[hibernate-issues] [Hibernate-JIRA] Resolved: (HV-242) Cache ConstraintValidator instances per ValidatorFactory and not per ConstraintTree

[Hardy Ferentschik (JIRA)]

     [ http://opensource.atlassian.com/projects/hibernate/browse/HV-242?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hardy Ferentschik resolved HV-242.
----------------------------------

       Resolution: Fixed
    Fix Version/s:     (was: 4.1.0)
                   4.0.0.GA

> Cache ConstraintValidator instances per ValidatorFactory and not per ConstraintTree
> -----------------------------------------------------------------------------------
>
>                 Key: HV-242
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HV-242
>             Project: Hibernate Validator
>          Issue Type: Improvement
>          Components: engine
>    Affects Versions: 4.0.0.GA
>            Reporter: Emmanuel Bernard
>            Priority: Minor
>             Fix For: 4.0.0.GA
>
>
> Evaluate the possibility of caching initialized ConstraintValidator implementations at the ValidatorFactory level instead of creating and initializing them for each ConstraintTree (ie each constraint evaluation.
> It should be uniquely identified by:
>  - the constraint declaration is belongs to (as it is initialized for a specific constraint)
>  - the ConstraintValidatorFactory it belongs to as this is the CV provider
> Note that by side effect we will be caching the findMatchingValidatorClass results. Since types are the class types, we can cache the ConstraintValidator class expected to be used for a given constraint declaration.
> If we cache for all ConstraintValidatorFactory, then a concurrent identity based weak hash map has to be used.as CVF instances provided by users could be discarded rapidly. An alternative would be to cache only for the default VF CVF. In that case the map should only be a concurrent hashmap.

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira