Object-to-

object

mapping

© Oleksii Dukhno @ Lohika Systems

Complexity of software

Tools for fighting with the

complexity

Abstractions and model

Models, DTO and ViewModels data transfer object = model data only

view model = model data + behavioral aspects

data transfer object != view modelbut

view model = data transfer object

Models, DTO and ViewModels

Flattening

Why using o-2-o ?

Encapsulate Flattening Logic

Why using AutoMapper ?

Encapsulate Flattening Logic

Result = Neater code,

Simpler support,

Better understanding

How to use AutoMapper ?

Mapping Through

Convention

Source/Destination Properties Names

Convention

Mapping Through

Configuration

Projection

Value Resolver

Type Converter

Ignore

TestMapping

Validate Configuration

Mapping Through Convention

Mapping Through ConfigurationIgnore

Will throw AutomapperConfigurationException

Mapping Through ConfigurationIgnore

Mapping Through ConfigurationProjection

Mapping Through ConfigurationProjection

Mapping Through ConfigurationType Converter

Mapping Through ConfigurationType Converter

Mapping Through ConfigurationValue Resolver

Mapping Through ConfigurationValue Resolver

Mapping Through ConfigurationValue Resolver

Using AutoMapper in Allocine-CMS

Using AutoMapper in Allocine-CMS

Emit Mapper Key Sufficiencies

Really fast (close to hand written code)

Supports mono

Emit Mapper - simplest example

CODE

Emit Mapper – custom converter

CODE

Emit Mapper – post processing

CODE

Emit Mapper vs. AutoMapper

Style Facade Speed Open Source Reliability

Emit Mapper Functional No The Best Yes Low

AutoMapper OO Yes Good Yes High