Replying myself after reading the manual :)
I now first defined a subclass of sp:Functions called sumFunction. Then I defined a spin:constraint for it: Argument sp:arg1 : House Finally I defined a body for it (delete at House...): SELECT SUM(?cost) AS ?totalCost WHERE { arg1 :hasPart_transitive ?Part . ?Part :cost ?cost . OPTIONAL { ?Part :hasPart_directly ?anotherPart . } . FILTER (!bound(?anotherPart)) . } still 2 problems: 1. the box for the body stays red 2. at House: the box for the spin:rule: CONSTRUCT {?this :totalCost ?totalCost } WHERE { LET (?totalCost := sumFunction (?this)). } is still red (despite the function is now known...). Feel I am getting closer....thx for getting it to work! Michel On 17 mrt, 13:28, Michel Bohms <michel.bo...@gmail.com> wrote: > Hi Holger, > > In earlier mails we discussed the determination of totalCost (of some > 'whole') via a helper function. > > When I do as spin:rule: > > CONSTRUCT {?this :totalCost ?totalCost } WHERE { LET (?totalCost := > sumFunction (?this)). > > } > > it seems the box stays red although I defined: > > a spin:body > > SELECT SUM(?cost) AS ?totalCost > WHERE { > ?this :hasPart_transitive ?Part . > ?Part :cost ?cost . > OPTIONAL { > ?part :hasPart_directly ?anotherPart . > } . > FILTER (!bound(?anotherPart)) . > > } > > clearly I am missing the "sumFuction" definition itself but how do I > do that ? (assuming SUM is now implemented in the latest beta). > > (to refresh your memory: the idea was to calculate the cost of the > whole by counting all the leaf part's cost via querying over the all > transitive parts and then filter out the atomic leafs) > > thx a lot, Michel --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "TopBraid Composer Users" group. To post to this group, send email to topbraid-composer-users@googlegroups.com To unsubscribe from this group, send email to topbraid-composer-users+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/topbraid-composer-users?hl=en -~----------~----~----~----~------~----~------~--~---