private String getPrefix() {
    final Class<? extends GrPsiUpdateIntention> aClass = getClass();
    final String name = aClass.getSimpleName();
    final StringBuilder buffer = new StringBuilder(name.length() + 10);
    buffer.append(Character.toLowerCase(name.charAt(0)));
    for (int i = 1; i < name.length(); i++) {
      final char c = name.charAt(i);
      if (Character.isUpperCase(c)) {
        buffer.append('.');
        buffer.append(Character.toLowerCase(c));
      }
      else {
        buffer.append(c);
      }
    }
    return buffer.toString();
  }
private String getPrefix()