentation>

A referencable element may be given an @id attribute to reflect an identifier
defined in some source document form which a VO-DML model may have been derived.

</xsd:documentation>

</xsd:annotation>

</xsd:attribute>

Content Element Detail (all declarations; 7)

Type:	Attribute, complex content
Defined:	locally within (this) DataType complexType

XML Source (see within schema source)

<xsd:element maxOccurs="unbounded" minOccurs="0" name="attribute" type="Attribute">

<xsd:annotation>

<xsd:documentation>

TODO

</xsd:documentation>

</xsd:annotation>

</xsd:element>

Type:	Constraint, complex content
Defined:	locally within Type complexType

Constraints defining valid instances of the type. May be an AttributeConstraint or an expression in some language.

XML Source (see within schema source)

<xsd:element maxOccurs="unbounded" minOccurs="0" name="constraint" type="Constraint">

<xsd:annotation>

<xsd:documentation>

Constraints defining valid instances of the type.
May be an AttributeConstraint or an expression in some language.

</xsd:documentation>

</xsd:annotation>

</xsd:element>

Type:	xsd:string, simple content
Defined:	locally within ReferableElement complexType

Human readable description of the model element.

XML Source (see within schema source)

<xsd:element minOccurs="0" name="description" type="xsd:string">

<xsd:annotation>

<xsd:documentation>

Human readable description of the model element.

</xsd:documentation>

</xsd:annotation>

</xsd:element>

Type:	ElementRef, complex content
Defined:	locally within Type complexType

Reference to a type (called the base-type) that is extended by the current type (called the subtype). This implements the typical is-a inheritance relationship, similar to the extends relations in XSD and Java, the generaliation in UML, or the subclassOf relation in RDF. Note, VO-DML does not support multiple inheritance. Instances of a subtype are automatic instances of a base type. Polymorphism is assumed: When a role (see below) defines a base type as its datatype, instances of any subtype can be uased as value of the role. Roles defined on a base type are inherited by the subtypes. Relations inherited from a basetype can be 'subsetted', which is similar to overriding their definition. See the definiton of this property on the Relation type.

XML Source (see within schema source)

<xsd:element minOccurs="0" name="extends" type="ElementRef">

<xsd:annotation>

<xsd:documentation>

Reference to a type (called the base-type) that is extended by the current type (called the subtype).
This implements the typical is-a inheritance relationship, similar to the extends relations in XSD and Java,
the
generaliation in UML, or the subclassOf relation in RDF. Note, VO-DML does not support multiple inheritance.
Instances of a subtype are automatic instances of a base type.
Polymorphism is assumed: When a role (see below) defines a base type
as its datatype, instances of any subtype
can be uased as value of the role.
Roles defined on a base type are inherited by the subtypes.
Relations inherited from a basetype can be 'subsetted', which is similar to overriding their definition.
See the definiton of this property on the Relation type.

</xsd:documentation>

</xsd:annotation>

</xsd:element>

Type:	VODMLName, simple content
Defined:	locally within ReferableElement complexType

The name of the model element. MUST NOT be an empty string.

XML Source (see within schema source)

<xsd:element minOccurs="1" name="name" type="VODMLName">

<xsd:annotation>

<xsd:documentation>

The name of the model element.
MUST NOT be an empty string.

</xsd:documentation>

</xsd:annotation>

</xsd:element>

Type:	Reference, complex content
Defined:	locally within (this) DataType complexType

XML Source (see within schema source)

<xsd:element maxOccurs="unbounded" minOccurs="0" name="reference" type="Reference">

<xsd:annotation>

<xsd:documentation>

TODO

</xsd:documentation>

</xsd:annotation>

</xsd:element>

Type:	VODMLID, simple content
Defined:	locally within ReferableElement complexType

Identifier for its containing element. Extracted as a separate type so that we can easily adapt to a different identifier design.

XML Source (see within schema source)

<xsd:element minOccurs="1" name="vodml-id" type="VODMLID">

<xsd:annotation>

<xsd:documentation>

Identifier for its containing element.
Extracted as a separate type so that we can easily adapt to a different identifier design.

</xsd:documentation>

</xsd:annotation>

</xsd:element>

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