OrmliteBaseActivity

public abstract class BaseActivity extends SherlockFragmentActivity{
    private OrmliteDatabaseHelper databaseHelper;


    public OrmliteDatabaseHelper getDatabaseHelper() {
        if (databaseHelper == null) {
            databaseHelper = OpenHelperManager.getHelper(this, OrmliteDatabaseHelper.class);
        }

        return databaseHelper;
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        releaseDatabaseHelper();
    }

    /**
     * Release database helper.
     */
    public void releaseDatabaseHelper() {
        if (databaseHelper != null) {
            OpenHelperManager.releaseHelper();
            databaseHelper = null;
        }
    }
}