attributedef

The <attributedef> element specifies the attribute to which a set of controlled values from a subject scheme map are to be applied.

Contains

note

These models represent only the default document types distributed by OASIS. Actual content models will differ with each new document type.

Doctype	Content model
subjectScheme	( (data or data-about) (any number) )

Contained by

Doctype	Content model
subjectScheme	enumerationdef

Inheritance

- topic/data subjectScheme/attributedef

Example

In this example, enumerations are specified for the platform and otherprops attributes. Note that the enumeration identifies a category of values; the values within the category are valid, while the category itself is not a valid value. For example, in the code sample here, the platform attribute is associated with the enumeration for the category "os"; all values within the "os" category are thus valid on the platform attribute, while the value "os" itself is not.

<subjectScheme>
  <!-- Pull in a scheme that defines unix OS values -->
  <schemeref href="unixOS.ditamap"/>
  <!-- Define new OS values that are merged with those in the unixOS scheme -->
  <subjectdef keys="os">
    <subjectdef keys="linux"/>
    <subjectdef keys="mswin"/>
    <subjectdef keys="zos"/>
  </subjectdef>
  <!-- Define application values -->
  <subjectdef keys="app" navtitle="Applications">
    <subjectdef keys="apacheserv" href="subject/apache.dita"/>
    <subjectdef keys="mysql"      href="subject/sql.dita"/>
  </subjectdef>

  <!-- Define an enumeration of the platform attribute, equal to
       each value in the OS subject. This makes the following values
       valid for the platform attribute: linux, mswin, zos -->
  <enumerationdef>
    <attributedef name="platform"/>
    <subjectdef keyref="os"/>
  </enumerationdef>
  <!-- Define an enumeration of the otherprops attribute, equal to
       each value in the application subjects.
       This makes the following values valid for the otherprops attribute:
       apacheserv, mysql -->
  <enumerationdef>
    <attributedef name="otherprops"/>
    <subjectdef keyref="app"/>
  </enumerationdef>
</subjectScheme>

Attributes

Name	Description	Data Type	Default Value	Required?
name	Defines an attribute that will take a set of enumerated values.	CDATA	#REQUIRED	Yes
id-atts attribute group (id, conref, conrefend, conaction, conkeyref)	A set of related attributes, described in id-atts attribute group
status	The modification status of the current element.	new \| changed \| deleted \| unchanged \| -dita-use-conref-target	#IMPLIED	No
translate	Indicates whether the content of the element should be translated or not. The DITA architectural specification contains a list of each OASIS DITA element and its common processing default for the translate value.	yes \| no \| -dita-use-conref-target	#IMPLIED	No
base	A generic attribute that has no specific purpose. It is intended to act as a base for specialized attributes that have a simple value syntax like the conditional processing attributes (one or more alphanumeric values separated by whitespace), but is not itself a filtering or flagging attribute. The attribute takes a space-delimited set of values. However, when acting as a container for generalized attributes, the content model will be more complex; see Attribute generalization for more details.	CDATA	#IMPLIED	No
global-atts attribute group (xtrf, xtrc)	A set of related attributes, described in global-atts attribute group
class, outputclass	Common attributes described in Other common DITA attributes