org.jboss.as.domain.management.security.password

Interface Keyboard

All Known Implementing Classes:

SimpleKeyboard

public interface Keyboard

Keybord interface. Defines methods which allow user to detect if characters in 'word' are situated next to each other on keybord. For instance:

    -----     -----          -----
    | G | --- | H | .... --- | K |
    -----     -----          -----
      |
    -----
    | V |
    -----

 

V and H are siblings of G. While K is not.

Author:

baranowb

Method Summary

Methods

Modifier and Type	Method and Description
int	sequence(String word, int index) Detects sequence of keys in word.
boolean	siblings(String word, int index) Detects if char next to index is its sibling.
boolean	siblings(String word, int index, int isSiblingIndex) Just as siblings(String, int), but it accepts index of second char that is a subject to test.

Method Detail

siblings

boolean siblings(String word,
               int index)

Detects if char next to index is its sibling.

Parameters:

word - - string against which checks are performed.

index - - index of character to be tested.

Returns:

true if characters are siblings.

Throws:

IllegalArgumentException - if index is wrong or null argument is passed.

siblings

boolean siblings(String word,
               int index,
               int isSiblingIndex)

Just as siblings(String, int), but it accepts index of second char that is a subject to test. This allows to detect patterns of keystrokes.

Parameters:

word - - string against which checks are performed.

index - - index of character to be tested.

isSiblingIndex - - index of second character to be tested.

Returns:

true if characters are siblings.

Throws:

IllegalArgumentException - if index is wrong or null argument is passed.

sequence

int sequence(String word,
           int index)

Detects sequence of keys in word. If siblings(String, int) returns true for 'index', Than this method will return at least '1' - indcating that after 'index' there is sequence of chars. Example:

  String word = "ASDFG";
  Keyboard.sequence(word,0) == word.length()-1;
 

Parameters:

word - - word in which keyboard is to search for keys sequence.

index - - start index of search.

Returns:

- number of characters in sequence