Modifier and Type	Method	Description
`final Unit`	`setClock(Clock clock)`	Updates the clock instance used for expiration verification purposes.
`abstract Unit`	`saveCredentials(Credentials credentials)`
`abstract Unit`	`getCredentials(Callback<Credentials, CredentialsManagerException> callback)`
`abstract Unit`	`getCredentials(String scope, Integer minTtl, Callback<Credentials, CredentialsManagerException> callback)`
`abstract Unit`	`clearCredentials()`
`abstract Boolean`	`hasValidCredentials()`
`abstract Boolean`	`hasValidCredentials(Long minTtl)`

Methods inherited from class com.auth0.android.authentication.storage.BaseCredentialsManager
equals, hashCode, toString
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

setClock
```
 final Unit setClock(Clock clock)
```
Updates the clock instance used for expiration verification purposes. The use of this method can help on situations where the clock comes from an external synced source. The default implementation uses the time returned by System.currentTimeMillis.

 abstract Unit saveCredentials(Credentials credentials)

 abstract Unit getCredentials(Callback<Credentials, CredentialsManagerException> callback)

 abstract Unit getCredentials(String scope, Integer minTtl, Callback<Credentials, CredentialsManagerException> callback)

 abstract Boolean hasValidCredentials(Long minTtl)

Class BaseCredentialsManager