Silverlight 4 Reference Architecture for LOB apps

A Silverlight 4 Reference Architecturefor Line-of-Business Applications
Dennis Doomen
dennis.doomen@avivasolutions.nl

Dennis Doomen
Requirements
Testable
Pragmatic
Single ResponsibilityPrinciple
DependencyInjection
Don’t DIY
…whateveryour project requires

The traditional architecture…

Well-known
Rich domain models
Manyframeworks
Very flexibele
Lots of work
Lots of plumbingneeded
Notusing RIA frameworks
DTO conversiontroubles
No eagerloading
Views (XAML + C#)
Shell
View Models
Silverlight 4
Application Controller
Service Agent
DTOs
Service Interface
WCF
Workflows
Domain Model
Service Actions
NHibernate(+ Fluent & LINQ)
Service Agents
Unit-of-Work
Repositories
Database
Backoffice System
External Service

Dennis Doomen
Model View-ViewModel
INotifyPropertyChanged
Events
XAML (+C#)
ViewModel
ServiceAgent
{Binding}
Command
Call
Model
Loads

As Microsoft wants it…

Easy tobuild
Simple domain models
Lessplumbingneeded
No DTO conversionsneeded
Maximizes RIA frameworks
Great for CRUD
Batching
CRUD-based
Domain model notpossible
No dynamicrelationshiploading
No enum support
Views (XAML + C#)
Shell
View Models
Silverlight 4
Domain Context
Changesets
WCF RIA Services
Domain Service
Business Actions
Entities
Service Agents
Entity Framework
Database
Backoffice System
External Service

Entity Framework and WCF RIA Services?

Dennis Doomen
WCF RIA Services
Client-side Validation
Automatic change-tracking
Client-side LINQ
Code Sharing
Great for CRUD i.c.m. Entity Framework
Built-in authorization
OData support
WCF based
No rich domain models
No eagerloading
No enum support
Notpersistency ignorant

Dennis Doomen
Entity Framework
Great designer environment
Code Sharing
Fluent interface
POCO support
Great integrationwith WCF RIA/Data
Mappingattributes
Mappingattributes
No free support forothervendors
No enum support
No 2nd level caching

Thenwhat?

Views (XAML + C#)
Shell
View Models
Coroutines
Caliburn Micro
Unity 2 or MEF
Silverlight 4
Service Agent
Bootstrapper
DTOs
Commands
Enterprise Library 5
WCF Data Services
Rest Service
Command Service
Command Handlers
Domain Model
Service Actions
Policy Injection
Logging
Unity 2 of MEF
Workflows
Event Handlers
Domain Events
NHibernate(+ Fluent & LINQ)
Service Agents
Unit of Work
Repositories
Database
Backoffice System
External Service

Dennis Doomen
WCF Data Services
Client-side LINQ
Automatic change-tracking
Great forquerying
OData support
Eagerloading
Projections
WCF based
Built-in authorization
Code Sharing
Client-side Validation
Rich domain models

Commanding

Domain Events

Background InformationMVVM, Coroutines, Commanding, Querying, Domain Events, TestableRepositoryPattern
Example Code, FrameworksThe CQRS Kitchen, CaliburnMicro, MEF, Unity 2, NHibernate, FluentNHibernate, FluentAssertions

Emaildennis.doomen@avivasolutions.nl
Twitter
@ddoomen
Blogwww.dennisdoomen.net

Silverlight 4 Reference Architecture for LOB apps

by Dennis Doomen on Dec 14, 2010

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Silverlight 4 Reference Architecture for LOB apps — Presentation Transcript