/[volute]/trunk/projects/theory/snapdm/doc/Simulation Database Data Model-issues.txt
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revision 304 by bourges.laurent, Thu Apr 17 17:19:33 2008 UTC revision 305 by gerard.lemson, Mon Apr 28 16:16:36 2008 UTC
# Line 21  Line 21 
21      => laurent proposes to have a simple Value (string for complex...) or DoubleValue      => laurent proposes to have a simple Value (string for complex...) or DoubleValue
22                  and move the unit to InputParameter & Property Classes and/or use a reference to a new SnapUnit enumeration (id, name, description)                  and move the unit to InputParameter & Property Classes and/or use a reference to a new SnapUnit enumeration (id, name, description)
23    
24    - Issues form Skyp conv with Laurent:
25      . how do we identify SimDB resources and their constituents.
26        issues: we need to be able to use these to refer to them, inside a single SimDB, inside a single SimDB-XML,
27        across different XML docs, across SimDB instances. Or do we?
28        Really: need to write up the issues related to mapping references.
29      . need to know how to deal with values, quantities, units. should we add unit to property and parameter, possibly
30      overrridden on experiment? then can ignore unit on quantity, though we still want a numeric type to be able to
31      support numeric things.
32      . can we insist that all type names arwe unique within a model? if we are allowed to ignore full paths where this would be
33      a hinderance, this simplifies generation a lot
34      especially : JPA/discriminator column, table names, foreign key names etc etc  
35      . do we need to update the set of primitive types for logical models? long/integer/short iso only integer?
36      

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