private <T> boolean mainConstraintNeedsEvaluation(ValidationContext<T> executionContext, Set<ConstraintViolation<T>> constraintViolations) { // we are dealing with a composing constraint with no validator for the main constraint if ( !descriptor.getComposingConstraints().isEmpty() && descriptor.getMatchingConstraintValidatorDescriptors().isEmpty() ) { return false; } if ( constraintViolations.isEmpty() ) { return true; } // report as single violation and there is already a violation if ( descriptor.isReportAsSingleViolation() && descriptor.getCompositionType() == AND ) { return false; } // explicit fail fast mode if ( executionContext.isFailFastModeEnabled() ) { return false; } return true; }
/** * Runs the validator resolution algorithm. * * @param validatedValueType The type of the value to be validated (the type of the member/class the constraint was placed on). * * @return The class of a matching validator. */ private <A extends Annotation> ConstraintValidatorDescriptor<A> findMatchingValidatorDescriptor(ConstraintDescriptorImpl<A> descriptor, Type validatedValueType) { Map<Type, ConstraintValidatorDescriptor<A>> availableValidatorDescriptors = TypeHelper.getValidatorTypes( descriptor.getAnnotationType(), descriptor.getMatchingConstraintValidatorDescriptors() ); List<Type> discoveredSuitableTypes = findSuitableValidatorTypes( validatedValueType, availableValidatorDescriptors.keySet() ); resolveAssignableTypes( discoveredSuitableTypes ); if ( discoveredSuitableTypes.size() == 0 ) { return null; } if ( discoveredSuitableTypes.size() > 1 ) { throw LOG.getMoreThanOneValidatorFoundForTypeException( validatedValueType, discoveredSuitableTypes ); } Type suitableType = discoveredSuitableTypes.get( 0 ); return availableValidatorDescriptors.get( suitableType ); }