Get ID of last inserted document in a mongoDB w/ Java driver

Question

Is there an easy way to get the ID (ObjectID) of the last inserted document of a mongoDB instance using the Java driver?

Answer 1

Hate to answer my own question, but I just realized you can do this:

BasicDBObject doc = new BasicDBObject( "name", "Matt" );
collection.insert( doc );
ObjectId id = (ObjectId)doc.get( "_id" );

Answer 2

I do not know about the Java driver but for posterity, the getLastError command can be run to get the _id of a write, even an upsert (as of 1.5.4)