Fine by me. Just trying to get my head around the issue at hand ... Werner
> -----Original Message----- > From: Ralf Joachim [mailto:[EMAIL PROTECTED] > Sent: Mittwoch, 22. März 2006 15:02 > To: [email protected] > Subject: Re: [castor-user] Castor defaults numeric java objects to 0 > > Werner, > > if the properties in the class are defined as follows: > > private String first = null; > private Integer second = new Integer(5); > > and the unmarshalled XML does not include tags or attributes > for this properties. Their default value defined in the class > should not be changed at unmarshal process. > > Having said that at field mapping you need to define > required="false" at the corresponding tags/attributes. > > Therefore I don't see any reason why we need to define a > default value or nillable attribute in mapping as this can be > defined in the source code of the class. > > Regards > Ralf > > > Werner Guttmann schrieb: > > Ralf, > > > > I read Stephen's comment in the way that the source > generator apparently (to be verified) can deal with nillable > being used in an XML Schema. That imho would imply that the > XMLClassDescriptots being generated know how to deal with > such situations. If that's the case, my idea was to > 'implement' a similar (if not the same .. ;-)) funtionality > for people not using the source generator, but relying on > mapping files only. > > > > Werner > > > > > >>-----Original Message----- > >>From: Ralf Joachim [mailto:[EMAIL PROTECTED] > >>Sent: Mittwoch, 22. März 2006 10:03 > >>To: [email protected] > >>Subject: Re: [castor-user] Castor defaults numeric java objects to 0 > >> > >>I don't think something should be added to the mapping file. > >>The user should be able to set default value in his source code and > >>Castor should only change this value when a corresponding tag or > >>attribute is unmarshalled. If Castor changes a property > when it should > >>not then this is a bug. > >> > >>When there is no possibility to define a default value for > a property > >>with source generator then we should add this feature to source > >>generator. > >> > >>Ralf > >> > >> > >>Werner Guttmann schrieb: > >> > >>>Stephen, Michael, > >>> > >>>Why don't we add a 'nillable' attribute to the mapping file ? > >>> > >>>Werner > >>> > >>> > >>> > >>>>-----Original Message----- > >>>>From: Stephen Bash [mailto:[EMAIL PROTECTED] > >>>>Sent: Dienstag, 21. März 2006 21:12 > >>>>To: [email protected] > >>>>Subject: Re: [castor-user] Castor defaults numeric java > objects to 0 > >>>> > >>>>Michael- > >>>> > >>>>So I remembered this discussion a while back and dug through the > >>>>archives to find it. > >>>> > >>>>http://marc.theaimsgroup.com/?l=castor-user&m=112267315616893&w=2 > >>>> > >>>>If you're using a schema and source generation, then > possibly using > >>>>nillable in the schema will help. > >>>> > >>>>Just went digging through the code, and while there doesn't > >> > >>seem to be > >> > >>>>a way to access nillable from the mapping file, you can set > >> > >>nillable > >> > >>>>if you get your hands on the XMLFieldDescriptorImpl. I > >> > >>could see an > >> > >>>>implementation (albeit non-optimal) where a mapping file > is loaded, > >>>>and then the the necessary ClassDescriptors are retrieved > >> > >>in order to > >> > >>>>get the XMLFieldDescriptor objects and set nillable to true. > >>>> > >>>>Sorry I can't be of much more help. > >>>> > >>>>Stephen > >>>> > >>>> > >>>>On 3/21/06, Michael Heath <[EMAIL PROTECTED]> wrote: > >>>> > >>>> > >>>>>True objects, Floats, Integers, etc. > >>>>> > >>>>> > >>>>> > >>>>> > >>>>>>From: "Stephen Bash" <[EMAIL PROTECTED]> > >>>>>>Reply-To: [email protected] > >>>>>>To: [email protected] > >>>>>>Subject: Re: [castor-user] Castor defaults numeric java > >>>> > >>>>objects to 0 > >>>> > >>>> > >>>>>>Date: Tue, 21 Mar 2006 14:18:36 -0500 > >>>>>> > >>>>>>Michael- > >>>>>> > >>>>>>What types of objects are we referring to? Primitives, > primitive > >>>>>>wrappers or true objects? > >>>>>> > >>>>>>Thanks, > >>>>>>Stephen > >>>>>> > >>>>>> > >>>>>>On 3/21/06, Michael Heath <[EMAIL PROTECTED]> wrote: > >>>>>> > >>>>>> > >>>>>>>Hi, > >>>>>>> > >>>>>>>I have XML I am unmarhsalling and when the field is > >>>> > >>>>empty I want > >>>> > >>>> > >>>>>>>to have > >>>>>> > >>>>>>the > >>>>>> > >>>>>> > >>>>>>>java object set to null. > >>>>>>> > >>>>>>>The default behaviour appears to be setting the java > >>>> > >>>>object to a 0 > >>>> > >>>> > >>>>>>>value...this is of course a big problem if the value is > >>>> > >>>>supposed > >>>> > >>>> > >>>>>>>to be > >>>>>> > >>>>>>empty > >>>>>> > >>>>>> > >>>>>>>and not 0. > >>>>>>> > >>>>>>>Can anyone advise? I wrote a custom field handler but > >>>> > >>>>this seems > >>>> > >>>> > >>>>>>>to be called after the object is created and set to 0. > >>>>>>> > >>>>>>>thanks > >>>>>>>M > >>>>>>> > >>>>>>> > >>>>>>> > >>>>>>>------------------------------------------------- > >>>>>>>If you wish to unsubscribe from this list, please send > an empty > >>>>>>>message to the following address: > >>>>>>> > >>>>>>>[EMAIL PROTECTED] > >>>>>>>------------------------------------------------- > >>>>>>> > >>>>>>> > >>>>> > >>>>> > >>>>> > >>>>>------------------------------------------------- > >>>>>If you wish to unsubscribe from this list, please send an empty > >>>>>message to the following address: > >>>>> > >>>>>[EMAIL PROTECTED] > >>>>>------------------------------------------------- > >>>>> > >>>>> > >>>> > >>>------------------------------------------------- > >>>If you wish to unsubscribe from this list, please send an empty > >>>message to the following address: > >>> > >>>[EMAIL PROTECTED] > >>>------------------------------------------------- > >> > >>-- > >> > >>Syscon Ingenieurbüro für > >>Meß- und Datentechnik GmbH > >>Ralf Joachim > >>Raiffeisenstraße 11 > >>D-72127 Kusterdingen > >>Germany > >> > >>Tel. +49 7071 3690 52 > >>Mobil: +49 173 9630135 > >>Fax +49 7071 3690 98 > >> > >>Email: [EMAIL PROTECTED] > >>Web: www.syscon-world.de > >> > >>------------------------------------------------- > >>If you wish to unsubscribe from this list, please send an empty > >>message to the following address: > >> > >>[EMAIL PROTECTED] > >>------------------------------------------------- > >> > >> > >> > > > > > > ------------------------------------------------- > > If you wish to unsubscribe from this list, please send an empty > > message to the following address: > > > > [EMAIL PROTECTED] > > ------------------------------------------------- > > -- > > Syscon Ingenieurbüro für > Meß- und Datentechnik GmbH > Ralf Joachim > Raiffeisenstraße 11 > D-72127 Kusterdingen > Germany > > Tel. +49 7071 3690 52 > Mobil: +49 173 9630135 > Fax +49 7071 3690 98 > > Email: [EMAIL PROTECTED] > Web: www.syscon-world.de > > ------------------------------------------------- > If you wish to unsubscribe from this list, please send an > empty message to the following address: > > [EMAIL PROTECTED] > ------------------------------------------------- > > > ------------------------------------------------- If you wish to unsubscribe from this list, please send an empty message to the following address: [EMAIL PROTECTED] -------------------------------------------------
