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## javax.security.auth
Interface Refreshable

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.

See Also:
  `Subject`

Method Summary
`boolean` | `isCurrent()` Determine if this `Object` is current.
`void` | `refresh()` Update or extend the validity period for this `Object`.

Method Detail

### isCurrent

    public boolean isCurrent()

  Determine if this `Object` is current.

  Returns:
    true if this `Object` is currently current, false otherwise.

### refresh

    public 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.

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