MongoDB Java API - whats the equivalent for db.collection.remove()?

Question

As explained here, db.bios.remove() deletes all the documents from the bios collection of currently connected DB. What is the equivalent method for this functionality in MongoDB Java API?

I did not find any methods like DB.removeCollection(..) or DBCollection.removeAll(). Please help me.

I cannot add a link only answer so here: api.mongodb.org/java/current/com/mongodb/… — Neil Lunn
– Neil Lunn, Commented Mar 18, 2014 at 12:35
have you looked here api.mongodb.org/java/2.5/com/mongodb/…, com.mongodb.WriteConcern) ? — Flot2011
– Flot2011, Commented Mar 18, 2014 at 12:36
I am aware of DBCollection.remove(DBObject) method, but I dont know how to use it to remove all — sanbhat
– sanbhat, Commented Mar 18, 2014 at 12:39

Philipp · Accepted Answer · 2014-03-18 17:17:28Z

1

You can do that by simply calling the remove method with an empty object.

yourDBCollection.remove(new BasicDBObject());

The equivalent Mongo shell command would be db.bios.remove({});

Remember that MongoDB query objects work like filters: They let anything through which doesn't explicitely violates them.

edited Mar 18, 2014 at 17:17

answered Mar 18, 2014 at 12:35

Philipp

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