I am not familiar with the GWT Validation framework.
I'm not really sure why people use it considering vanilla GWT supports
JSR303 (the documentation is pretty bad admittedly).
Using plain GWT you would have a class-level validation annotation:
@Target(ElementType.TYPE)@Retention(RetentionPolicy.RUNTIME)@Constraint(validatedBy
= PasswordsEqualValidator.class)@Documentedpublic @interface PasswordsEqual {
String DEFAULT_MESSAGE = "Passwords must be the same";
String message() default DEFAULT_MESSAGE; Class<?>[] groups()
default {}; Class<? extends Payload>[] payload() default {};}
Then you would need a custom validator. Mine looks like this:
public class PasswordsEqualValidator implements
ConstraintValidator<PasswordsEqual, CreateAccountBean> { @Override
public void initialize(PasswordsEqual constraintAnnotation) {}
@Override public boolean isValid(CreateAccountBean value,
ConstraintValidatorContext context) { if( value
== null ) return true;
String password = value.getPassword(); String confirmPassword =
value.getConfirmPassword(); if( password == null
&& confirmPassword == null ) return true;
if( password != null && password.equals(confirmPassword) )
return true; return false;
}}
Then annotate the javabean class being validated with @PasswordsEqual
This works on the client and server.
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