javax.security.enterprise.credential

Class AbstractClearableCredential

java.lang.Object

javax.security.enterprise.credential.AbstractClearableCredential

All Implemented Interfaces:

Credential

Direct Known Subclasses:

UsernamePasswordCredential

public abstract class AbstractClearableCredential
extends Object
implements Credential

AbstractClearableCredential contains behavior common to Credential implementations that can be meaningfully cleared.

Constructor Summary

Constructors

Constructor and Description
AbstractClearableCredential()

Method Summary

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.