com.ibm.passwordrules.standard
Class NotReversed

java.lang.Object
  |
  +--com.ibm.passwordrules.BehavioralRule
        |
        +--com.ibm.passwordrules.standard.NotReversed
All Implemented Interfaces:
java.lang.Cloneable, Rule, java.io.Serializable

public class NotReversed
extends BehavioralRule

This class implements built-in rule for restricting passwords to be different then previously used passwords present in a reversed history list.

See Also:
Serialized Form

Field Summary
static java.lang.String REUSED
           
 
Constructor Summary
NotReversed()
          Standard constructor.
NotReversed(int historyLength)
          Constructor that specifies the length of the history to check.
 
Method Summary
 int getHistoryLength()
           
 boolean join(Rule rule)
          Try to join the specified rule with this one.
 void setHistoryLength(int historyLength)
           
 boolean validate(java.lang.String password, ValidationInfo validationInfo)
          Validate the given password using the given validation info.
 
Methods inherited from class com.ibm.passwordrules.BehavioralRule
constrain, getParameter, setParameter, validateSafe
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

REUSED

public static java.lang.String REUSED
Constructor Detail

NotReversed

public NotReversed()
Standard constructor.

NotReversed

public NotReversed(int historyLength)
Constructor that specifies the length of the history to check.
Method Detail

getHistoryLength

public int getHistoryLength()

setHistoryLength

public void setHistoryLength(int historyLength)

validate

public boolean validate(java.lang.String password,
                        ValidationInfo validationInfo)
                 throws InvalidPasswordException
Validate the given password using the given validation info.
Overrides:
validate in class BehavioralRule
Parameters:
validationInfo - contains contextual information about the password being validated.
password - Password to validate.
Returns:
true if password is valid
Throws:
InvalidPasswordException - thrown when password is invalid.

join

public boolean join(Rule rule)
             throws IncompatibleRulesException
Try to join the specified rule with this one. The more restrictive rule takes precedence.
Overrides:
join in class BehavioralRule
Parameters:
rule - The rule to be joined with this one.
Returns:
True if the rule was successfully joined.
Throws:
IncompatibleRulesException - Thrown when given rule cannot be joined because it is not compatible.