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copied!<p>To validate more than one field at once, use an annotation on type-Level and write a custom Validator that checks all String fields using your REGEXP.</p> <p>Edit: Provide example. This is quite ugly, because it uses Reflection and violates security, but maybe it gives you a general idea. If you dont use "object" but a concrete class or interface, you could possibly have success with regular getters.</p> <p>The Class under Test (and the Runner)</p> <pre><code> import javax.validation.Validation; import javax.validation.Validator; import validation.AllStringsRegex; @AllStringsRegex(value="l") public class UnderValidation { String a; String b; public static void main(String... args) { UnderValidation object = new UnderValidation(); object.a = "hello"; object.b = "world"; Validator validator = Validation.buildDefaultValidatorFactory().getValidator(); System.out.println(validator.validate(object)); } } </code></pre> <p>My Annotation:</p> <pre><code>@Target( { TYPE, ANNOTATION_TYPE }) @Retention(RUNTIME) @Constraint(validatedBy = AllStringsRegexValidator.class) @Documented public @interface AllStringsRegex { String message() default "String not regex"; String value() default ""; Class<?>[] groups() default {}; Class<? extends Payload>[] payload() default {}; } </code></pre> <p>My Validator</p> <pre><code>public class AllStringsRegexValidator implements ConstraintValidator<AllStringsRegex, Object> { private Pattern pattern = null; @Override public void initialize(AllStringsRegex annotation) { pattern = Pattern.compile(annotation.value()); } @Override public boolean isValid(Object object, ConstraintValidatorContext ctx) { for (Field f : object.getClass().getDeclaredFields()) { if (f.getType().equals(String.class)) { try { f.setAccessible(true); String value = (String)f.get(object); if (!pattern.matcher(value).find()) { return false; } } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } } } return true; } } </code></pre>

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