Refreshable (Java Platform SE 6) - JDK 5 Documentation v6.0, Java 2 SDK 英文文档

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Java™ Platform
Standard Ed. 6

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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 Summary
`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.