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] -------------------------------------------------
