Hi Nail. I'm the one who created that copy of 1.4, so it's fine if we repurpose it, see VALIDATOR-279.

As far as the API, we already have a clean room copy of the 1.0 GA API created over in the Apache Geronimo Specs subproject [1], with the other Java EE spec APIs we ship, so I'd be -1 on creating another copy, see VALIDATOR-274 for history.

As far as the provider implementation, I've been working with the Agimatec-Validation project [2] currently hosted on Google Code which is ASL 2.0 licensed to bring it over to Apache. I have a completed SGA from the company (Agimatec Gmbh) that developed the code, but was working with some other ASF members on how we should bring the code into the ASF, so guess it's time to start discussing that here. Currently, our thoughts were to bring it in as a subproject to an existing TLP (like Commons, OpenJPA or Geronimo) and not create a new Incubator Podling, since we have committers from multiple projects interested in working on a JSR-303 implementation (Geronimo, OpenJPA, MyFaces, OpenEJB, Commons, ...). The only complication, is that we would need to offer committership to Roman from Agimatec as soon as the Incubator IP clearance is finished, as he would need to be the one to remove the existing Agimatec copyright statements. Thoughts?


[1] https://svn.apache.org/repos/asf/geronimo/specs/trunk/geronimo-validation_1.0_spec

[2] http://code.google.com/p/agimatec-validation/


-Donald


Niall Pemberton wrote:
The current trunk in the validator2 sandbox is a copy of the Validator
1.4 code from "commons proper" - but I think we should dump all the
existing validator framework code and just retain the "routines"
package. Trying to maintain any sort of compatibility with the
existing validator framework would be alot more work and code and
create a real mess IMO and I think it would be better to not to even
try. The "routines" package was refactored realtively recently(!) and
can stand on its own.

So I would like to propose the following direction for a Validator2
based on the Bean Validation Framework(JSR 303) - a project with three
separate modules composing of:

  - The Bean Validation (JSR303) API - no dependencies
  - Standalone Validation Routines (based on existing validator
routines package) - no dependencies including Bean Validation API
  - Validation Framework - JSR303 implementation (depends on two modules above)

I have created an alternative branch in the Validator sandbox project
based on the above approach:

http://svn.apache.org/viewvc/commons/sandbox/validator2/branches/alternative/

I have created a "clean room" implementation of the Bean Validation
API[1] which (hopefully) is complete except for JavaDocs. The only
real functionality is in javax.validation.Validation - the rest are
annotations, interfaces and exceptions. I have also copied the
"routines" package into a standalone module[2]. So the next thing is
to start the actual framework implementation module.

How does this sound as an approach?

Niall

[1] 
http://svn.apache.org/viewvc/commons/sandbox/validator2/branches/alternative/validation-api/
[2] 
http://svn.apache.org/viewvc/commons/sandbox/validator2/branches/alternative/validation-routines/
[3] 
http://svn.apache.org/viewvc/commons/sandbox/validator2/branches/alternative/validation-framework/

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