有没有一种声明性的方法来验证依赖于其中一个请求字段的请求参数？

public class UserRequest {
    @NotBlank
    private String name;

    @Email
    private String email;

    @Min(18)
    private int age;

    // getters and setters
}

# app/models/user.rb
class User < ApplicationRecord
  validates :name, presence: true
  validates :email, presence: true, format: { with: URI::MailTo::EMAIL_REGEXP }
  validates :age, numericality: { greater_than_or_equal_to: 18 }
end

import { validateOrReject, IsEmail, Min, IsNotEmpty } from 'class-validator';

class User {
  @IsNotEmpty()
  name: string;

  @IsEmail()
  email: string;

  @Min(18)
  age: number;
}

async function validateUser(user: User) {
  try {
    await validateOrReject(user);
    console.log('Validation succeeded');
  } catch (errors) {
    console.log('Validation failed: ', errors);
  }
}

@Target({ElementType.TYPE})
@Retention(RetentionPolicy.RUNTIME)
@Constraint(validatedBy = UserValidator.class)
public @interface ValidUser {
    String message() default "Invalid user";
    Class<?>[] groups() default {};
    Class<? extends Payload>[] payload() default {};
}

public class UserValidator implements ConstraintValidator<ValidUser, UserRequest> {
    @Override
    public boolean isValid(UserRequest user, ConstraintValidatorContext context) {
        // 自定义验证逻辑
        if (user.getAge() < 18 && !"minor@example.com".equals(user.getEmail())) {
            return false;
        }
        return true;
    }
}