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Subject: Re: multiple aggregates of same class
From: Michel Etienne (etienne@avignon.inra.fr)
Date: Mon Feb 23 2009 - 17:14:25 CET
A 12:19 23/02/2009 -0300, Pierre Bommel a écrit :
>Prezado Olivier,
>In Cormas, an entity belongs to only one aggregate of a given type : An
>instance of Aggregate is a spatial entity made of (connected) components
>that have been aggregated because they verify a condition. For ex, a wood
>can be an aggregate of entities (Cell or other type of spatailEntity)
>covered by the same cover (Tree). In this case, the cell of trees can
>belong to only one aggregate (Wood).
>If you want that one Cell belongs to 2 or more aggregates at the same
>time, you should have some layers of aggregates. For ex, you may have a
>"cover" and a "landowner" points of view. One given cell may belongs to
>both aggregates at the same time : a Wood (VegetationAggregate) and a
>property (TenureAggregate), as illustrated in the following picture :
>
>If you want to use an Aggregate without constraint, you shouldn't use the
>predetermine accessor (theCSE at:) but create a specific accessor.
>All the best,
> Pierre
>
>Olivier Barreteau a écrit :
j'adore quand mon ami Pierre explique quelque chose à mon ami Olivier en
anglais
c'est carrément fun Poops dirait ma fille Violaine
je trouve cela déprimant
Miguelito