František Jeřábek :
Hi I need to convert Mongo Document to DBObject (BasicDBObject).
I am uploading a file to mongo using GridFS and I want to set metadata, which I get in document. I know Document is pretty much the same as DBObject. I know I can do something like this:
Document doc = new Document();
BasicDBObject.parse(doc.toJson());
But isn't this needlessly performance heavy?
The gridFS method setMetaData() accepts only DBObject so i have to convert it.
Is there a better way of doing that rather then converting it to string and back ?
Luciano van der Veekens :
You are kind of micro-optimizing here.
However, since both classes are implementations of Map, you can just do:
Document document = new Document();
BasicDBObject basicDBObject = new BasicDBObject(document);
Internally this does a Map#putAll operation that puts all entries of the Document map into the BasicDbObject map.
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