Table 6.107—DRM_Function

Property

Description

Superclass

·         <DRM Expression>

Class

·         <DRM Function>

Subclass

·         <DRM Predefined Function>

·         <DRM Pseudo Code Function>

Definition

An instance of one of the concrete subclasses of this abstract DRM class  specifies an expression for which the value is determined by evaluating  the arguments of the ordered <DRM Expression> components  of the <DRM Function> and passing them through the specified function.

Example(s)

·         See <DRM Predefined Function> or <DRM Pseudo Code Function>.

Inherited field elements

field_name

range

Field_Data_Type

none

 

 

Field elements

field_name

range

Field_Data_Type

value_type1

 

Property_Data_Value_Type

Associated to (one-way) (inherited)

·         none

Associated to (one-way)

·         none

Associated by (one-way) (inherited)

·         none

Associated by (one-way)

·         none

Associated with (two-way) (inherited)

·         none

Associated with (two-way)

·         none

Composed of (two-way) (inherited)

·         none

Composed of (two-way)

·         zero or more {ordered} <DRM Expression> instances2

Composed of (two-way metadata) (inherited)

·         none

Composed of (two-way metadata)

·         none

Component of (two-way) (inherited)

·         zero or more <DRM Control Link>s

·         zero or more <DRM Feature Model Instance>s through <DRM Model Instance Template Index>s

·         zero or more <DRM Function>s

·         zero or more <DRM Geometry Model Instance>s through <DRM Model Instance Template Index>s

Component of (two-way)

·         none

Constraints

·         Non-cyclic aggregations

Notes

1 The value_type of a <DRM Function> is the 'return type' of that <DRM Function>; that is, the value type of the value produced when the <DRM Function> is evaluated for its arguments.

2 The <DRM Expression> components of a <DRM Function>, if any, represent the arguments of the function being represented, so a <DRM Function> has <DRM Expression> components if that <DRM Function> takes arguments. The <DRM Expression> components are ordered so as to unambiguously specify which <DRM Expression> is being supplied for each argument of the given <DRM Function>. The exact interpretation of each argument is defined by the specific function.

Class diagram

<DRM Function>