Generating arbitrary Java classes at run time with Kawa

[Vladimir Tsichevski]

Hi Per,

thank you for the quick reply. Unfortunately, anonymous classes is not what I need. My goal is to produce a set of ~150 Java 
classes (in the form of class files or a JAR). These classes shall be annotated POJOs to form Hibernate interface to a legacy 
DB. These classes are to be used in systems which do not include Kawa runtime. So for this very task I plan to use Kawa as a 
developer tool only.

Do you think that is possible?

Regards,
Vladimir

09.11.2012 01:37, Per Bothner wrote:
> On 11/08/2012 01:24 PM, Per Bothner wrote:
>> On 11/08/2012 01:11 PM, Vladimir Tsichevski wrote:
>>> Hi all,
>>>
>>> is is possible to use Kawa to generate Java classes based on run time
>>> information (not known at compile time)?
>>>
>>> The problem is that define-simple-class is a syntax, not a function.
>>>
>>> I know, at run time I could convert my Java class metadata to a scheme
>>> file with all define-simple-class expressions, and then compile the
>>> file, but I'm looking for more elegant solution.
>>
>> You should be able to use the eval function.
>
> You might also consider using the object syntax, rather than define-simple-class,
> assuming a singleton class (single-instance) is enough:
> http://www.gnu.org/software/kawa/Anonymous-classes.html
>
> (define my-object (eval `(object (,base-class) ,@(calculated-stuff))))