Using a morphia entity in several db collections in MongoDB

gistfile1.java

/**
I have the need to use one morphia entity in several collections, because I use mongodb as a queue

The only solution I have found so far is to create a custom datastore, which maps to a certain db collection. This was my try: In case there is a cleaner solution, feel free to drop me a note

Datastore importDatastore = new CustomDatastore(Product.class, mongo, morphia, "import");
Datastore exportDatastore = new CustomDatastore(Product.class, mongo, morphia, "export");

ProductDao importQueueDao = new ProductDao(Product.class, importDatastore);
ProductDao exportQueueDao = new ProductDao(Product.class, exportDatastore);
*/
   public class CustomDatastore extends DatastoreImpl {

        private Class<Product> clazz;
        private String dbCollection;

        public CustomDatastore(Class<Product> clazz, Mongo mongo, Morphia morphia, String dbCollection) {
            super(morphia, mongo, "ludr");
            this.clazz = clazz;
            this.dbCollection = dbCollection;
        }

        @SuppressWarnings("rawtypes")
        @Override
        public DBCollection getCollection(Class clazz) {
            String collName = this.clazz.equals(clazz) ? dbCollection : mapr.getCollectionName(clazz);
            DBCollection dbC = getDB().getCollection(collName);
            return dbC;
        }
    }