대량 쓰기 작업

// Runs bulk write operations on a collection by using the Java driver
package org.example;
import java.util.Arrays;
import org.bson.Document;
import com.mongodb.MongoException;
import com.mongodb.bulk.BulkWriteResult;
import com.mongodb.client.MongoClient;
import com.mongodb.client.MongoClients;
import com.mongodb.client.MongoCollection;
import com.mongodb.client.MongoDatabase;
import com.mongodb.client.model.DeleteOneModel;
import com.mongodb.client.model.InsertOneModel;
import com.mongodb.client.model.ReplaceOneModel;
import com.mongodb.client.model.UpdateOneModel;
import com.mongodb.client.model.UpdateOptions;
public class BulkWrite {
    public static void main(String[] args) {
        // Replace the uri string with your MongoDB deployment's connection string
        String uri = "<connection string uri>";
        try (MongoClient mongoClient = MongoClients.create(uri)) {
            MongoDatabase database = mongoClient.getDatabase("sample_mflix");
            MongoCollection<Document> collection = database.getCollection("movies");
            // Runs a bulk write operation for the specified insert, update, delete, and replace operations
            BulkWriteResult result = collection.bulkWrite(
                    Arrays.asList(
                            new InsertOneModel<>(new Document("name", "A Sample Movie")),
                            new InsertOneModel<>(new Document("name", "Another Sample Movie")),
                            new InsertOneModel<>(new Document("name", "Yet Another Sample Movie")),
                            new UpdateOneModel<>(new Document("name", "A Sample Movie"),
                                    new Document("$set", new Document("name", "An Old Sample Movie")),
                                    new UpdateOptions().upsert(true)),
                            new DeleteOneModel<>(new Document("name", "Yet Another Sample Movie")),
                            new ReplaceOneModel<>(new Document("name", "Yet Another Sample Movie"),
                                    new Document("name", "The Other Sample Movie").append("runtime",  "42"))
                            ));
            // Prints the number of inserted, updated, and deleted documents
            System.out.println("Result statistics:" +
                    "\ninserted: " + result.getInsertedCount() +
                    "\nupdated: " + result.getModifiedCount() +
                    "\ndeleted: " + result.getDeletedCount());
        }
    }
}