[hibernate-issues] [Hibernate-JIRA] Commented: (BVAL-267) Provide a ConstraintViolationException builder to facilitate consumer code

[ https://hibernate.onjira.com/browse/BVAL-267?page=com.atlassian.jira.plug... ] Antonio Goncalves commented on BVAL-267: ---------------------------------------- After a quick Tweet about facilitating the creation of {{ConstraintViolationException}}, Emmanuel suggested that I explain myself a bit longer (https://twitter.com/emmanuelbernard/status/173884950544777217). So here I go. Not all the constraints can be expressed with annotations. Some business constraints follow complex workflows that BV cannot help with. In such cases, we end up using our own exception : {code} if (complexBusinessConstraint) throw new ComplexBusinessException("A complex business constraint has been violated"); {code} In a typical EJB/JSF world we then have to catch this exception and use the {{FacesContext}} to add a {{FacesMessage}} so it can be displayed to the user. It would be nice if we could use the BV/JSF integration and do something like that so a simple message is automatically displayed (or resource bundle) : {code} if (complexBusinessConstraint) throw new ConstraintViolationException("A complex business constraint has been violated"); {code} This way we don't have to try to tweek a {{Set<ConstraintViolation<?>>}} (which is the constructor of {{ConstraintViolationException}}) or play with the {{ConstraintValidatorContext}} to build a constraint violation. So really the title of this JIRA should be _Provide a ConstraintViolationException constructor to facilitate JSF integration_ (or something like that). -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira