Android 房间更新查询卡在自动生成的代码上

Question

在使用 Android Room 几周并掌握了基本查询之后，我运行遇到了尝试更新自定义对象列表的问题。出于某种原因，当 Room 尝试创建 SQLLite 字符串以插入我的新数据时，它会卡在占位符中：从调试 window:

Caused by: android.database.sqlite.SQLiteException: near "?": syntax error (code 1): , while compiling: UPDATE player_characters SET ability_scores = ?,?,?,?,?,? WHERE playerCharacterID = ? ################################################################# Error Code : 1 (SQLITE_ERROR) Caused By : SQL(query) error or missing database. (near "?": syntax error (code 1): , while compiling: UPDATE player_characters SET ability_scores = ?,?,?,?,?,? WHERE playerCharacterID = ?) ################################################################# at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method) at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:1005) at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:570) at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588) at android.database.sqlite.SQLiteProgram.(SQLiteProgram.java:59) at android.database.sqlite.SQLiteStatement.(SQLiteStatement.java:31) at android.database.sqlite.SQLiteDatabase.compileStatement(SQLiteDatabase.java:1375) at android.arch.persistence.db.framework.FrameworkSQLiteDatabase.compileStatement(FrameworkSQLiteDatabase.java:62) at android.arch.persistence.room.RoomDatabase.compileStatement(RoomDatabase.java:204) at com.pathfinderstattracker.pathfindercharactersheet.database.database_daos.PlayerCharacterDao_Impl.updatePlayerCharacterAbilityScores(PlayerCharacterDao_Impl.java:321)

包含查询的 DAO：

@Dao
@TypeConverters({UUIDConverter.class,
                 AbilityScoreConcreteConverter.class})
public interface PlayerCharacterDao
{       
    @Query("UPDATE player_characters "+
           "SET ability_scores = :playerCharacterAbilityScores "+
           "WHERE playerCharacterID = :characterIDToUpdate")
    void updatePlayerCharacterAbilityScores(UUID characterIDToUpdate, List<AbilityScore> playerCharacterAbilityScores);
}

以及调用它的存储库命令：

private static class updatePlayerCharacterAbilityScoresAsyncTask extends AsyncTask<Object, Void, Void>
{
    private PlayerCharacterDao asyncPlayerCharacterDao;
    updatePlayerCharacterAbilityScoresAsyncTask(PlayerCharacterDao dao) {asyncPlayerCharacterDao = dao;}
    @Override
    protected Void doInBackground(final Object... params)
    {
        UUID playerCharacterID = (UUID)params[0];
        List<AbilityScore> updatedAbilityScores = (ArrayList<AbilityScore>)params[1];
        asyncPlayerCharacterDao.updatePlayerCharacterAbilityScores(playerCharacterID, updatedAbilityScores);
        return null;
    }
}

我可以确认数据正在正确地到达房间查询，我已经尝试将具体对象和接口对象传递到查询中，并且有一个用于单个 AbilityScore 对象和 AbilityScore 列表的转换器对象。任何帮助将不胜感激！

编辑：一些人请求了正在更新的实体：

@Entity(tableName = "player_characters")
@TypeConverters({AlignmentEnumConverter.class,
                 HitPointsConverter.class,
                 DamageReductionConverter.class,
                 StringListConverter.class,
                 UUIDConverter.class,
                 StringListConverter.class,
                 AbilityScoreListConverter.class,
                 CombatManeuverConverter.class})
public class PlayerCharacterEntity
{
    @PrimaryKey
    @NonNull
    private UUID playerCharacterID;
    @ColumnInfo(name="character_name")
    private String playerCharacterName;
    @ColumnInfo(name="character_level")
    private int characterLevel;
    @ColumnInfo(name="concentration_check")
    private int concentrationCheck;
    @ColumnInfo(name="character_alignment")
    private AlignmentEnum characterAlignment;
    @ColumnInfo(name="total_base_attack_bonus")
    private int totalBaseAttackBonus;
    @ColumnInfo(name="total_hit_points")
    private IHitPoints totalHitPoints;
    @ColumnInfo(name="total_ac")
    private int totalAC;
    @ColumnInfo(name="damage_reduction")
    private IDamageReduction damageReduction;
    @ColumnInfo(name="languages_known")
    private List<String> languagesKnown;
    @ColumnInfo(name="ability_scores")
    private List<IAbilityScore> abilityScores;
    @ColumnInfo(name="combat_Maneuver_stats")
    private ICombatManeuver combatManeuverStats;
    @ColumnInfo(name="spell_resistance")
    private int spellResistance;
    @ColumnInfo(name="initiative")
    private int initiative;
    @ColumnInfo(name="fortitude_save")
    private int fortitudeSave;
    @ColumnInfo(name="reflex_save")
    private int reflexSave;
    @ColumnInfo(name="will_save")
    private int willSave;

    ~Getters/Setters and Constructors removed for brevity~
}

编辑： 为了更好的衡量，我想我会为 AbilityScore 包含 @TypeConverter（我已经将其恢复为使用接口而不是具体的早期形式，因为那在代码的其他地方工作，差异似乎没有改变任何东西）：

public class AbilityScoreConverter
{
    @TypeConverter
    public IAbilityScore fromString(String value)
    {
        IAbilityScore formattedAbilityScore = new AbilityScore();
        String[] tokens = value.split(" ");
        formattedAbilityScore.setAmount(Integer.parseInt(tokens[0]));
        switch(tokens[1])
        {
            case "STR":
                formattedAbilityScore.setStat(AbilityScoreEnum.STR);
            case "DEX":
                formattedAbilityScore.setStat(AbilityScoreEnum.DEX);
            case "CON":
                formattedAbilityScore.setStat(AbilityScoreEnum.CON);
            case "INT":
                formattedAbilityScore.setStat(AbilityScoreEnum.INT);
            case "WIS":
                formattedAbilityScore.setStat(AbilityScoreEnum.WIS);
            case "CHA":
                formattedAbilityScore.setStat(AbilityScoreEnum.CHA);
            default:
                //This may cause issues down the line if a non existent enum gets in the db somehow, but we don't have any error handling yet
                //Todo: Add error handling
                formattedAbilityScore.setStat(AbilityScoreEnum.STR);
        }

        return formattedAbilityScore;
    }

    @TypeConverter
    public String toString(IAbilityScore value)
    {
        return value.toString();
    }
}

编辑： 我已经清理了 logcat 文本，只关注 Room/SQLLite 问题。

Answer 1

经过一番搜索，不幸的是，我被迫放弃使用@Query 命令更新我的数据库，而不得不转而使用 Rooms 默认的 @Update 表示法。虽然这确实有效并正确更新了数据库中的数据，但它不允许我只更新某些字段。

Answer 2

在 UPDATE 查询中使用 ArrayList 而不是 List 对我有用。

我关注了。

Impl 构建的差异：

可变列表：

@Override
  public void test(int tkID, List<Boolean> test) {
    StringBuilder _stringBuilder = StringUtil.newStringBuilder();
    _stringBuilder.append("UPDATE TasksTable SET test = ");
    final int _inputSize = test.size();
    StringUtil.appendPlaceholders(_stringBuilder, _inputSize);
    _stringBuilder.append(" WHERE taskID = ");
    _stringBuilder.append("?");
    final String _sql = _stringBuilder.toString();
    SupportSQLiteStatement _stmt = __db.compileStatement(_sql);

数组列表：

@Override
  public void test(int tkID, ArrayList<Boolean> test) {
    final SupportSQLiteStatement _stmt = __preparedStmtOfTest.acquire();
    __db.beginTransaction();
    try {
      int _argIndex = 1;
      final String _tmp;
      _tmp = Converters.listBooleanToString(test);
      if (_tmp == null) {
        _stmt.bindNull(_argIndex);
      } else {
        _stmt.bindString(_argIndex, _tmp);
      }
      _argIndex = 2;
      _stmt.bindLong(_argIndex, tkID);
      _stmt.executeUpdateDelete();
      __db.setTransactionSuccessful();
    } finally {
      __db.endTransaction();
      __preparedStmtOfTest.release(_stmt);
    }
  }

如您所见，ArrayList 使用了转换器，而 MutableList 没有。

Android 房间更新查询卡在自动生成的代码上

Android Room update query getting stuck on auto generated code

android

android-room