com.ibm.passwordrules.standard
Class MinAlphabeticCharacters

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

public class MinAlphabeticCharacters
extends LexicalRule

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

See Also:
Serialized Form

Field Summary
static java.lang.String INSUFFICIENT_ALPHA_CHARS
           
 
Fields inherited from class com.ibm.passwordrules.LexicalRule
DEFAULT_MAX_SEQUENTIAL_CHARACTERS, LOWER_CASE_ONLY, UPPER_CASE_ONLY
 
Constructor Summary
MinAlphabeticCharacters(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

INSUFFICIENT_ALPHA_CHARS

public static java.lang.String INSUFFICIENT_ALPHA_CHARS
Constructor Detail

MinAlphabeticCharacters

public MinAlphabeticCharacters(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 precedence.
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.