ConfigValidationAnnotations.IsExactlyOneOf (Storm 2.7.1 API)

```
@Retention(RUNTIME)
@Target(FIELD)
public static @interface ConfigValidationAnnotations.IsExactlyOneOf
```
Custom validator where exactly one of the validations must be successful. Used for overloaded configuration, where value must match one (and exactly one) format of supplied values.

- Required Element Summary
  
  Required Elements
  Modifier and Type Required Element Description
  
  Class<?>[] valueValidatorClasses
- Optional Element Summary
  
  Optional Elements
  Modifier and Type Optional Element Description
  
  Class<?> validatorClass

- Element Detail
  - valueValidatorClasses
```
Class<?>[] valueValidatorClasses
```
- - validatorClass
```
Class<?> validatorClass
```
    Default:
    
    org.apache.storm.validation.ConfigValidation.CustomIsExactlyOneOfValidators.class