How to drop collection from database in MongoDB using Mongo DB JAVA driver?

Question

The following commands were typed using mongo.exe client (assuming that the collection coll exists) :

> use database
switched to db database
>db.coll.drop()
True

How to perform db.coll.drop() using Mongo DB JAVA driver?

Answer 1

The current accepted answer would create a collection that did not previously exist and delete it, since getCollection creates one by the given name if it does not exist. It would be more efficient to check for existence first:

MongoClient mongoClient = new MongoClient();
DB db = mongoClient.getDB("mydb");
if (db.collectionExists("myCollection")) {
    DBCollection myCollection = db.getCollection("myCollection");
    myCollection.drop();
}

Answer 2

I think this should work:

MongoClient mongoClient = new MongoClient();
DB db = mongoClient.getDB("mydb");
DBCollection myCollection = db.getCollection("myCollection");
myCollection.drop();