com.ibm.passwordrules.standard
Class MinLengthConstraint

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

public class MinLengthConstraint
extends LexicalRule

This class implements built-in rule for restricting the minimum number of characters in a password.

See Also:
Serialized Form

Field Summary
static java.lang.String TOO_SHORT
           
 
Fields inherited from class com.ibm.passwordrules.LexicalRule
DEFAULT_MAX_SEQUENTIAL_CHARACTERS, LOWER_CASE_ONLY, UPPER_CASE_ONLY
 
Constructor Summary
MinLengthConstraint()
           
MinLengthConstraint(int min)
           
 
Method Summary
 void constrain(PasswordGenerator template)
          Constrain the generation template to values we know are valid.
 int getMin()
           
 boolean join(Rule rule)
          Try to join the specified rule with this one.
 boolean validate(java.lang.String password, ValidationInfo validationInfo)
          Validate the given password using the given validation info.
 
Methods inherited from class com.ibm.passwordrules.LexicalRule
getParameter, setParameter, validateSafe
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

TOO_SHORT

public static java.lang.String TOO_SHORT
Constructor Detail

MinLengthConstraint

public MinLengthConstraint()

MinLengthConstraint

public MinLengthConstraint(int min)
Method Detail

getMin

public int getMin()

constrain

public void constrain(PasswordGenerator template)
Constrain the generation template to values we know are valid.
Overrides:
constrain in class LexicalRule
Parameters:
generator - including a character template to be constrained.

validate

public boolean validate(java.lang.String password,
                        ValidationInfo validationInfo)
                 throws InvalidPasswordException
Validate the given password using the given validation info.
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 precedent. Returns true if the two rules where joined.
Parameters:
rule - The rule to be joined with this one.
Returns:
True if the rule was joined to this one.