Neither JSR-303 nor Hibernate Validator has any ready-made constraint that can validate each elements of Collection. One possible solution to address this issue is to create a custom @ValidCollection constraint and corresponding validator implementation ValidCollectionValidator. To validate each element of collection we need an instance of Validator inside ValidCollectionValidator; and to get such instance we … Read more
Introduction Since you didn’t give any feedback on my comment with the question what container you’re using, I peeked around in your question history to learn what containers you’re all using. As far I found only Tomcat. So I’ll for this answer assume that you’re indeed using Tomcat as I initially guessed while posting the … Read more
Define method that must validate to true and put the @AssertTrue annotation on the top of it: @AssertTrue private boolean isOk() { return someField != something || otherField != null; } The method must start with ‘is’.
Introduction You can do it, but JSF ajax/action/listener methods are semantically the wrong place to do validation. You actually don’t want to get that far in JSF lifecycle if you’ve wrong input values in the form. You want the JSF lifecycle to stop after JSF validations phase. You want to use a JSR303 Bean Validation … Read more
For multiple properties validation, you should use class-level constraints. From Bean Validation Sneak Peek part II: custom constraints: Class-level constraints Some of you have expressed concerns about the ability to apply a constraint spanning multiple properties, or to express constraint which depend on several properties. The classical example is address validation. Addresses have intricate rules: … Read more
Each field constraint should be handled by a distinct validator annotation, or in other words it’s not suggested practice to have one field’s validation annotation checking against other fields; cross-field validation should be done at the class level. Additionally, the JSR-303 Section 2.2 preferred way to express multiple validations of the same type is via … Read more