[Scilab-users] Calling a java method in a Scilab function

[Samuel Gougeon]

Hello Pierre,

Le 07/12/2016 10:04, Pierre Vuillemin a écrit :
> Hi all,
>
> I have to create unique IDs for some object in Scilab. For that 
> purpose, someone kindly guided me towards the UUID class of java, 
> which lead me to create this function in Scilab,
>
> function id = make_id()
>    UUID     = jimport("java.util.UUID", %f)
>    tmp      = jinvoke(UUID,"randomUUID")
>    id       = jinvoke(tmp,"toString")
> endfunction
>
> It works fine.
>
> An a priori similar function is
>
> function id = make_id_err()
>    UUID     = jimport("java.util.UUID", %f)
>    tmp      = UUID.randomUUID()
>    id       = tmp.toString()
> endfunction
>
> where the methods are called without jinvoke. While the instructions 
> of the latter function work well in the terminal, they lead to an 
> error when trying to exec the function 'make_id_err'.
>
> I was wondering if it is a normal behaviour?
No, but the bug is fixed in Scilab 6.0:

In Scilab 5.5.2:
-->endfunction
    UUID     = jimport("java.util.UUID", %f)
                 !--error 26
Récursivité trop complexe ! (Les tables de récurrence sont pleines)
at line       2 of function make_id_err called by :
    tmp      = UUID.randomUUID()
at line       3 of function make_id_err called by :
    tmp      = UUID.randomUUID()
at line       3 of function make_id_err called by :
... etc

In Scilab 6.0:
--> getversion("scilab")
  ans  =
    6.   0.   0.   1.477D+09

--> function id = make_id_err()
   >    UUID     = jimport("java.util.UUID", %f)
   >    tmp      = UUID.randomUUID()
   >    id       = tmp.toString()
   > endfunction

--> make_id_err()
  ans  =
  49e4f3f1-736a-435f-bc26-f7061f10de27

BR
Samuel
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