question: public final int storeSession ( final Session session , final boolean invalidateActive ) { if ( session == null ) { Log . e ( TAG , "Error storing session: Session is null" ) ; return 0 ; } if ( invalidateActive ) { invalidateActiveSessions ( ) ; } final Cursor cursor = contentResolver . query ( ContentUris . withAppendedId ( ContentProvider . CONTENT_URI_SESSION , session . getId ( ) ) , null , null , null , null ) ; if ( ! cursor . moveToNext ( ) ) { storeSession ( session ) ; cursor . close ( ) ; return 1 ; } else { Log . d ( TAG , "Updating existing session " + session . getId ( ) ) ; final ContentValues values = new ContentValues ( ) ; values . put ( Schema . COL_CREATED_AT , session . getCreatedAt ( ) ) ; values . put ( Schema . COL_LAST_UPDATED , session . getLastUpdated ( ) ) ; values . put ( Schema . COL_DESCRIPTION , session . getDescription ( ) ) ; values . put ( Schema . COL_HAS_BEEN_EXPORTED , session . hasBeenExported ( ) ) ; values . put ( Schema . COL_IS_ACTIVE , session . isActive ( ) ) ; values . put ( Schema . COL_NUMBER_OF_CELLS , session . getCellsCount ( ) ) ; values . put ( Schema . COL_NUMBER_OF_WIFIS , session . getWifisCount ( ) ) ; values . put ( Schema . COL_NUMBER_OF_WAYPOINTS , session . getWaypointsCount ( ) ) ; cursor . close ( ) ; return contentResolver . update ( ContentProvider . CONTENT_URI_SESSION , values , Schema . COL_ID + " = ?" , new String [ ] { String . valueOf ( session . getId ( ) ) } ) ; } }
target:  Persists given session in database. If session already exists, session is updated, otherwise new session is created