Comments (4)
I think the best regarding connection to db in MongoDB world is you keep your connection opened during the life of application. MongoDB driver handles the connection internally so even if you open 100s it'll keep a pool of fixed connections and return you the same. Also if you keep your connection open, the driver will immediately warn you when one server goes off and will then shifts to you next secondary server.
Since MongoDB doesn't support transactions, so the UnitOfWork pattern has of no use.
from mongorepository.
That's my point, the MongoRepository constructors take a connection string as a parameter, so I have assumed that a new connection is made every time a MongoRepository is created so...
void DoStuff(){
var repo = new MongoRepository();
repo.Add(newitem);
};
would create a new connection each time the method was invoked.
Can't a Datcontext contain the connection?
Ok about UnitOfWork, I did not know that transactions where not supported.
from mongorepository.
would create a new connection each time the method was invoked.
It doesn't; MongoDB's C# driver (which we use) handles this internally and simply uses a connectionpool.
This class serves as the root object for working with a MongoDB server. The connections to the server are handled automatically behind the scenes (a connection pool is used to increase efficiency).
I did not know that transactions where not supported
From https://docs.mongodb.org/v3.0/core/write-operations-atomicity/ :
In MongoDB, a write operation is atomic on the level of a single document, even if the operation modifies multiple embedded documents within a single document.
And https://docs.mongodb.org/manual/tutorial/perform-two-phase-commits/ :
Because only single-document operations are atomic with MongoDB, two-phase commits can only offer transaction-like semantics. It is possible for applications to return intermediate data at intermediate points during the two-phase commit or rollback.
In my experience, most likely when you're in need of transactions you're probably using MongoDB as an RDBMS and trying to fit a square peg in a round hole ;)
from mongorepository.
Thanks Rob that helps. As I stated at the beginning I am trying to grasp how the architecture or my thinking needs to change in order to get the best from NoSQL as opposed to a more conventional BLL/DAL with repository or ORM implementation
from mongorepository.
Related Issues (20)
- Delete not working as expected HOT 2
- how to insert data into collection used DBRef HOT 1
- Is this package supports MongoDB version 2.2.3? HOT 1
- when update to driver 2.2? HOT 1
- Referencing external documents, opposed to embedding. HOT 3
- Release on Nuget ? HOT 1
- how to search mongodb for list of ids HOT 1
- mongorepository update specific fields or all fields HOT 1
- Using the latest MongoDB.Driver ? HOT 1
- Using a shared MongoClient or MongoDatabase instance HOT 5
- Any possibility of an update to latest drivers? HOT 1
- Certain value types serializing as binary? HOT 3
- new mongoCsharpDriver HOT 1
- Version 2
- Castle Windsor registration HOT 1
- Migration to .NET Core / .NET Standard HOT 5
- MongoRepositary with latest MongoDB Driver HOT 1
- Support for 2.4.4 driver HOT 1
- Unable to get individual properties from collection document after inheriting from Entity HOT 8
- can not use GetSingle function in MongoRepository.Net45, Version=1.6.11.0 HOT 1
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from mongorepository.