Javaを使用してMongoDBコレクション内の複数のドキュメントを更新するにはどうすればよいですか？

db.COLLECTION_NAME.update(<filter>, <update>)

Javaでは、com.mongodb.client.MongoCollectionインターフェースが同じ名前のメソッドを提供します。このメソッドを使用すると、コレクション内の複数のドキュメントを一度に更新できます。このメソッドには、更新用のフィルターと値を渡す必要があります。

例

import com.mongodb.client.FindIterable;
import com.mongodb.client.MongoCollection;
import com.mongodb.client.MongoDatabase;
import com.mongodb.client.model.Filters;
import com.mongodb.client.model.Updates;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.bson.Document;
import org.bson.conversions.Bson;
import com.mongodb.MongoClient;
public class UpdatingMultipleDocuments {
   public static void main( String args[] ) {
      // Creating a Mongo client
      MongoClient mongo = new MongoClient( "localhost" , 27017 );
      //Connecting to the database
      MongoDatabase database = mongo.getDatabase("myDatabase");
      //Creating a collection object
      MongoCollection<Document>collection =
      database.getCollection("myCollection");
      //Preparing documents
      Document document1 = new Document("name", "Ram").append("age", 26).append("city", "Hyderabad");
      Document document2 = new Document("name", "Robert").append("age", 27).append("city", "Delhi");
      Document document3 = new Document("name", "Rahim").append("age", 30).append("city", "Delhi");
      //Inserting the created documents
      List<Document> list = new ArrayList<Document>();
      list.add(document1);
      list.add(document2);
      list.add(document3);
      collection.insertMany(list);
      System.out.println("List of the documents: ");
      FindIterable<Document> iterDoc = collection.find();
      Iterator it = iterDoc.iterator();
      while (it.hasNext()) {
         System.out.println(it.next());
      }
      //Updating multiple documents
      Bson filter = new Document("city", "Delhi");
      Bson newValue = new Document("city", "Vijayawada");
      Bson updateOperationDocument = new Document("$set", newValue);
      collection.updateMany(filter, updateOperationDocument);
      System.out.println("Document update successfully...");
      System.out.println("List of the documents after update");
      iterDoc = collection.find();
      it = iterDoc.iterator();
      while (it.hasNext()) {
         System.out.println(it.next());
      }
   }
}

出力

List of the documents:
Document{{_id=5e88a61fe7a0124a4fc51b2c, name=Ram, age=26, city=Hyderabad}}
Document{{_id=5e88a61fe7a0124a4fc51b2d, name=Robert, age=27, city=Delhi}}
Document{{_id=5e88a61fe7a0124a4fc51b2e, name=Rahim, age=30, city=Delhi}}
Document update successfully...
List of the documents after update
Document{{_id=5e88a61fe7a0124a4fc51b2c, name=Ram, age=26, city=Hyderabad}}
Document{{_id=5e88a61fe7a0124a4fc51b2d, name=Robert, age=27, city=Vijayawada}}
Document{{_id=5e88a61fe7a0124a4fc51b2e, name=Rahim, age=30, city=Vijayawada}}