Android sqlite db将数据加载到服务器并截断

Question

I have written an app that saves some data in sqlite db. Periodically I want to send this data to server and then truncate the tables in sqlite (so that the app does not fill up the space on device).

I am using singleton object of SQLiteOpenHelper (which I have read is thread safe).

So my question is - does the following code looks ok-

SQLiteOpenHelper openHelper = MyDBOpenHelper.getInsance();
SQLiteDatabase database = openHelper.getWritableDatabase();
database.beginTransaction();
Cursor cursor = database.rawQuery(SELECT_ALL_TABLE1_STMT, null);

while( cursor.moveToNext()) {
  // save result in tmp list/buffer
}

database.execSQL(DELETE_ALL_TABLE1_STMT);
database.endTransaction();
database.setTransactionSuccessful();

// send data to server
// and repeat the process for rest of the tables.

If there is another thread that is trying to write to the same table (that I am reading and later will truncate), then does the above code looks ok to handle that scenario?

thanks!

Answer 1

You need more input on this from here:

• Synchronized Methods
• Android Multi-threading

Plus AsyncTask, of course.