英文:
Is there a findAndModify that returns many documents in MongoDb Morphia
问题
我正在使用MongoDb Morphia for Java，我想要使用一条命令悲观锁定多个文档。我熟悉findAndModify方法，它可以找到并更新一个文档。是否有一种方法可以用于多个文档？
英文:
I am using MongoDb Morphia for Java and I want to pessimistically lock many documents with one command. I am familiar with the findAndModify method, which will find and update one document. Is there a method that will do the same for multiple documents?
答案1
得分: 1
findAndModify() 只适用于由服务器行为定义的单个文档。如果您希望在一个全有或全无的块中更新多个文档，您可以考虑使用 transaction。
英文:
findAndModify() only works with a single document as defined by the server's behavior. If you're wanting to update multiple documents in one all-or-nothing block, you might consider using a transaction.
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