Another Gotcha....
if you have a
| @Length(min = 12, max = 30, message = "sim must between 12 and 30
characters long")
|
on a Database Object that is NOT mandatory (like a post code) that is mapped to
a view component of type string.
If you leave the string empty in the view you get a "" back as apposed to a
null (which seems helpful as it reduces a lot of null pointer exceptions).
However, I had to write code to convert the "" back to null just before
persisting it to stop the validator failing...
| // Need to set "" to null for validator to allow a blank field
through.
| subscriber.setCreationDate(new Date());
| if (subscriber.getXxx().equals("")) {
| ZZZZZZZ.setXxx(null);
| }
| if (subscriber.getYyy().equals("")) {
| ZZZZZZZ.setYyy(null);
| }
| em.persist(ZZZZZZ);
|
I could have extended the validator, but this seemed wrong as a string of ""
should fail !!!
The better solution was to pass null to the validator.
humm...
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