How to RegisterClassMap for all classes in a namespace for MongoDb?

Question

The MongoDB driver tutorial suggests to register class maps to automap via

BsonClassMap.RegisterClassMap<MyClass>();

I would like to automap all classes of a given namespace without explicitly writing down RegisterClassMap for each class. Is this currently possible?

Answer 1

You don't need write BsonClassMap.RegisterClassMap<MyClass>();, because all classes will be automapped by default.

You should use RegisterClassMap when you need custom serialization:

 BsonClassMap.RegisterClassMap<MyClass>(cm => {
        cm.AutoMap();
        cm.SetIdMember(cm.GetMemberMap(c => c.SomeProperty));
    });

Also you can use attributes to create manage serialization(it's looks like more native for me):

[BsonId] // mark property as _id
[BsonElement("SomeAnotherName", Order = 1)] //set property name , order
[BsonIgnoreExtraElements] // ignore extra elements during deserialization
[BsonIgnore] // ignore property on insert

Also you can create global rules thats used during automapping, like this one:

var myConventions = new ConventionProfile();
myConventions.SetIdMemberConvention(new NoDefaultPropertyIdConvention());
BsonClassMap.RegisterConventions(myConventions, t => true);

I am using only attributes and conventions to manage serialization process.

Hope this help.