private Cursor getIssuerCursor(String issuer) {
    return mDatabase.query(TABLE_NAME, null, whereClauseForIssuer(issuer),
        null, null, null, null);
  }
Swaps the value of the {@link #ID_COLUMN} associated with the passed two AccountIndexes.

@param firstIndex the {@link AccountIndex} to be swapped
@param secondIndex the {@link AccountIndex} to be swapped
java/com/google/android/apps/authenticator/otp/AccountDb.java