On 20 Mar 2017, at 04:34, Gunnar Morling <gunnar(a)hibernate.org>
Thanks for bringing up this issue, Nathan.
The Bean Validation spec expects the file to be at META-INF/validation.xml, no matter
what type of application it is. I'll need to dig a bit deeper why the platform spec
> the TCK uses the WEB-INF/validation.xml location
Do you have a pointer to this usage? Please send it to me off-list if it's somewhere
within the EE TCK. The BV TCK itself uses META-INF/validation.xml.
> Therefore, I'd expect a lot of users in the field to be using the WEB-INF
I just tried WEB-INF/validation.xml in a plain WAR as well as a WAR within an EAR, and it
wouldn't be applied either way (testing the BV reference implementation). Do you have
a test case which shows successful usage of WEB-INF/validation.xml?
> Otherwise, the JavaEE Platform spec could be changed to no longer state
My current inclination is to suggest exactly that to the Java EE leads, as it seems like
a glitch and I can't see how it'd ever work with the RI. But I'll synch with
Emmanuel (former BV lead) to make sure I'm not missing a piece.
> The implementation of 'WEB-INF/validation.xml' for the web components and
> integration with Bean Validation is the full responsibility (EE.5.16.2) of the Java
> Product Provider that declares it
You seem to suggest that a container somehow may make it that WEB-INF/validation.xml is
exposed as META-INF/validation.xml to the BV provider. That may theoretically be doable,
but I don't think it's intended or suggested by the EE spec.
Specifically, section EE.5.16 deals with the "application client container"
property which the container must set depending on where this app is running (ACC vs.
web/EJB container). It's not related to the retrieval of BV deployment descriptors.
2017-03-17 20:03 GMT+01:00 Marco Molteni <moltenma(a)gmail.com
I agree that can be confusing for the developers that read the two documents but the
specification of BV is, IMHO, consistent:
1.2. Specification Goals: 'The validation API developed by this JSR is not intended
for use in any one tier or programming model. It is specifically not tied to either the
web tier or the persistence tier'.
And the JavaEE spec version 7 (and 8) :
'EE.5.16.2 Java EE Product Provider’s Responsibilities
The Java EE Product Provider is responsible for providing the correct application client
container property as required by this specification.'
'EE.5.17.1 Application Component Provider’s Responsibilities
[...] The Application Component Provider may customize the ValidatorFactory and
(indirectly) Validator instances by including a Bean Validation deployment descriptor
inside a specific module of the application.'
'EE.5.17.2 Java EE Product Provider’s Responsibilities
[...] These objects must be used to configure the default ValidatorFactory available at
java:comp/ValidatorFactory in accordance with the bootstrapping APIs described by the Bean
Validation specification. [...]'
The implementation of 'WEB-INF/validation.xml' for the web components and its
integration with Bean Validation is the full responsibility (EE.5.16.2) of the Java EE
Product Provider that declares it .
The Bean Validation doesn't have to worry (or know) about the existence of a web
component or a web configuration directory, it's out of its scope.
The correct configuration and communication between these (Web and BC) and other
components is regulated by the container (EE.2.4).
The documents are (maybe) confusing but correct, in my opinion.
> Am 15.03.2017 um 17:39 schrieb Nathan Mittlestat <nmittles(a)gmail.com
> Hi All,
> One area I'd like to see a clarification on in the spec is around the location of
the validation.xml in a JavaEE web container environment. The Bean Validation spec
indicates the validation.xml is always at META-INF/validation.xml. The JavaEE Platform
spec states WEB-INF/validation.xml should be used for web modules. The entire Bean
Validation spec has no mention of web modules, and seems to mainly focus on JavaSE.
However, it does mention integration points such as CDI and JAX-RS, so I don't think
it would be out of line to clarify in the Bean Validation spec for web modules.
Otherwise, the JavaEE Platform spec could be changed to no longer state
WEB-INF/validation.xml, but previous JavaEE versions already include this, and the TCK
uses the WEB-INF/validation.xml location. Therefore, I'd expect a lot of users in the
field to be using the WEB-INF location.
> The Bean Validation spec has the following section (page 206):
> Unless explicitly ignored by calling Configuration.ignoreXMLConfiguration(), a
Configuration takes into
> account the configuration available in META-INF/validation.xml. This configuration
file is optional but
> can be used by applications to refine some of the Bean Validation behavior. If more
than one META-
> INF/validation.xml file is found in the classpath, a ValidationException is raised.
> In contrasts the JavaEE Platform spec has (page 127 of JavaEE 7):
> In order to customize the returned ValidatorFactory, an EJB, web or
> application client module may specify a Bean Validation XML deployment
> descriptor. The name of the descriptor is WEB-INF/validation.xml for web
> modules and META-INF/validation.xml for all other types of modules.
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