Re: small OCL query



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Jos Warmer (J.Warmer@klasse.nl)
Tue, 27 Mar 2001 21:11:40 +0200


Leonor, Bernard is completely right, Jos At 12:34 PM 27/3/01 +0200, you wrote: >Leonor Barroca wrote: > > > > Am I right in thinking that in OCL if a navigation expression X results in > > an empty set then any navigation expression of the type X.a (X followed by > > some other role name) will also result in an empty set? > >Yes, you are. > > > Also, that in OCL comparing an empty set with an object of some type will > > result in false? > >Except if you compare it with another empty set. > >Bernhard > > > >To remove yourself from this list please mail puml-list-request@cs.york.ac.uk >with a message containing the word "unsubscribe". _____________________________________________________ Klasse Objecten tel : +31 (0)35 6037646 Chalonhof 153 fax : +31 (0)35 6037647 3762 CT Soest email : J.Warmer@klasse.nl The Netherlands internet: http://www.klasse.nl


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