Please note : This help page is not for the latest version of Enterprise Architect. The latest help can be found here.
Profile for XML Schema
The UML Profile for XSD specifies stereotypes that provide an explicit mapping from XSD to UML constructs. The Tagged Values further define aspects of the mapping, such as whether the elements should be qualified. The constraints define any conditions that must be satisfied for the stereotype to apply.
The UML Profile for XSD specifies the following stereotypes:
The following tables list the features of the UML Profile for XSD.
| • | Tagged Value names are shown in bold followed by the allowed values |
| • | If a default value is used by Enterprise Architect's schema generator, it is underlined |
UML Construct |
|
Package.
|
Description |
|
All Classes in a package are defined within one schema. This stereotype can be used to specify schema-wide settings.
|
Toolbox Icon |
|
|
Tagged Values |
anonymousRole
|
Specifies if the role name is included in the element declaration for the UML attribute. |
|
anonymousType
|
Specifies whether the Class type is anonymous for attributes. |
|
attributeFormDefault
|
Determines whether attribute instances must be qualified. |
|
defaultNamespace |
The default namespace used in this schema. This value is used to specify the default namespace attribute (xmlns=), in the schema element.
|
|
elementDerivation
|
Determines whether inheritances are generated using XSD extension or copy-down inheritance. |
|
elementFormDefault
|
Determines whether element instances must be qualified. |
|
memberNames
|
Determines whether elements generated from Class attributes have their name qualified by the corresponding Class name. |
|
modelGroup
|
Specifies the default XSD model group used to generate complexType definitions. |
|
schemaLocation |
The URI that identifies the location of the schema. This value is used in the import and include elements.
|
|
targetNamespace
|
The URI that uniquely identifies this schema's namespace. |
|
targetNamespacePrefix
|
The prefix that abbreviates the targetNamespace. |
|
version
|
The version of this schema. |
|
xmlns
|
The comma separated list of all the namespaces ( and their prefixes ). |
Constraints |
|
None.
|
UML Construct |
|
Class
|
Description |
|
complexType definitions are created for generic UML Classes. This stereotypes helps tailor the generation of a complexType definition.
|
Toolbox Icon |
|
|
Tagged Values |
memberNames |
Determines whether elements generated from the UML Class attributes and associations have their name qualified by the corresponding Class name for this complexType definition.
|
|
mixed |
Determines whether this element can contain mixed element and character content. See the W3CXML Schema recommendation.
|
|
modelGroup
|
Overrides the default XSD model for generating this complexType definition. |
|
minOccurs |
Specifies the minimum number of times the model group in the element can occur.
|
|
maxOccurs |
Specifies the maximum number of times the model group in the element can occur.
|
|
nillable |
Specifies whether a null value can be assigned to the top-level element generated for this complexType element.
|
Constraints |
|
None.
|
UML Construct |
|
Class
|
Description |
|
An XSD simpleType is generated for Classes with this stereotype.
|
Toolbox Icon |
|
|
Tagged Values |
derivation:
|
Specifies the derivation of the simpleType. See the W3C XML Schema recommendation. |
|
length:
|
See the W3C XML Schema recommendation. |
|
minLength:
|
|
|
maxLength:
|
|
|
minInclusive:
|
|
|
minExclusive:
|
|
|
maxInclusive:
|
|
|
maxExclusive:
|
|
|
totalDigits:
|
|
|
fractionDigits:
|
|
|
whiteSpace:
|
|
|
pattern:
|
|
Constraints |
|
This Class can only participate in an inheritance relation with another simpleType. It cannot have any attributes or own any associations; they are ignored if present.
|
UML Construct |
|
Class.
|
Description |
|
The schema generator creates a sequence model group as the container for the attributes and associations owned by this Class. The model group is in turn added to the model groups of this Class respective owners. Tagged values specified by owners of this Class persist through to the child elements of this model group. Thus if memberNames are unqualified for a complexType, so are the children of this model group when added to that complexType.
|
Toolbox Icon |
|
|
Tagged Values |
|
None.
|
Constraints |
|
This Class must be the destination of unidirectional associations. If it is not, this Class and its connectors are ignored, possibly invalidating other model group Classes. Inheritance relations are ignored for this Class.
|
UML Construct |
|
Class.
|
Description |
|
Creates an XSD choice element. See XSDsequence for more details.
|
Toolbox Icon |
|
|
Tagged Values |
|
None.
|
Constraints |
|
As for XSDsequence.
|
UML Construct |
|
UML Attribute, Association End.
|
Description |
|
By applying this stereotype to a UML Class or Association End, the corresponding UML entity is generated as an element within the parent complexType and not as an XSD attribute.
|
Toolbox Icon |
|
|
Tagged Values |
form: |
Overrides the schema's elementFormDefault value.
|
|
position: |
Causes the elements to be ordered within a sequence model group of the containing complexType. Duplicated and invalid position Tagged Values are ignored and result in undefined ordering of the UML attributes. Missing position values cause the defined positions to be allocated as specified, with the remaining elements filling the missing positions in an undefined order.
|
|
anonymousRole:
|
Specifies if the role name is included in the element declaration for the UML attribute. |
|
anonymousType:
|
Specifies whether the Class type is anonymous for attributes. |
|
nillable
|
Specifies whether a null value can be assigned to this element. |
|
default
|
|
|
fixed
|
|
Constraints |
|
None.
|
UML Construct |
|
UML Attribute, Association End.
|
Description |
|
By applying this stereotype to a UML Class attribute or Association End, the corresponding UML entity is generated as an XSD attribute within the parent complexType and not as an XSD element.
|
Toolbox Icon |
|
|
Tagged Values |
form:
|
Overrides the schema's attributeFormDefault value. |
|
use:
|
See the W3C XML Schema recommendation. |
|
default
|
|
|
fixed
|
|
Constraints |
|
The attribute datatype should not see a Class specification, otherwise it is ignored.
|
UML Construct |
|
UML Attribute.
|
Description |
|
If applied to a UML attribute, an XSD anyAttribute element is generated. If applied to a UML Class, an XSD any element is generated.
|
Toolbox Icon |
|
|
Tagged Values |
namespace:
|
See the W3C XML Schema recommendation. |
|
processContents:
|
|
Constraints |
|
None.
|
UML Construct |
|
Generalization.
|
Description |
|
Overrides the default use of XSD extension for inheritance and generates the child as a complexType with a restriction element instead.
|
Tagged Values |
|
None.
|
Constraints |
|
Applies only to UML Class parent-child relations.
|
UML Construct |
|
Class.
|
Description |
|
An XSDgroup is generated for Classes with this stereotype.
|
Toolbox Icon |
|
|
Tagged Values |
modelGroup:
|
Overrides the default XSD model for generating this group definition. |
Constraints |
|
A group Class can only associate itself to other group Classes. A group Class can be associated by another group Class or a complexType Class. The association should be via an Association connector. A group Class cannot be inherited/aggregated.
|
UML Construct |
|
Class.
|
Description |
|
Creates an <xs:element> construct which acts as a container for XSDcomplexType and XSDsimpleType Class.
|
Toolbox Icon |
|
|
Tagged Values |
default
|
|
|
fixed
|
|
Constraints |
|
An XSDtopLevelElement Class can contain either an XSDsimpleType or an XSDcomplexType as its child Class. When such a Class is present as its child, all its inheritance is ignored. This Class cannot be inherited.
|
UML Construct |
|
Class.
|
Description |
|
Creates an <xs:attributr> construct which acts as a container for XSDsimpleType Class.
|
Toolbox Icon |
|
|
Tagged Values |
use:
|
See the W3C XML Schema recommendation. |
|
default
|
|
|
fixed
|
|
Constraints |
|
An XSDtopLevelAttribute Class can contain only an XSDsimpleType Class as its child Class. When such a Class is present as its child, all its inheritance is ignored. This Class can inherit from only one XSDsimpleType Class.
|
UML Construct |
|
Class.
|
Description |
|
Creates an <xs:union> construct which can act as a container for XSDsimpleType Class.
|
Toolbox Icon |
|
|
Tagged Values |
|
None.
|
Constraints |
|
An XSDunion Class can contain only XSDsimpleType as its child Class and can generalize from other XSDsimpleType Classes only. All the Classes that this Class generalizes become the members of the attribute memberTypes. This Class cannot have any attributes or associations.
|
UML Construct |
|
Class.
|
Description |
|
Creates an <XSDattributeGroup> construct which can act as a container for a set of elements for stereotype XSDattribute.
|
Toolbox Icon |
|
|
Tagged Values |
|
None.
|
Constraints |
|
An XSDattributeGroup Class can contain only elements of stereotype XSDattribute and can be associated only with other XSDattributeGroup Classes. Only XSDcomplexType Classes can associate with this Class. This Class cannot be inherited.
|
Learn more
| • | UML Profile for XSD (Online Resource) |
| • | W3C XML Schema (Online Resource) |
