public static final KeyPressHandler getRegExKeyPressHandler ( final String pregEx ) { if ( StringUtils . isEmpty ( pregEx ) ) { return null ; } RegExKeyPressHandler result = HandlerFactory . REG_EX_KEY_PRESS_HANDLER_MAP . get ( pregEx ) ; if ( result == null ) { result = new RegExKeyPressHandler ( pregEx ) ; } return result ; }
get a key press handler which allows all characters which could match a reg ex .