Hello All, I just realized that PatternValidator checks if the String passed to it is null or not before checking it's validity, but it doesn't check if the String is empty. What if someone wants to put a regular expression constraint on a non mandatory field, and the framework he uses sets this empty field to an empty string? What do you think?

It was just a thought so that the developer doesn't have to handle such cases himself. regards Alaa Nassef On Wed, Jun 24, 2009 at 11:19 AM, Hardy Ferentschik <hibernate(a)ferentschik.de > wrote: If you want to allow the empty string you can start your regular expression with the 'empty' or operator '|', eg "|^.*foo.*$". Now the string can be empty or anything with foo in it. --Hardy On Wed, 24 Jun 2009 09:47:56 +0200, Alaa Mohsen <alaa.mohsen(a)egyptdc.com > wrote: Hello All, I just realized that PatternValidator checks if the String passed to it is null or not before checking it's validity, but it doesn't check if the String is empty. What if someone wants to put a regular expression constraint on a non mandatory field, and the framework he uses sets this empty field to an empty string? What do you think? _______________________________________________ hibernate-dev mailing list hibernate-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/hibernate-dev