AllowEmptyString (rxmicro-validation 0.9 API)

```
@Documented
@Retention(SOURCE)
@Target({FIELD,METHOD,PARAMETER})
@SelfDocumented
public @interface AllowEmptyString
```
The annotated element may be optional, i.e. empty string BUT must be not null!
For null values use Nullable or NullableArrayItem constraint.
The RxMicro team does not recommend to use empty string as valid business object value, use null instead!

Since:

0.7

Author:

nedis

See Also:

RequiredAndNotEmptyStringConstraintValidator, Nullable, NullableArrayItem

- Optional Element Summary
  
  Optional Elements
  Modifier and Type Optional Element Description
  
  boolean off
  Allows disabling the validation rule if this rule is inherited from super class.

- Element Detail
  - off
```
boolean off
```
    Allows disabling the validation rule if this rule is inherited from super class.
    By default, disable is off.
    
    Returns:
    
    true if the validation must be disabled.
    
    Default:
    
    false