ORMLite la valeur de liaison à l'index 1 est nulle

Question

J'essaye d'ajouter des objets à ForeignCollection dans la classe LyricsInfo, mais malheureusement j'obtiens l'erreur: "la valeur de liaison à l'index 1 est null". Des idées? J'ai déjà lu que le selectionArg argument d'une requête peut provoquer cette exception.

03-10 14:07:35.545: W/System.err(26781): java.lang.IllegalStateException: Could not build lazy iterator for class com.ep45.db.Lyric 
03-10 14:07:35.545: W/System.err(26781): at com.j256.ormlite.dao.LazyForeignCollection$1.closeableIterator(LazyForeignCollection.java:88) 
03-10 14:07:35.545: W/System.err(26781): at com.j256.ormlite.dao.CloseableWrappedIterableImpl.closeableIterator(CloseableWrappedIterableImpl.java:32) 
03-10 14:07:35.545: W/System.err(26781): at com.j256.ormlite.dao.CloseableWrappedIterableImpl.iterator(CloseableWrappedIterableImpl.java:22) 
03-10 14:07:35.545: W/System.err(26781): at com.j256.ormlite.dao.CloseableWrappedIterableImpl.iterator(CloseableWrappedIterableImpl.java:12) 
03-10 14:07:35.545: W/System.err(26781): at com.ep45.db.LyricsInfo.getLyrics(LyricsInfo.java:34) 
03-10 14:07:35.545: W/System.err(26781): at com.ep45.db.LyricsInfo.<init>(LyricsInfo.java:82) 
03-10 14:07:35.545: W/System.err(26781): at com.ep45.audio.AudioHelper.getSongInfo(AudioHelper.java:228) 
03-10 14:07:35.545: W/System.err(26781): at com.ep45.activities.MainscreenActivity.loadNewSongs(MainscreenActivity.java:287) 
03-10 14:07:35.545: W/System.err(26781): at com.ep45.activities.MainscreenActivity_.access$5(MainscreenActivity_.java:1) 
03-10 14:07:35.545: W/System.err(26781): at com.ep45.activities.MainscreenActivity_$12.run(MainscreenActivity_.java:363) 
03-10 14:07:35.550: W/System.err(26781): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076) 
03-10 14:07:35.550: W/System.err(26781): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569) 
03-10 14:07:35.550: W/System.err(26781): at java.lang.Thread.run(Thread.java:856) 
03-10 14:07:35.550: W/System.err(26781): Caused by: java.lang.IllegalArgumentException: the bind value at index 1 is null 
03-10 14:07:35.550: W/System.err(26781): at android.database.sqlite.SQLiteProgram.bindString(SQLiteProgram.java:297) 
03-10 14:07:35.550: W/System.err(26781): at android.database.sqlite.SQLiteProgram.bindAllArgsAsStrings(SQLiteProgram.java:401) 
03-10 14:07:35.550: W/System.err(26781): at android.database.sqlite.SQLiteQuery.<init>(SQLiteQuery.java:55) 
03-10 14:07:35.555: W/System.err(26781): at android.database.sqlite.SQLiteDirectCursorDriver.query(SQLiteDirectCursorDriver.java:47) 
03-10 14:07:35.555: W/System.err(26781): at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1693) 
03-10 14:07:35.555: W/System.err(26781): at android.database.sqlite.SQLiteDatabase.rawQuery(SQLiteDatabase.java:1667) 
03-10 14:07:35.555: W/System.err(26781): at com.j256.ormlite.android.AndroidCompiledStatement.getCursor(AndroidCompiledStatement.java:162) 
03-10 14:07:35.555: W/System.err(26781): at com.j256.ormlite.android.AndroidCompiledStatement.runQuery(AndroidCompiledStatement.java:57) 
03-10 14:07:35.555: W/System.err(26781): at com.j256.ormlite.stmt.SelectIterator.<init>(SelectIterator.java:55) 
03-10 14:07:35.555: W/System.err(26781): at com.j256.ormlite.stmt.StatementExecutor.buildIterator(StatementExecutor.java:232) 
03-10 14:07:35.555: W/System.err(26781): at com.j256.ormlite.dao.BaseDaoImpl.createIterator(BaseDaoImpl.java:952) 
03-10 14:07:35.555: W/System.err(26781): at com.j256.ormlite.dao.BaseDaoImpl.iterator(BaseDaoImpl.java:531) 
03-10 14:07:35.555: W/System.err(26781): at com.j256.ormlite.dao.BaseDaoImpl.iterator(BaseDaoImpl.java:526) 
03-10 14:07:35.560: W/System.err(26781): at com.j256.ormlite.dao.LazyForeignCollection.seperateIteratorThrow(LazyForeignCollection.java:75) 
03-10 14:07:35.565: W/System.err(26781): at com.j256.ormlite.dao.LazyForeignCollection$1.closeableIterator(LazyForeignCollection.java:86) 
03-10 14:07:35.565: W/System.err(26781): ... 12 more 

LyricsInfo.java

public class LyricsInfo { 
@DatabaseField(generatedId=true) @Getter @Setter private int id; 
@ForeignCollectionField @Setter private ForeignCollection<Lyric> lyrics; 
... 

public List<Lyric> getLyrics() { 
    ArrayList<Lyric> itemList = new ArrayList<Lyric>(); 
    CloseableWrappedIterable<Lyric> it = lyrics.getWrappedIterable(); 
    try { 
     for(Lyric lyric: it) 
      itemList.add(lyric); 
    } finally { 
     try { 
      it.close(); 
     } catch (SQLException e) { 
      e.printStackTrace(); 
     } 
    } 

    return itemList; 
} 

public LyricsInfo(List<String> theLyrics) { 
    try { 

     if(lyrics == null) 
      lyrics = DatabaseManager.getInstance().getHelper().getDao(DatabaseHelper.LYRICSINFO).getEmptyForeignCollection("lyrics"); 
    } catch (SQLException e) { 
     Log.e("Test","Exception occured"); 
     e.printStackTrace(); 
    } 
    ... 
    lyrics.add(...); 
    ... 

} 

} 

Lyric.java

@DatabaseTable 
@RequiredArgsConstructor() 
@NoArgsConstructor() 
public class Lyric { 
    @DatabaseField(generatedId=true) @Getter @Setter private int id; 
    @DatabaseField(canBeNull=true) @NonNull @Getter @Setter private int time; 
    @DatabaseField(canBeNull=true) @NonNull @Getter @Setter private String text; 
    @DatabaseField(foreign=true,foreignAutoRefresh=true) @Getter @Setter private LyricsInfo lyricsInfo; 


    public void appendText(String text) { 
     this.text += text; 
    } 
} 

Answer 1

Si vous lisez l'une de ces deux réponses:

• Bind value at index 1 is null in query?
• IllegalArgumentException: the bind value at index 1 is null

ils semblent dire que SQLite est de lancer l'exception parce que l'un des champs qu'il tente de itérer à travers est null. Il pourrait être:

@DatabaseField(canBeNull=true) @NonNull @Getter @Setter private int time; 

Peut-être que cela devrait être un Integer? Je devine juste cependant. Si vous affichez les lignes de données à l'origine de ce problème, nous pouvons vous fournir une aide plus spécifique.