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Document Databases : A look at them

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27 May 2012CPOL26 min read 228.2K   700   135  
A look at several Document database, and a look at how to use them
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

using MongoDB.Bson;
using MongoDB.Driver;
using MongoDB.Driver.Linq;


namespace DocumentDB.Mongo
{
    public class MongoRawDocumentDemo
    {
        private MongoServer server;
        private MongoDatabase rawDocumentDemoDB;
        private MongoCollection<BsonDocument> users;

        public MongoRawDocumentDemo(MongoServer server)
        {
            this.server = server;
            rawDocumentDemoDB = server.GetDatabase("rawDocumentDemoDB");
            rawDocumentDemoDB.Drop();
        }

        public void DoInsert()
        {

            StartRequest();
            Insert();
            StopRequest();


        }


        public void DoInsertAndUpdate()
        {
            StartRequest();
            Insert();
            UpDate();
            StopRequest();

        }


        private void UpDate()
        {
            var savedUsers = users.FindAll();
            if (savedUsers.Any())
            {
                BsonDocument userToModify = savedUsers.First();
                if (userToModify != null)
                {
                    Console.WriteLine(string.Format("Decrementing User Id : {0}, Age By -1", userToModify["_id"]));
                    userToModify["age"] = userToModify["age"].AsInt32 - 1;
                    users.Save(userToModify);
                }
            }

            users = rawDocumentDemoDB.GetCollection("users");
            PrintAllUsers(users);
        
        }


        private void Insert()
        {
            users = rawDocumentDemoDB.GetCollection("users");

            // Create BsonDocument object for new user
            var user = new BsonDocument();
            user["firstname"] = "Goat";
            user["lastname"] = "Head";
            user["age"] = 12;
            user["createdate"] = DateTime.Now;

            // Insert new user object to collection
            users.Insert(user);

            users = rawDocumentDemoDB.GetCollection("users");
            PrintAllUsers(users);
        }

        private void StartRequest()
        {
            server.RequestStart(rawDocumentDemoDB);
        }


        private void StopRequest()
        {
            server.RequestDone();
        }




        private void PrintAllUsers(MongoCollection<BsonDocument> users)
        {
            Console.WriteLine(string.Format("There are currently {0} Users", users.Count()));

            var savedUsers = users.FindAll();
            foreach (var savedUser in savedUsers)
            {
                Console.WriteLine(string.Format("ID : {0}, FirstName : {1}, LastName : {2}, Age : {3}, CreatedDate: {4}",
                    savedUser["_id"], savedUser["firstname"].AsString, savedUser["lastname"].AsString,
                    savedUser["age"].AsInt32, savedUser["createdate"].AsDateTime));
            }

        }

    
    }
}

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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


Written By
Software Developer (Senior)
United Kingdom United Kingdom
I currently hold the following qualifications (amongst others, I also studied Music Technology and Electronics, for my sins)

- MSc (Passed with distinctions), in Information Technology for E-Commerce
- BSc Hons (1st class) in Computer Science & Artificial Intelligence

Both of these at Sussex University UK.

Award(s)

I am lucky enough to have won a few awards for Zany Crazy code articles over the years

  • Microsoft C# MVP 2016
  • Codeproject MVP 2016
  • Microsoft C# MVP 2015
  • Codeproject MVP 2015
  • Microsoft C# MVP 2014
  • Codeproject MVP 2014
  • Microsoft C# MVP 2013
  • Codeproject MVP 2013
  • Microsoft C# MVP 2012
  • Codeproject MVP 2012
  • Microsoft C# MVP 2011
  • Codeproject MVP 2011
  • Microsoft C# MVP 2010
  • Codeproject MVP 2010
  • Microsoft C# MVP 2009
  • Codeproject MVP 2009
  • Microsoft C# MVP 2008
  • Codeproject MVP 2008
  • And numerous codeproject awards which you can see over at my blog

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