Developing a DSL Graphical Notation - Eclipse Modeling Project: A Domain-Specific Language Toolkit - page 98

Table 4-9 Mindmap Audit Definition

Element Property Value

Mapping

Audit Container Description A set of mindmap model audits.

Id mindmap.audits

Name Mindmap Audits

Audit Rule Description Topics should not have subtopic

relationships that form a cycle.

Id cycle

Message A cycle was detected in the subtopics

of this Topic.

Name Subtopic Cycle

Severity WARNING

Use In Live Mode false

Constraint Body not self->closure(subtopics)-

>includes(self)

Language ocl

Domain Element Target Element Topic -> MapElement

Audit Rule Description All Topic elements require a valid name.

Id name

Message Topic has no name.

Name Topic Name

Severity ERROR

Use In Live Mode true

Constraint Body not self.name.oclIsUndefined() and

self.name <> ''

Language ocl

Domain Element Target Element Topic -> MapElement

We've defined two audits using OCL. The first detects cycles in Topic
subtopic relationships using MDT OCL's closure() iterator. If the topic is
within the set of all subtopics, a cycle is formed. The Severity of this audit is
set to WARNING and it is not used in Live Mode , meaning that the Practitioner