-------------------------------------------------------------------
relocating associations:
-------------------------------------------------------------------
Associations are "first class citizens" in Rose. Part of what this
means is that they are not owned by either of the classes that they
connect. They are actually owned by the package in which they were
first created. This can cause some unexpected behaviors if you do
not realize that the package owns the association. For instance,
if the user controls all packages and moves two classes that are
related with an association into a different package, the
association will not move with them. If he later loads only the
package that contains the classes, the association will show up as
not loaded (an M with a slash through it will be attached to the
association).
Starting with Rose 98i, Rose will show associations in the
browser. This should help make it more clear that associations
are owned by a package, not a class. You can drag these
associations in the Browser from one package to another to
relocate them.
-------------------------------------------------------------------
QUESTION:
During development, we typically use "working" class categories so
that different designers can work in what will eventually be one
class category. The problem is this - when we relocate a class
from one class cat to another the relationships do not always move.
Inheritance seems to move with the classes but aggregation does
not. Is there a way to relocate the relationships without deleting
them in the old class category and then re-creating them (and their
associated code generation properties) ?
ANSWER:
Yes. Packages (formally class categories) own classes. You can move
classes from one package to another and some of the relationships
move with them, such as inheritance (AKA generalization or "has"
and "use" in Booch). On the other hand, Associations and
Aggregations are bidirectional, so they do not belong to any class.
They are owned by the package. You can copy a class from one
package to another and then do Edit:Relocate and the new package
will own the class with its relationships, except the associations
(and aggregates). Associations must also be copied and relocated,
separately.
----------------------------------------------------------------------
QUESTION:
How can I move about 100 associations from one package to another
in short way?
ANSWER:
Try the following:
- Create a new diagram in the destination package.
- menu 'Query->Add Classes' and select the related classes
- menu 'Edit->Select all'
- menu 'Query->Expand Selected elements' and select 1 level
- Select in the diagram the associations to be moved.
(Holding down the control key while selecting associations
will allow you to do multiple selects).
- menu 'Edit->Relocate'
- delete the diagram.
-------------------------------------------------------------------
'Script to relocate associations
'If both classes on either side of the association are moved to a
'new package, running this scrit will then also move the related
'assocation between these two classes, to the new location where
'these classes reside.
'BACKUP MODEL BEFORE running any script that modifiys it!!!
Sub Main
Dim allClasses As ClassCollection
Dim aClass As Class
Dim assocs As AssociationCollection
Dim assoc As Association
Dim otherClass As Class
Dim aRole As Role
Viewport.Open
Print "begin relocate"
Set allClasses = RoseApp.CurrentModel.GetAllClasses()
For i% = 1 To allClasses.Count
Set aClass = allClasses.GetAt(i%)
Set assocs = aClass.GetAssociations()
For j% = 1 To assocs.Count
Set assoc = assocs.GetAt(j%)
Set aRole = assoc.GetOtherRole(aClass)
If aRole Is Nothing Then
MsgBox "oops"
Exit Sub
End If
Set otherClass = assoc.GetOtherRole(aClass).Class
If aClass.ParentCategory Is Not otherClass.ParentCategory Then
Print "different cats: " & aClass.GetQualifiedName() & ", " &
otherClass.GetQualifiedName()
Else
aClass.ParentCategory.RelocateAssociation assoc
End If
Next j%
Next i%
Print "Done"
End Sub
-------------------------------------------------------------------
Patrick Kennedy
Rational Support
-----Original Message-----
From: "M�nnig, Olaf" [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, September 11, 2001 5:40 AM
To: '[EMAIL PROTECTED]'
Subject: (ROSE) Where to put the associations?
Hi, all!
When I have an association between two classes organized in
two different
packages, in which package should I put the association?
I cannot understand the system Rose uses to put associations
in packages. Is
anyone out there who can explain that? Should I re-organize
the
associations?
Background of the question is: when we use controlled units,
every once in a
while there is a situation that an association in a package
is to be edited,
but cannot, because its spec is in another package. Then
it's quite
disgusting that the other package must be checked-out
despite nothing shall
be changed there.
Who helps?
Thanks in advance,
Olaf M�nnig
--------------------
Diplom-Informatiker Olaf M�nnig
T-Systems
debis Systemhaus GEI GmbH
Martin-Schmei�er-Weg 18, D-44227 Dortmund
Telefon: +49 (231) 9744 664
Telefax: +49 (231) 9744 600
E-Mail: [EMAIL PROTECTED]
Internet: http://www.t-systems.de
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