smail2133 smail2133 - 5 months ago 52
Android Question

Android ORMLite

I'm using ormlite for android 4.47.
All is good, but sometimes when run application I receive exception with next cause:

you must call initialize() before you can use the dao


In my Application class I'm init ormlite like write in are doc.

DatabaseFactory.setHelper(applicationContext);


What is going on ?
This exception I receive not often. Maybe one in a day.

Full stack:

java.lang.RuntimeException: An error occured while executing doInBackground()
at android.os.AsyncTask$3.done(AsyncTask.java:300)
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:355)
at java.util.concurrent.FutureTask.setException(FutureTask.java:222)
at java.util.concurrent.FutureTask.run(FutureTask.java:242)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:841)
Caused by: java.lang.IllegalStateException: you must call initialize() before you can use the dao
at com.j256.ormlite.dao.BaseDaoImpl.checkForInitialized(BaseDaoImpl.java:925)
at com.j256.ormlite.dao.BaseDaoImpl.queryBuilder(BaseDaoImpl.java:247)
at com.j256.ormlite.dao.BaseForeignCollection.getPreparedQuery(BaseForeignCollection.java:174)
at com.j256.ormlite.dao.EagerForeignCollection.<init>(EagerForeignCollection.java:38)
at com.j256.ormlite.field.FieldType.buildForeignCollection(FieldType.java:784)
at com.j256.ormlite.stmt.mapped.BaseMappedQuery.mapRow(BaseMappedQuery.java:82)
at com.j256.ormlite.stmt.SelectIterator.getCurrent(SelectIterator.java:270)
at com.j256.ormlite.stmt.SelectIterator.nextThrow(SelectIterator.java:161)
at com.j256.ormlite.stmt.StatementExecutor.query(StatementExecutor.java:200)
at com.j256.ormlite.stmt.StatementExecutor.queryForAll(StatementExecutor.java:118)
at com.j256.ormlite.dao.BaseDaoImpl.queryForAll(BaseDaoImpl.java:239)
at com.ls.dailysteals.core.database.dao.HeistDAO.getAllHeist(HeistDAO.java:31)
at com.ls.dailysteals.ui.fragment.HeistFragment$1.doInBackground(HeistFragment.java:92)
at com.ls.dailysteals.ui.fragment.HeistFragment$1.doInBackground(HeistFragment.java:88)
at android.os.AsyncTask$2.call(AsyncTask.java:288)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:841)


Init:

public class DSApplication extends Application {

private static Context applicationContext;

@Override
public void onCreate() {
super.onCreate();
DatabaseFactory.setHelper(applicationContext);
}
}


First call:
Called in fragment lifecyrcle method onViewCreated(...);

databaseTask = new AsyncTask<Object, List<ShortDeal>, List<ShortDeal>>() {

@Override
protected List<ShortDeal> doInBackground(Object... params) {
return DatabaseFactory.getHelper().getShortDealDAO().getAllShortDeal();
}

@Override
protected void onPostExecute(List<ShortDeal> shortDeals) {
super.onPostExecute(shortDeals);
updateAdapter(shortDeals);
}
};

if (Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.HONEYCOMB) {
databaseTask.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
} else {
databaseTask.execute();
}

Answer

I've never used ORMLite, but mt guess this is because your applicationContext is always null, thus it thinks it's not initalized

public class DSApplication extends Application {

    private static Context applicationContext;

    @Override
    public void onCreate() {
        super.onCreate();
        applicationContext = this;
        DatabaseFactory.setHelper(this);
    }
    ....