Morphia：为每个数据库创建新的Morphia实例吗？

Question

In my initialization code right now, I create 1 Morphia instance and use it to map all my classes across all my databases. I've noticed though that when I call ensureIndexes() , it will initialize an empty collection and index all the collections across all databases.

Is the correct pattern for this to instead create 1 Morphia instance per each database and then loop through each instance to ensureIndexes?

Answer 1

您可以使用一个Morphia实例，并为每个数据库创建一个数据存储，只要它们都共享相同的映射信息即可。