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[tigerstripe-dev] RE: Some questions.

Hi Richard,


See my comments inline.




From: Richard Craddock (rcraddoc)
Sent: Tuesday, February 19, 2008 8:34 AM
To: Eric Dillon (erdillon)
Cc: Jim Strawn (jistrawn); Duncan Keysell (dkeysell)
Subject: Some questions.


I raised bugs where I could. Heres a variety of thoughts/questions

[ER>] I’ve addressed 219420, 219444, 219450, 219454, 217823, 217825. This will be in tonight’s nightly build.


1. What is the option "Cascade Delete References" for in the Preferences/General tab for ? I've never noticed it before......


[ER>] I initially couldn’t remember what this could be, but I remember talking with Chris about this case: when deleting an artifact from the model that has incoming or outgoing associations, these associations/relations are currently left “dangling”. This option mean that all relationships would be removed as well. I am unclear as what is really implemented, so I would be in favor of removing this option from the GUI until we can vouch for what it really means L.


2. I think we need to review the OSS/J settings in the "factory default" profile - the OSS/J specifics appear unless you turn them off - should be the reverse ?

[ER>] Agreed. The OSSJ settings should all be turned off by default.


3. On Method we have a method called getMethodReturnName() - is might be simpler to just have getReturnName()

[ER>] Please make the change.


4. I seem to remember that *somewhere* in the code you can query an AbstractArtifact to see if it supports Methods, Constants etc. This might be quite handy to add to the API. And add a similar thing to say if it has Ends.

[ER>] As discussed briefly on the phone today, I think it makes sense to provide a way to “introspect” the artifacts. This will be needed/available from the EMF implementation later on. I was hoping to get around to doing it today… not sure anymore. I’ll send you an email if I do finish this tonight.


5. Isn't the refBy stuff really an OSS/J specific ?

[ER>] Hmmm…. This needs to be thought thru. It should indeed be considered as an OSSJ extension in the metamodel, but it is currently embedded quite deeply in the core, so we have look at the consequences…


6. On an associationEnd - there is no current method to say if it is the AEnd or ZEnd of a relationship - I'm not sure exactly what this truly means in context as the navigability are the truly useful things, but we have had to do some (admittedly simple) checking whenever we want to get the "otherEnd". Maybe a couple of methods could be added isAEnd() isZEnd() ?

[ER>] I believe there is a getOtherEnd() method on the implementation of IAssociationEnd. It should simply be a matter of pushing this into the IAssociationEnd Interface and it should do the trick?


7. (Warning - Modelling question!) Still on the associationEnd - we have Multiplicity, but we also have a type which has multiplicity - the TypeMultiplicity is always 0..1 - should that be 1, or is it really irrelevant?

[ER>] Yes. This is a bit redundant. IAssociationEnd exposes a multiplicity, and the IType on that end does too. For consistency we should probably use the IType one only. Also, we need to look into migrating the current Enumeration-based multiplicity to support arbitrary bounds (upperBound, lowerBound).


8. (This is very minor) when I add an attribute to an artifact it generates the names attriubute0, attribute1, attriubute2 . If I then switch artifact, it starts at attriubute2 ....

[ER>] Yes, a little annoyance indeed, maybe there is a “static” somewhere we should remove J.




Still going....




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