Entity Framework

it_geeks — Thu, 04 May 2017 12:59:47 +0000

ENTITY FRAMEWORK is a layer which sits between application and the database. EF is simply an abstraction layer that allows developers to model the domain, and it generates the database access logic for you. It allows you to write your domain objects in POCO classes and use it in application. The tooling support for Entity Framework in Visual Studio is great, but is ultimately just tooling to help with EDMX file creation. The actual framework is the .NET DLLs which act upon the information declared in your EDMX files. Although it is easy to understand and implement. It affects the performance of application most of the time. Secondly, if you are debugging then some time it becomes very difficult as it takes time to load the internal attributes of the objects.

EF has the following Advantage:: reduces the amount code, LINQ for all object queries, one don’t have to write the SQL queries, easy to manage relationship between tables, developers spend lots of time coding the plumbing required to save the data to the data store. EF Reduces this time, hence the developers can spend time actually building the application, developers can work against domain specific objects such as employee and employee address and need not to worry about how and where these data is stored, applications are now easier to maintain as the amount of code is reduced, applications are no longer tied up to a particular data store EF Framework will handle the data storage, one don’t have to write SQL queries EF Will take care of that, the Entity framework is very easy to use,

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Redis

it_geeks — Tue, 28 Mar 2017 13:43:17 +0000

REDIS is in-memory key value store. The data types can be manipulated with atomic operations to push/pop elements, add/remove elements, perform server side union, intersection, difference between sets, and so forth. It supports different kind of sorting abilities. It also supports persistence and replication and there is a clear description of how to implement a Distributed Lock Manager on top of RedisRedis is by far the better choice for a news feed. It is similar to memcached but the dataset is not volatile, but also lists, sets, and ordered sets. Hence, the most common storage engine for news feeds is by far Redis which is fast in-memory and easy to operate. Due to it’s persistence capabilities, it can be used as a datastore and not just a cache.
What is unique or different about REDIS::

– Redis has a rich concept of sets, and makes set operations simple and fast (union, intersection, etc)
– Sorted sets make sorting items by relative scores easy. Rankings of elements in a set are simple. There are very many uses for this
– It is easy to use Redis pub/sub to set up a fast and reliable messaging queue between processes
– Bit operations (BITOP, BITCOUNT, etc).

Redis keys can contain values which accept bit operations (and, or, xor — 00110111 & 00111111 — etc). Very fast comparisons of bit keys is available to you, with a world of uses, especially for logging and other forms of tracking.

– Using Redis primitives it’s really simple to implement a real-time tracking filtering system or a spam filtering system.

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Entity Framework

Redis