This idea shows up early in Clojure text books. This concept comes to mind
rather quickly:
(def and_list (ArrayList.)
...
)
But, in the end it is an ArrayList which has an interface-defined behavior,
e.g. boolean eval(); (from Java)
Thus far, in a tiny VSCode project, I defined
(definterface IEvaluable
(^boolean runIt []))
and defined a simple object which will return false and one which will
return true. I'll use those to populate a conjunctive and a disjunctive
list.
Now I must define a list object which runs that interface.
Still digging and experimenting, but, on the surface, this approach appears
to be possible.
>From above, as a sketch:
(def and_list (ArrayList.)
IEvaluable
(runIt [this]
<some code to conditionally walk the list>))
)
Meanwhile, I found this https://clojuredocs.org/clojure.core/proxy-super
which is now on the table to explore.
Many thanks
Jack
On Fri, Aug 14, 2020 at 3:41 AM Jesús Gómez <jgo...@gmail.com> wrote:
> Why not to Java-Interop with that Interface and those Classes directly,
> the same way you use them in Java?
>
> El jue., 13 ago. 2020 a las 22:54, Jack Park (<jackp...@topicquests.org>)
> escribió:
>
>> The problem:
>>
>> In Java, I have an interface *IInferrable* which is basically boolean
>> eval();
>>
>> Any Java object which extends IInferrable, no matter what it is, will
>> answer to eval() and return a boolean.
>> The idea lies at the heart of an inference engine.
>>
>> But, I also define a class *AndList* which implements IInferrable and
>> extends java.util.ArrayList<Inferrable>
>>
>> So, AndList, and its sibling OrList behave just like a List object, but
>> also will answer to eval() by running the collection and dealing with what
>> each element returns when it, too, is eval()'d.
>>
>> I'd really love to discover how to pull that off in Clojure.
>>
>> Many thanks in advance. -Jack
>>
>> --
>> 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 unsubscribe from this group and stop receiving emails from it, send an
>> email to clojure+unsubscr...@googlegroups.com.
>> To view this discussion on the web visit
>> https://groups.google.com/d/msgid/clojure/3e2ffc86-0e4f-4c0c-92c3-58e0848d5ba7o%40googlegroups.com
>> <https://groups.google.com/d/msgid/clojure/3e2ffc86-0e4f-4c0c-92c3-58e0848d5ba7o%40googlegroups.com?utm_medium=email&utm_source=footer>
>> .
>>
> --
> 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 unsubscribe from this group and stop receiving emails from it, send an
> email to clojure+unsubscr...@googlegroups.com.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/clojure/CAO9z-97N15E_17FRkDN_gbneXfkMkrS615RV5UwGMf3%2Bos%3DSLQ%40mail.gmail.com
> <https://groups.google.com/d/msgid/clojure/CAO9z-97N15E_17FRkDN_gbneXfkMkrS615RV5UwGMf3%2Bos%3DSLQ%40mail.gmail.com?utm_medium=email&utm_source=footer>
> .
>
--
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 unsubscribe from this group and stop receiving emails from it, send an email
to clojure+unsubscr...@googlegroups.com.
To view this discussion on the web visit
https://groups.google.com/d/msgid/clojure/CAH6s0fxiGQiZ4gUgEs42ScKWmxhQDtEd_N8bfgcbr2TObu7gww%40mail.gmail.com.
