Bean validation

adrian.tarau · **Joined:** Mon Jan 19, 2004 9:20 am **Posts:** 5

Hello,

I have a big problem trying to validate a bean before i call save it.

My problems is that I didn't find any class/method where I can get complete bean property information, as field length and if is nullable.

ClassMetadtaa offers information about available properties and the properties Type class. Column class offers information only about DB field name, so I cannot link those classes together to obtain all the information I need.

Any help is welcome.

emmanuel · **Posted:** Mon Jan 19, 2004 10:26 am

Use the Validatable interface

adrian.tarau · **Joined:** Mon Jan 19, 2004 9:20 am **Posts:** 5

Thanks, but no thanks.

This Validatable doesn't offer any metadata information. This means I must hardcode validation parameters in each bean, and I dont want to keep in sync all the time this validation info with the XML definition file.

I want to know at runtime all the informations form a <property> tag (of course without parsing the definition file myself.

Thanks.

emmanuel · **Posted:** Mon Jan 19, 2004 10:32 am

OK, does the meta tag fits your needs (don't asked me info, I've never used it).

adrian.tarau · **Joined:** Mon Jan 19, 2004 9:20 am **Posts:** 5

No, to complicate because I must manage normal definition and this metadtata information.

There is no other way?

emmanuel · **Posted:** Mon Jan 19, 2004 10:39 am

xdoclet tags and java generation that fits your needs. You need to do it yourself however

adrian.tarau · **Joined:** Mon Jan 19, 2004 9:20 am **Posts:** 5

:) No.

Ok it seems neccessary to load myself the XML file to build my metadata information.

Thanks.

michael · **Posted:** Mon Jan 19, 2004 11:31 am

You can get some Metadata by using SessionFactory.getClassMetadata

Don't know if that helps you

adrian.tarau · **Joined:** Mon Jan 19, 2004 9:20 am **Posts:** 5

No, is not enought. Thanks.