@Constraint(validatedBy = FieldPairRequiredValidator.class)
@Target( {ElementType.TYPE, ElementType.CONSTRUCTOR} ) 
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface FieldPairRequired
{
    public abstract String message() default "When one field is specified, the second must be specified as well.";   

    public abstract Class<?>[] groups() default {};
   
    public abstract Class<? extends Payload>[] payload() default {};
   
    public String firstField();
   
    public String secondField();
}

public class FieldPairRequiredValidator implements ConstraintValidator<FieldPairRequired, Object>
{
   private String firstFieldName;
   private String secondFieldName;
   
   
   public void initialize(FieldPairRequired constraintAnnotation)
   {
      firstFieldName = constraintAnnotation.firstField();
      secondFieldName = constraintAnnotation.secondField();
   }
   
   
   public boolean isValid(Object value, ConstraintValidatorContext context)
   { 
      try
      {
         Object firstField = BeanUtils.getProperty(value, firstFieldName);
         Object secondField = BeanUtils.getProperty(value, secondFieldName);
         
         if((null == firstField && null != secondField) || (null == secondField && null != firstField))
         {
            return false;
         }
      }
      catch(Exception e)
      {
         System.err.println("Error: " + e);
         //ignore
      }
      
      return true; 
   } 
}

@FieldPairRequired(firstField = "id", secondField="secondId", message="Both Id and second Id must be specified when one is specified.")   
@ManagedBean 
@RequestScoped 
public class PersonSearch