KolGeneProvider.java

KolGeneProvider.java

public class KolGeneProvider extends ContentProvider {
  //...
  @Nullable @Override public Uri insert(@NonNull Uri uri, ContentValues values) {
    //open DB for write
    final SQLiteDatabase db = mOpenHelper.getWritableDatabase();
    //match URI to action.
    final int match = sUriMatcher.match(uri);
    Uri returnUri;
    switch (match) {
      //case of creating order.
      case ORDER:
        long _id = db.insertWithOnConflict(KolGeneContract.OrderEntry.TABLE_NAME, null, values,
            SQLiteDatabase.CONFLICT_REPLACE);
        if (_id > 0) {
          returnUri = KolGeneContract.OrderEntry.buildOrderUriWithId(_id);
        } else {
          throw new android.database.SQLException(
              "Failed to insert row into " + uri + " id=" + _id);
        }
        break;
      default:
        throw new UnsupportedOperationException("Unknown uri: " + uri);
    }
    
    //notify observables about the change
    getContext().getContentResolver().notifyChange(uri, null);
    return returnUri;
  }
  //...
}