Casper,

Something like 
http://cwiki.apache.org/WICKET/how-to-do-things-in-wicket.html this ?

Regards - Cemal
http://www.jWeekend.co.uk http://jWeekend.co.uk 



Casper Bang wrote:
> 
> In "Wicket in Action" it's mentioned briefly how one could use a
> SimpleAttributeModifier to limit the text length of an input, by binding
> to a JPA @Column annotation and its length attribute. This sounds nice DRY
> to me (albeit perhaps a bit expensive?!) so I gave it a try:
> 
>     protected String getColumnLength(Class entityName, String fieldName){
>         try {
>             Field field = entityName.getDeclaredField(fieldName);
>             field.setAccessible(true);
>             return
> String.valueOf(field.getAnnotation(Column.class).length());
>         } catch (Exception ex) {
>             return "";
>         }
>     }
> 
> Which got me thinking (after spending an hour figuring out I had to use
> setAccessible) if there's an open FAQ/wiki for these kind of things? I
> have not been able to find any except the locked down official confluence.
> Google is nice, but as a newbie it would be nice to have a central place
> with lots of micro-examples/snippets to get you going.
> 
> /Casper 
> 

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