Btw, slightly OT: it is always a good idea to explicitly set the column size. There are a few arguments for it: Why waste space for e.g. an internal shortcut which is defined to be 20 chars wide in the gui? By default a database page is still only 8kB (or even 4kB sometimes) in most database setups. In the Java/UTF world this means 4000 resp 2000 chars in 1 page! If you have large objects, then you'll quickly exceed this size, thus slowing down your database. Another bummer: In most databases, a combined unique index (by default) must not exceed 1kB (500chars). Thus you cannot even combine 2 columns of that kind to an unique index ;) LieGrue, strub ----- Original Message ----- > From: Ing.Thomas Kernstock > To: 'MyFaces Discussion' ; 'Mark Struberg' > Cc: > Sent: Friday, September 9, 2011 11:22 AM > Subject: AW: Bean Validation > > hi mark, > > thanx for the clarification ! > > best regards > Thomas > > -----Ursprüngliche Nachricht----- > Von: Mark Struberg [mailto:struberg@yahoo.de] > Gesendet: Freitag, 09. September 2011 10:42 > An: MyFaces Discussion > Betreff: Re: Bean Validation > > Yup, Gerhard is right. > > The reason is that JPA defines String fields as VARCHAR(255) by default. > Strings of larger size will be stored in CLOBs which have completely > different indexing, etc. > > LieGrue, > strub > > > > ----- Original Message ----- >> From: Gerhard Petracek >> To: MyFaces Discussion >> Cc: >> Sent: Thursday, September 8, 2011 9:34 PM >> Subject: Re: Bean Validation >> >> hi thomas, >> >> length of @Column should help. e.g. @Column(length = 512) >> >> regards, >> gerhard >> >> http://www.irian.at >> >> Your JSF powerhouse - >> JSF Consulting, Development and >> Courses in English and German >> >> Professional Support for Apache MyFaces >> >> >> >> 2011/9/8 Ing.Thomas Kernstock >> >>>   Hi Group ! >>> >>>   I have a weird problem with bean validation in JSF and hope someone >>> can  help  me. >>> >>>   I have a JEE6 project using JPA2, JSF2, MyFaces CODI 1.0 and MyFaces >>> Extval >>>   2.0.5 (bean, core and property module). >>> >>>   I have an entity with a field -> >>> >>> >>>   @Entity >>>   @Table(name="bewerbungen") >>>   public class Bewerbung extends BaseEntityVersioned implements >>> Serializable  {  ..... >>>         @Lob >>>         @Column(name="Bemerkung") >>>         private String bemerkung; >>>   ..... >>>   } >>> >>>   a Form with h:inputTextarea that writes directly to the entity -> >>> >>>   > value="#{msgs.bewerben_bemerkungen}" /> >>>   >>   value="#{applyForJobPage.bewerbung.bemerkung}" >> rows="12" cols="75" >>>   label="#{msgs.bewerben_bemerkungen}"  /> >>> >>>   and a view bean-> >>> >>>   @Named >>>   @ViewAccessScoped >>>   public class ApplyForJobPage extends AbstractProfilePage{ >>> >>>         private Bewerbung bewerbung; >>> >>>   ... getter and setter ... >>>   } >>> >>> >>>   There are no validations defined but when I copy a text longer than >>> 255  character into the text field I get a validation Error ! (=> >> Anschreiben: >>>   Überprüfungsfehler: Wert ist größer als der zulässige Maximalwert >> "255") >>> >>>   I also tried to change the code to: >>> >>>   >>   value="#{applyForJobPage.bewerbung.bemerkung}" >> rows="12" cols="75" >>>   label="#{msgs.bewerben_bemerkungen}" >  > >> maximum="512" />  >>> >>>   and >>> >>>   @Lob >>>   @Size(max=512) >>>   @Column(name="Bemerkung") >>>   private String bemerkung; >>> >>>   Both didn't work. The only thing that works would be to define a >>> string >> in >>>   the view bean and move this string into the entity later. >>> >>>   I couldn't find any hints in the internet about a default length > of >>> 255  characters. >>> >>>   Any ideas ? >>> >>>   best regards >>> >>>   Thomas >>> >>> >>> >>> >> >