Credential (Java EE 8)

All Known Implementing Classes:

AbstractClearableCredential, BasicAuthenticationCredential, CallerOnlyCredential, RememberMeCredential, UsernamePasswordCredential
```
public interface Credential
```
Credential represents the credential the caller will use to authenticate.

Method Summary

All Methods Instance Methods Default Methods
Modifier and Type	Method	Description
`default void`	`clear()`	Clears the credential.
`default boolean`	`isCleared()`	Determines whether the credential value has been securely cleared.
`default boolean`	`isValid()`	Determines whether the credential is valid.

- Method Detail
  - isCleared
```
default boolean isCleared()
```
    Determines whether the credential value has been securely cleared.
    
    Returns:
    
    true if the credential has been cleared, otherwise false.
  - clear
```
default void clear()
```
    Clears the credential. For example, if the credential includes a password, this method would overwrite the password value.
  - isValid
```
default boolean isValid()
```
    Determines whether the credential is valid. This would be called as part of the credential validation process to check the integrity of the credential, such as a signature check. This check would be self-contained, not requiring identity store access.
    
    Returns:
    
    true if credential has integrity.