java.lang.IllegalStateException: Не удалось прочитать строку 0, col -1 из CursorWindow - проблема с sqlite Android.

Question

Я пытаюсь извлечь два значения из таблицы в sqlite db в android. Я получаю следующее исключение:

05-22 04:13:05.432: I/ActivityManager(251): app/com.nykkos.personalize[INITIAL] app.idle/false 
05-22 04:13:05.432: I/ActivityManager(251): START {cmp=com.nykkos.personalize/.screens.PackageInstaller} from pid 1613 
05-22 04:13:05.463: W/audio_hw_primary(134): select_output_device e=0, h=0, s=2, b=0 
05-22 04:13:05.502: I/ActivityManager(251): app/com.nykkos.personalize[RESUMED] app.idle/false ...realStartActivityLocked 
05-22 04:13:05.526: E/SQLiteCursor(1613): requesting column name with table name -- /mnt/sdcard/googleCheckout/Saxo Trader.apk 
05-22 04:13:05.526: E/SQLiteCursor(1613): java.lang.Exception 
05-22 04:13:05.526: E/SQLiteCursor(1613): at android.database.sqlite.SQLiteCursor.getColumnIndex(SQLiteCursor.java:192) 
05-22 04:13:05.526: E/SQLiteCursor(1613): at com.nykkos.personalize.db.SQLiteDBHelper.GetSelectedApplicationUrlList(SQLiteDBHelper.java:263) 
05-22 04:13:05.526: E/SQLiteCursor(1613): at com.nykkos.personalize.screens.PackageInstaller.onCreate(PackageInstaller.java:42) 
05-22 04:13:05.526: E/SQLiteCursor(1613): at android.app.Activity.performCreate(Activity.java:4465) 
05-22 04:13:05.526: E/SQLiteCursor(1613): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049) 
05-22 04:13:05.526: E/SQLiteCursor(1613): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1928) 
05-22 04:13:05.526: E/SQLiteCursor(1613): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1989) 
05-22 04:13:05.526: E/SQLiteCursor(1613): at android.app.ActivityThread.access$600(ActivityThread.java:125) 
05-22 04:13:05.526: E/SQLiteCursor(1613): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1149) 
05-22 04:13:05.526: E/SQLiteCursor(1613): at android.os.Handler.dispatchMessage(Handler.java:99) 
05-22 04:13:05.526: E/SQLiteCursor(1613): at android.os.Looper.loop(Looper.java:137) 
05-22 04:13:05.526: E/SQLiteCursor(1613): at android.app.ActivityThread.main(ActivityThread.java:4368) 
05-22 04:13:05.526: E/SQLiteCursor(1613): at java.lang.reflect.Method.invokeNative(Native Method) 
05-22 04:13:05.526: E/SQLiteCursor(1613): at java.lang.reflect.Method.invoke(Method.java:511) 
05-22 04:13:05.526: E/SQLiteCursor(1613): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784) 
05-22 04:13:05.526: E/SQLiteCursor(1613): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551) 
05-22 04:13:05.526: E/SQLiteCursor(1613): at dalvik.system.NativeStart.main(Native Method) 
05-22 04:13:05.526: E/CursorWindow(1613): Failed to read row 0, column -1 from a CursorWindow which has 3 rows, 2 columns. 
05-22 04:13:05.526: D/AndroidRuntime(1613): Shutting down VM 
05-22 04:13:05.526: W/dalvikvm(1613): threadid=1: thread exiting with uncaught exception (group=0x40b0a1f8) 
05-22 04:13:05.526: E/AndroidRuntime(1613): FATAL EXCEPTION: main 
05-22 04:13:05.526: E/AndroidRuntime(1613): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.nykkos.personalize/com.nykkos.personalize.screens.PackageInstaller}: java.lang.IllegalStateException: Couldn't read row 0, col -1 from CursorWindow. Make sure the Cursor is initialized correctly before accessing data from it. 
05-22 04:13:05.526: E/AndroidRuntime(1613):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1964) 
05-22 04:13:05.526: E/AndroidRuntime(1613):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1989) 
05-22 04:13:05.526: E/AndroidRuntime(1613):  at android.app.ActivityThread.access$600(ActivityThread.java:125) 
05-22 04:13:05.526: E/AndroidRuntime(1613):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1149) 
05-22 04:13:05.526: E/AndroidRuntime(1613):  at android.os.Handler.dispatchMessage(Handler.java:99) 
05-22 04:13:05.526: E/AndroidRuntime(1613):  at android.os.Looper.loop(Looper.java:137) 
05-22 04:13:05.526: E/AndroidRuntime(1613):  at android.app.ActivityThread.main(ActivityThread.java:4368) 
05-22 04:13:05.526: E/AndroidRuntime(1613):  at java.lang.reflect.Method.invokeNative(Native Method) 
05-22 04:13:05.526: E/AndroidRuntime(1613):  at java.lang.reflect.Method.invoke(Method.java:511) 
05-22 04:13:05.526: E/AndroidRuntime(1613):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784) 
05-22 04:13:05.526: E/AndroidRuntime(1613):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551) 
05-22 04:13:05.526: E/AndroidRuntime(1613):  at dalvik.system.NativeStart.main(Native Method) 
05-22 04:13:05.526: E/AndroidRuntime(1613): Caused by: java.lang.IllegalStateException: Couldn't read row 0, col -1 from CursorWindow. Make sure the Cursor is initialized correctly before accessing data from it. 
05-22 04:13:05.526: E/AndroidRuntime(1613):  at android.database.CursorWindow.nativeGetString(Native Method) 
05-22 04:13:05.526: E/AndroidRuntime(1613):  at android.database.CursorWindow.getString(CursorWindow.java:451) 
05-22 04:13:05.526: E/AndroidRuntime(1613):  at android.database.AbstractWindowedCursor.getString(AbstractWindowedCursor.java:51) 
05-22 04:13:05.526: E/AndroidRuntime(1613):  at com.nykkos.personalize.db.SQLiteDBHelper.GetSelectedApplicationUrlList(SQLiteDBHelper.java:263) 
05-22 04:13:05.526: E/AndroidRuntime(1613):  at com.nykkos.personalize.screens.PackageInstaller.onCreate(PackageInstaller.java:42) 
05-22 04:13:05.526: E/AndroidRuntime(1613):  at android.app.Activity.performCreate(Activity.java:4465) 
05-22 04:13:05.526: E/AndroidRuntime(1613):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049) 
05-22 04:13:05.526: E/AndroidRuntime(1613):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1928) 
05-22 04:13:05.526: E/AndroidRuntime(1613):  ... 11 more 
05-22 04:13:05.526: W/ActivityManager(251): Force finishing activity com.nykkos.personalize/.screens.PackageInstaller 
05-22 04:13:05.541: I/WindowManager(251): createSurface Window{42411fd0 paused=false}: DRAW NOW PENDING 
05-22 04:13:06.025: W/ActivityManager(251): Activity pause timeout for ActivityRecord{41c0ee08 com.nykkos.personalize/.screens.PackageInstaller} 
05-22 04:13:06.033: I/ActivityManager(251): app/com.nykkos.personalize[RESUMED] app.idle/true ...resumeTopActivityLocked 

Ниже приведен код я использую:

public Map<String, String> GetSelectedApplicationUrlList() { 

    Cursor c = myDataBase.rawQuery("SELECT reco_index_user_action_download_file ," + 
      " reco_index_content_code from tbl_reco_index_contents where reco_index_content_type =" + 
      " 'Application/Widget' and reco_index_user_action_downloaded=1 and reco_index_user_action_installed =1 ", 
      null); 

    Map<String, String> sel = Collections 
      .synchronizedMap(new LinkedHashMap<String, String>()); 
    if (c != null) { 
     if (c.moveToFirst()) { 
      do { 
       System.out.println("Url is"+c.getString(0)); 
       System.out.println("Code is"+c.getString(1)); 
       String url = c.getString(c.getColumnIndex(c.getString(0))); 
       String code = c.getString(c.getColumnIndex(c.getString(1))); 
       sel.put(code, url); 
      } while (c.moveToNext()); 
     } 

    } 
    c.close(); 
    return sel; 
} 

Исключение выбрасывается из:

System.out.println("Url is"+c.getString(0)); 

Когда я запускаю тот же запрос от sqliteman, он всегда дает правильный результат.

Любая помощь в решении этой проблемы очень ценится

Структура таблицы выглядит следующим образом:

CREATE TABLE tbl_reco_index_contents (
    id           integer PRIMARY KEY, 
    reco_index_content_code     char(10), 
    reco_index_content_type     char(30), 
    reco_index_user_action_downloaded   smallint, 
    reco_index_user_action_download_file  char(50), 
    reco_index_user_action_installed   smallint 
) 

Answer 1

Третья строка является проблемой. См. Выходные данные logcat и Android sources (поиск в источниках для «запроса имени столбца с именем таблицы»). Теперь посмотрим на ваш вывод logcat. Строка с этим предложением содержит имя столбца, которое вы запрашиваете: /mnt/sdcard/googleCheckout/Saxo Trader.apk. Это значение исходит из вашего курсора. Конечно, ваш дб не содержит этого colunm :-)

Заменитель линии

 String url = c.getString(c.getColumnIndex(c.getString(0))); 
    String code = c.getString(c.getColumnIndex(c.getString(1))); 

с

 String url = c.getString(c.getColumnIndex("reco_index_user_action_download_file")); 
    String code = c.getString(c.getColumnIndex("reco_index_content_code")); 

Я также предлагаю, чтобы вытащить код для получения индексов внутри цикла к внешнему контуру. Нет необходимости запрашивать индексы снова и снова.