AbstractClearableCredential

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java.lang.Object
- javax.security.enterprise.credential.AbstractClearableCredential

All Implemented Interfaces:

Credential

Direct Known Subclasses:

UsernamePasswordCredential
```
public abstract class AbstractClearableCredential
extends java.lang.Object
implements Credential
```
AbstractClearableCredential contains behavior common to Credential implementations that can be meaningfully cleared.

Constructor Summary

Constructors
Constructor and Description

AbstractClearableCredential()

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`clear()` Clears the credential.
`protected abstract void`	`clearCredential()` Invokes the specific subclass to securely clear the credential value.
`boolean`	`isCleared()` Determines whether the credential value has been securely cleared.
`protected void`	`setCleared()` Specifies that the credential value has been securely cleared.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface javax.security.enterprise.credential.Credential
isValid

- Constructor Detail
  - AbstractClearableCredential
```
public AbstractClearableCredential()
```
- Method Detail
  - isCleared
```
public final boolean isCleared()
```
    Description copied from interface: Credential
    
    Determines whether the credential value has been securely cleared.
    
    Specified by:
    
    isCleared in interface Credential
    
    Returns:
    
    true if the credential has been cleared, otherwise false.
  - setCleared
```
protected final void setCleared()
```
    Specifies that the credential value has been securely cleared.
  - clear
```
public final void clear()
```
    Description copied from interface: Credential
    
    Clears the credential. For example, if the credential includes a password, this method would overwrite the password value.
    
    Specified by:
    
    clear in interface Credential
  - clearCredential
```
protected abstract void clearCredential()
```
    Invokes the specific subclass to securely clear the credential value. Some Credential subclasses contain credential values which are inherently secure, such as tokens, for which clearing the credential may not be necessary.
    For example, if the credential includes a password, this method would overwrite the password value.

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