Refreshable (Java SE 9 & JDK 9 )

All Known Implementing Classes:

KerberosTicket
```
public interface Refreshable
```
Objects such as credentials may optionally implement this interface to provide the capability to refresh itself. For example, a credential with a particular time-restricted lifespan may implement this interface to allow callers to refresh the time period for which it is valid.

Since:

1.4

See Also:

Subject

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`isCurrent()`	Determine if this `Object` is current.
`void`	`refresh()`	Update or extend the validity period for this `Object`.

- Method Detail
  - isCurrent
```
boolean isCurrent()
```
    Determine if this Object is current.
    
    Returns:
    
    true if this Object is currently current, false otherwise.
  - refresh
```
void refresh()
      throws RefreshFailedException
```
    Update or extend the validity period for this Object.
    
    Throws:
    
    SecurityException - if the caller does not have permission to update or extend the validity period for this Object.
    
    RefreshFailedException - if the refresh attempt failed.