ExpiryScanner (Narayana: ArjunaJTA narayana-jta 5.12.6.Final API)

```
public interface ExpiryScanner
```
Interface for Expiry scanner plug-ins. ExpiryScanners check for ancient entries in the ObjectStore (or elsewhere) to avoid leaving long-dead and irrelevant entries lying around for ever. The scan() method of each registered ExpiryScanner implementation is called by the RecoveryManager at an interval expiryScanInterval (hours).

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`void`	`scan()` perform a scan
`boolean`	`toBeUsed()` Is this scanner to be used.

Interface ExpiryScanner