Validator

All Superinterfaces:

java.util.EventListener
```
public interface Validator
extends java.util.EventListener
```
Validator is an interface for validating a object.

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  ValidationResult validating(ValidationObject vo)
  Validates the value in the ValidationObject.

- Method Detail
  - validating
```
ValidationResult validating(ValidationObject vo)
```
    Validates the value in the ValidationObject.
    The event has both old value and new value as well as the source who sends this object. The implementation of this method should validate if the value is valid. If the value is valid, simply return ValidationResult.OK. Otherwise, constructs a ValidationResult and provide the id and message.
    
    Parameters:
    
    vo - the ValidationObject
    
    Returns:
    
    ValidationResult