class ZMSFileChangeLogStoreCommon {

    public String retrieveLastModificationTime() {
        Struct lastModStruct = get(LAST_MOD_FNAME, Struct.class);
        if (lastModStruct == null) {
            return null;
        }
        return lastModStruct.getString(ATTR_LAST_MOD_TIME);
    }

    public  ZMSFileChangeLogStoreCommon(final String rootDirectory);

}