this class manages use case diagram definition
Declaration :
Directly inherited by : UmlUseCaseDiagramDefinition
Artifact : UmlBaseUseCaseDiagramDefinition
| Operation useCases | 
return the use cases present in the diagram
Declaration :
| Operation actors | 
return the actors present in the diagram
Declaration :
| Operation associations | 
return the associations between actor and use case present in the diagram
Declaration :
| Operation fragments | 
return the fragments present in the diagram
Declaration :
| Operation subjects | 
return the subjects present in the diagram
Declaration :
| Relation _use_cases (<directional composition>) | 
Declaration :
Stereotype: vector
| Relation _actors (<directional composition>) | 
Declaration :
Stereotype: vector
| Relation _rels (<directional composition>) | 
Declaration :
Stereotype: vector
| Relation _fragments (<directional composition>) | 
Declaration :
Stereotype: vector
| Relation _subjects (<directional composition>) | 
Declaration :
Stereotype: vector
| Operation read_ | 
internal, don't call it
Declaration :
| Operation ~UmlBaseUseCaseDiagramDefinition | 
  to avoid compiler warning, don't call it
Declaration :
| Extra Class Member friend | 
Definition :
friend class UmlBaseUseCaseDiagram;
All public operations : actors , associations , fragments , read_ , subjects , useCases