Re: Pattern matching for map content
Thx, this is exactly what I need. -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Pattern matching for map content
On Tue, Oct 25, 2011 at 15:33, Alex Ott wrote: > it's better to use https://github.com/clojure/core.match Thanks, I'd forgotten about core.match. // ben > On Tue, Oct 25, 2011 at 11:32 AM, Ben Smith-Mannschott > wrote: >> On Tue, Oct 25, 2011 at 11:20, Michael Jaaka >> wrote: >>> Hi! >>> Pattern matching is fine for sequence or vector destruction. >>> Is is possible to destruct map and make pattern machting? >>> For example I would like to make constraint for to some query service. >>> It would be done as map for example: { :name "Tom" :surname "Jakarta" >>> :birthDate (Date.) } or { :personalId "12312312132" } >>> Then I would like to dispatch this Value Object: >>> (defn service >>> ([ {:keys [name surname]} ] (println "searching by personal data")) >>> ([{:keys [personalId]} ] (println "searching by id"))) >>> >>> Why using map instead of specific type of VO? >>> Because I don't want to decleare types of VO which doesn't bring any value >>> to domain problem. >>> Maybe matchure or other lib already implements it? >> >> Clojure provides only destructuring, not pattern matching. (It's my >> impression that Rich is not a fan of mixing destructuring with control >> flow implied by pattern matching.) >> >> If you want pattern matching, matchure seems like just what you need. >> For your particular example, take a look at matchure's defn-match. >> >> https://github.com/dcolthorp/matchure >> >> // Ben >> >> -- >> You received this message because you are subscribed to the Google >> Groups "Clojure" group. >> To post to this group, send email to clojure@googlegroups.com >> Note that posts from new members are moderated - please be patient with your >> first post. >> To unsubscribe from this group, send email to >> clojure+unsubscr...@googlegroups.com >> For more options, visit this group at >> http://groups.google.com/group/clojure?hl=en > > > > -- > With best wishes, Alex Ott > http://alexott.net/ > Tiwtter: alexott_en (English), alexott (Russian) > Skype: alex.ott > > -- > You received this message because you are subscribed to the Google > Groups "Clojure" group. > To post to this group, send email to clojure@googlegroups.com > Note that posts from new members are moderated - please be patient with your > first post. > To unsubscribe from this group, send email to > clojure+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Pattern matching for map content
it's better to use https://github.com/clojure/core.match On Tue, Oct 25, 2011 at 11:32 AM, Ben Smith-Mannschott wrote: > On Tue, Oct 25, 2011 at 11:20, Michael Jaaka > wrote: >> Hi! >> Pattern matching is fine for sequence or vector destruction. >> Is is possible to destruct map and make pattern machting? >> For example I would like to make constraint for to some query service. >> It would be done as map for example: { :name "Tom" :surname "Jakarta" >> :birthDate (Date.) } or { :personalId "12312312132" } >> Then I would like to dispatch this Value Object: >> (defn service >> ([ {:keys [name surname]} ] (println "searching by personal data")) >> ([{:keys [personalId]} ] (println "searching by id"))) >> >> Why using map instead of specific type of VO? >> Because I don't want to decleare types of VO which doesn't bring any value >> to domain problem. >> Maybe matchure or other lib already implements it? > > Clojure provides only destructuring, not pattern matching. (It's my > impression that Rich is not a fan of mixing destructuring with control > flow implied by pattern matching.) > > If you want pattern matching, matchure seems like just what you need. > For your particular example, take a look at matchure's defn-match. > > https://github.com/dcolthorp/matchure > > // Ben > > -- > You received this message because you are subscribed to the Google > Groups "Clojure" group. > To post to this group, send email to clojure@googlegroups.com > Note that posts from new members are moderated - please be patient with your > first post. > To unsubscribe from this group, send email to > clojure+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/clojure?hl=en -- With best wishes, Alex Ott http://alexott.net/ Tiwtter: alexott_en (English), alexott (Russian) Skype: alex.ott -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Pattern matching for map content
On Tue, Oct 25, 2011 at 11:20, Michael Jaaka wrote: > Hi! > Pattern matching is fine for sequence or vector destruction. > Is is possible to destruct map and make pattern machting? > For example I would like to make constraint for to some query service. > It would be done as map for example: { :name "Tom" :surname "Jakarta" > :birthDate (Date.) } or { :personalId "12312312132" } > Then I would like to dispatch this Value Object: > (defn service > ([ {:keys [name surname]} ] (println "searching by personal data")) > ([{:keys [personalId]} ] (println "searching by id"))) > > Why using map instead of specific type of VO? > Because I don't want to decleare types of VO which doesn't bring any value > to domain problem. > Maybe matchure or other lib already implements it? Clojure provides only destructuring, not pattern matching. (It's my impression that Rich is not a fan of mixing destructuring with control flow implied by pattern matching.) If you want pattern matching, matchure seems like just what you need. For your particular example, take a look at matchure's defn-match. https://github.com/dcolthorp/matchure // Ben -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Pattern matching for map content
Hi! Pattern matching is fine for sequence or vector destruction. Is is possible to destruct map and make pattern machting? For example I would like to make constraint for to some query service. It would be done as map for example: { :name "Tom" :surname "Jakarta" :birthDate (Date.) } or { :personalId "12312312132" } Then I would like to dispatch this Value Object: (defn service ([ {:keys [name surname]} ] (println "searching by personal data")) ([{:keys [personalId]} ] (println "searching by id"))) Why using map instead of specific type of VO? Because I don't want to decleare types of VO which doesn't bring any value to domain problem. Maybe matchure or other lib already implements it? -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en