MongoDB update using Java 3 driver

Question

I\'m switching to the MongoDB Java driver version 3. I cannot figure out how to perform an update of a Document. For example, I want to change the \"age\" of an user:

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Answer 1

Use:

coll.updateOne(eq("name", "frank"), new Document("$set", new Document("age", 33)));

for updating the first Document found. For multiple updates:

coll.updateMany(eq("name", "frank"), new Document("$set", new Document("age", 33)));

On this link, you can fine a quick reference to MongoDB Java 3 Driver

Answer 2

You can try this

coll.findOneAndReplace(doc1, doc2);

Answer 3

in Mongodb Java driver 3.0 , when you update a document, you can call the coll.replaceOne method to replace document, or call the coll.updateOne / coll.updateMany method to update document(s) by using $set/$setOnInsert/etc operators.

in your case, you can try:

coll.updateOne(eq("name", "frank"), new Document("$set", new Document("age", 33)));
coll.replaceOne(eq("name", "frank"), new Document("age", 33));