Learn how to map database objects to domain objects

By: Dan
DOWNLOAD AS PDF

How can a coder automatically map database objects to domain objects? Find out in this blog on Object Mapping!

Some years ago, I was working on a project that had a rather extensive data model (200+ tables). While working on the many data retrieval methods, I spent many hours writing code to map database objects to domain objects. This type of code is not exciting – in fact, it’s rather boring to write!

In the throes of my boredom, I started thinking about a way to automate this task and then figured – if I was thinking about it, surely someone else had to. A quick Google search led me to AutoMapper.

 

Auto Mapper

What is AutoMapper? According to its creator, “AutoMapper is an object-object mapper. Object-object mapping works by transforming an input object of one type into an output object of a different type. What makes AutoMapper interesting is that it provides some interesting conventions to take the dirty work out of figuring out how to map type A to type B. As long as type B follows AutoMapper’s established convention, almost zero configuration is needed to map two types.” (http://automapper.org/)

AutoMapper, at its simplest, allowed me to map my source data objects to my destination domain objects using one line of code:

Mapper.CreateMap<ObjectTypeSource, ObjectTypeDestination>();

To execute the mapping:

ObjectTypeDestination obj = Mapper.Map(sourceInstance);

For simple mapping scenarios, that’s all it takes. AutoMapper provides a large number of options that allow you to flatten object models during the mapping process and many more advanced features to handle pretty much any mapping challenge you might face. It is one of the most useful tools I’ve discovered.

For more information about AutoMapper:
http://automapper.org/

latest news

01

5 signs your company needs an ERP

An ERP system captures information from all departments, and it may be time for you to implement it within your organization. Here are 5 signs that make it clear your business will benefit from an ERP system.

02

7 Benefits of an ERP System For Your Business

ERPs manage the core processes of an organization – from HR to sales to finance – and house all the data. Many ERPs also offer increased visibility, analytics, and efficiency across the company. Let’s explore some of the benefits of running your business on an ERP system

03

8 Benefits to Adopting DevOps into your Organization

Under DevOps, a “product-first” approach, companies align development projects with the business goals of operations so teams can jointly build, test, release, and maintain new digital applications more frequently and more efficiently. What benefits does DevOps offer?

Copyright© 2018 alligatortek. All rights reserved.