On Tue, Jan 12, 2010 at 2:50 AM, Konrad Hinsen
<konrad.hin...@fastmail.net> wrote:
> On 11 Jan 2010, at 23:09, .Bill Smith wrote:
>
>> Every class object has a newInstance method:
>>
>> user=> (Class/forName "java.util.HashMap")
>> java.util.HashMap
>> user=> (.newInstance (Class/forName "java.util.HashMap"))
>> #<HashMap {}>
>> user=>
>>
>> Is that what you are looking for?
>
> It seems close, but it doesn't work for me. From experimenting I have the
> impression that this works only for constructors with no arguments.
>
> I found some stuff in the Java docs on reflection that could work, but this
> is getting very complicated... I'll first see if I can do without.
>Since Clojure already does this, you can borrow its implementation, found in clojure.lang.Reflector. In this case, see invokeConstructor. (clojure.lang.Reflector/invokeConstructor (class (ref "foo")) (to-array [42])) => #<r...@6ad3c65d: 42> Rich
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