You can just define a variable with def in the file containing gen-class.
gen-class won't help with this; it's just regular Clojure functionality:
(def CLASSNAME "MyClass")
That variable will be specific to the generated class, and public at least
in the sense that it can be accessed in Clojure from outside the
namespace. However, I'm not certain whether a Java class will be willing
to access it by MyClass.CLASSNAME, if that's what you need. You can try it
and see whether it works. I've used gen-class a but, I've never had to
define a static field for use by Java classes.
You can certainly define static methods, so if it would work to simply let
Java get the value of CLASSNAME using an accessor method, you can do that
using :methods in gen-class. I haven't done this, but the gen-class
docstring gives a tip about how to do it. you'll then have to define a
function to implement the accessor outside of gen-class, named e.g.
"-getCLASSNAME" for an accessor that Java will see as "getCLASSNAME". (You
probably know that already.)
On Sunday, April 16, 2017 at 1:43:17 AM UTC-5, lambda-knight wrote:
>
> Hi,
>
> I am re-writing a Java class in Clojure using gen-class which is
> accessible from Java.
> The class has a static field. Let's assume a Java class as follow:
>
> public class MyClass {
> public static final String CLASSNAME = "MyClass";
> private String name;
> private int value;
>
> public MyClass() {}
>
> public String getName() {
> return this.name;
> }
> public void setName(final String name) {
> this.name = name;
> }
> public int getValue() {
> return this.value;
> }
> public void setValue(final int value) {
> this.value = value;
> }
> }
>
> Can I define a such field in Clojure ?
>
> Thanks,
>
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