(defrecord Person [name])
(defmulti read-tag (fn [name & args] (keyword "myns" name)))
(defmethod read-tag :myns/person
[tag name]
(Person. name))
(read-tag "person" "david")
=> #:myns.Person{:name "david"}
But I agree with everyone else, there's no need to use records unless
you're addicted to objects and classes. Just build a map {:tag-name
"person" :name "david"}, or {:tag-name "person" :attrs {:name
"david"} :contents [...some nested stuff...]}.
On Feb 3, 7:11 pm, Aaron Cohen <aa...@assonance.org> wrote:
> On Thu, Feb 3, 2011 at 10:04 PM, Quzanti <quza...@googlemail.com> wrote:
>
> >> I see no reason for the ctor to be defined as a string as you've done with
> >> "Person.".
>
> > The reason is that I am reading in XML and mapping a tag name to the
> > record class.
>
> It's possible to do this using reflection, but I don't recommend it.
>
> I think you're probably better off making a map of your tag names to
> factory functions, then just applying the factory function to your
> parameters.
>
> (def record-factories {"Person #(Person. %1 %2)})
>
> user=>(apply (record-factories "Person") ["Aaron" 31])
> #:user.Person{:name "Aaron", :age 31}
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