package Ġcom . scanner . sk an . data Ċ Ċ import Ġandroidx . lifecycle . LiveData Ċ import Ġandroidx . room .* Ċ Ċ @ Dao Ċ interface ĠScanner Dao Ġ{ ĊĊĠĠĠ Ġ@ Insert ( on Conflict Ġ= ĠOn Conflict Strategy . REPLACE ) ĊĠĠĠ Ġsuspend Ġfun Ġadd Sc anned Data ( sc anned Data Ġ: ĠScanner DataModel ) ĊĊĠĠĠ Ġ@ Query (" SELECT Ġ* ĠFROM Ġscanner _ table ĠORDER ĠBY Ġid ĠDESC ") ĊĠĠĠ Ġfun Ġread All Data () Ġ: ĠLive Data < List < Scanner DataModel >> ĊĊĠĠĠ Ġ@ Delete ĊĠĠĠ Ġsuspend Ġfun Ġdelete Item ( sc anned Data : ĠScanner DataModel ) ĊĊĠĠĠ Ġ@ Query (" DELETE ĠFROM Ġscanner _ table ") ĊĠĠĠ Ġsuspend Ġfun Ġdelete All () ĊĊ Ċ }