PI45249: IF SUPERCLASS HAS SELF ASSOCIATION, CANNOT CREATE LINK BETWEEN SUBCLASSES

Rational Software Architect Designer 9.5.0
Rational Software Architect RealTime Edition 9.5.0
Rational Software Architect Designer for WebSphere Software Fix Pack 1 (9.5.0.1) for 9.5.0
Rational Software Architect Designer for WebSphere Software 9.5.0
Rational Software Architect Designer Fix Pack 2 (9.5.0.2) for 9.5.0
Rational Software Architect Designer for WebSphere Software Fix Pack 2 (9.5.0.2) for 9.5.0
Rational Software Architect Designer for WebSphere Software Fix Pack 3 (9.5.0.3) for 9.5.0
Rational Software Architect Designer Fix Pack 3 (9.5.0.3) for 9.5.0

APAR status

• Closed as program error.

Error description

• In IBM Rational Software Architect (RSA), if two classes have
  the same parent type and this parent type has an association to
  another class as well as an association to itself, it will not
  be possible to create a link between their class instances on an
  object diagram.
  
  Steps to reproduce:
  
  1. Create a UML project and model
  
  2. Add four classes, A, B, C, D, onto a class diagram
  
  3. Draw an association from B to A
  
  4. Draw an association from A to itself
  
  5. Draw a generalization from C to A and D to A
  
  6. Add an object diagram
  
  7. Add class instances for B, C, and D onto the object diagram
  
  8. Draw a link from the C class instance to B class instance
  
  RESULT: The link is drawn, as expected
  
  9. Draw a link from the C class instance to D class instance
  
  Expected Result: The link is drawn between the two class
  instances.
  
  Actual Result: No link is drawn between the C and D class
  instances.  If you attempt to "Search" or "Browse", the list
  from which to select is empty.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * -                                                            *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * If a superclass has a self-association, then in an object    *
  * diagram, link can not be created between two of its          *
  * sub-class instances                                          *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  

Problem conclusion

• The issue is that self associations of base class are not
  considered as valid associations when a link between sub class
  instances is attempted. This has been fixed.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  RATL SW ARCHITE

• Fixed component ID

  5725A3000

Applicable component levels

• R911 PSY

     UP

• R912 PSY

     UP