morphia: Reference error

After switching to 2.0 i encountered a problem with references. Getting this error: java.lang.IllegalStateException: unknown type for bson mapping: class com.mongodb.DBRef at dev.morphia.mapping.codec.reader.DocumentReader.getBsonType(DocumentReader.java:347)

I checked the DB and the previous version of morphia would map reference with something like this:

            "mediaItem" : {
                "$ref" : "MediaItem",
                "$id" : {
                    "className" : "some UID type of class",
                    "uuid" : "xxxxxxxxxxxxxxxxxxx"
                }
            }

and now when testing dummy class with the same type reference I get following in DB:

    "mediaItem" : {x
        "uuid" : "xxxxxxxxxxxxxxxxxxx"
    }

Was there a change how @Reference annotation is handled/saved?

About this issue

Original URL
State: closed
Created 4 years ago
Comments: 28 (16 by maintainers)

Commits related to this issue

forward port fix from #1500 fixes #1551 — committed to MorphiaOrg/morphia by evanchooly 3 years ago

Most upvoted comments

Open a new issue please and I’ll try to take a look over the weekend. Thanks.

evanchooly on Jan 8, 2021

@evanchooly No need. I was able to go back through my code and found where the error was. Happy to report this works both for morphia 2.1.3 and 2.1.4-SNAPSHOT.

Thank you.

iAmcR on Jan 7, 2021

Hi, I tested both the test repo and our own project. The issue looks fixed in the test repo. In our own project we are still getting: Exception in thread “main” java.lang.IllegalStateException: unknown type for bson mapping: class com.mongodb.DBRef

dkulesevic on Jan 5, 2021