GUISA

CQRS ed Event Sourcing su Windows Azure: applicazioni distribuite, scalabilità e security

Architettura — Tue, 26 Mar 2013 08:49:00 GMT

Spero che il titolo vi abbia stuzzicato, perchè non è altro che il titolo dell’ultimo workshop targato DotNetMarche che si terrà questo venerdi ad Ancona. I dettagli dell’evento ed il modulo di iscrizione sono disponibili a questo indirizzo http://dnm Leggi tutto......(read more)

CQRS e i dati stale sono ovunque

Architettura — Sat, 14 Jul 2012 10:09:33 GMT

Quando inizi a lavorare in ottica CQRS, ma più in generale quando ammetti che tra l’esecuzione di un comando e l’aggiornamento dell’UI presentata all’utente possa passare del tempo per cui la UI non riflette immediatamente il risultato del comando , ti Leggi tutto......(read more)

Misusing an ORM

Alkampfer's Place» Software Architecture — Sat, 12 May 2012 07:44:49 GMT

I’ve blogged some time ago that I’m starting to consider ORM an Antipattern, and recently Mr Fowler posted similar thoughts in his bliki, moreover I have the pleasure to be one of the organizer of the first RavenDB official Course in Italy, with my dear Leggi tutto......(read more)

Getting the list of Type associated to a given export in MEF

Alkampfer's Place» Software Architecture — Tue, 08 May 2012 17:36:19 GMT

Basic Request Response WCF service Reason behind a request – response service in WCF Evolving Request Response service to separate contract and business logic How to instantiate WCF host class with MEF One of the problem I had to solve to make WCF and Leggi tutto......(read more)

How to instantiate WCF host class with MEF

Alkampfer's Place» Software Architecture — Tue, 08 May 2012 17:08:18 GMT

Basic Request Response WCF service Reason behind a request – response service in WCF Evolving Request Response service to separate contract and business logic I described in the last post of the series the structure behind the Request/Reponse service Leggi tutto......(read more)

Traffic light vNext

Alkampfer's Place» Software Architecture — Mon, 07 May 2012 16:45:03 GMT

TrafficLight Experiment. Advantage of DDD approach to the problem Traffic Light, say goodbye to public properties It is a long time I did not post about simple Traffic Light experiment. I’ve ended with a super simple Domain with no Getters and no Setters Leggi tutto......(read more)

Evolving Request Response service to separate contract and business logic

Alkampfer's Place» Software Architecture — Mon, 23 Apr 2012 12:56:00 GMT

Example can be downloaded here. I previously described a scenario where the customer needs a really basic Request Response service in WCF, the goal is being able to take advantage of a request / response structure, but with an approach like: “the simpliest Leggi tutto......(read more)

Reason behind a request – response service in WCF

Alkampfer's Place» Software Architecture — Thu, 05 Apr 2012 17:05:11 GMT

I dealt with a minimal implementation of a basic Request Response WCF Service some times ago, now it is time to show some advantages you have using this approach. If the caller is created in .NET technology, you can directly reference the dll that contains Leggi tutto......(read more)

Basic Request Response WCF service

Alkampfer's Place» Software Architecture — Mon, 12 Mar 2012 07:58:00 GMT

The concept of Request-Response service is to have an endpoint with a single function capable to handle a command (a Request) and return a Response, to have a single entry point of our service. There are a lot of architectures around the web based on Leggi tutto......(read more)

Using a state object to store object property values.

Alkampfer's Place» Software Architecture — Tue, 29 Nov 2011 18:05:00 GMT

In an old post I dealt with a possible implementation of a BaseEntity class that stores all properties in a State object (based on a dictionary to store properties). Technically speaking, this solution have no drawbacks respect using field variables to Leggi tutto......(read more)

Dove metto cosa?

Architettura — Mon, 28 Nov 2011 09:53:20 GMT

Spesso noto che i problemi delle applicazioni, non sono da ricercarsi in una architettura poco strutturata o inefficiente o quant’altro, ma proprio nelle basi di come strutturare un progetto. Ad esempio, indipendentemente da che architettura/struttura Leggi tutto......(read more)

Square peg in a round Hole

Alkampfer's Place» Software Architecture — Thu, 27 Oct 2011 08:14:45 GMT

After lots of year working with NHibernate I started to think that probably the whole concept of ORM can be considered an Antipattern. Some people prefer a “classic” approach to the problem, data is the key concept and most of the logic is inside a storage Leggi tutto......(read more)

Is there a reason to put restriction on password?

Alkampfer's Place» Software Architecture — Fri, 12 Aug 2011 07:48:00 GMT

Iâ€™ve stumbled upon this funny comic I usually use long Random generated password, that I store in KeePass for all services that I really care about, (home banking, amazon account that has my credit card, etc), and tend to use easy to remember Leggi tutto......(read more)

Intercept Log4Net message in a Windows application

Alkampfer's Place» Software Architecture — Wed, 11 May 2011 07:53:00 GMT

Scenario: I have some service that runs in the background, but I want the user to be able to launch interactively with a windows form application and I want to intercept all log4net messages issued by the various components that works in the background Leggi tutto......(read more)

Lifecycle of singleton objects

Alkampfer's Place» Software Architecture — Fri, 06 May 2011 09:44:00 GMT

Some days ago I blogged about an implementation of persistent cache component based on Managed Esent and PersistentDictionary. This component is injected into other components thanks to Inversion of Control and it is a Singleton object. Being a singleton Leggi tutto......(read more)

Persistent cache management with Managed Esent.

Alkampfer's Place» Software Architecture — Mon, 02 May 2011 09:01:00 GMT

Managed Esent Persistent Dictionary could easily be used to create a cache component that stores data on disk. Leggi tutto......(read more)

A volte ritornano!

blogs.ASPItalia.com — Mon, 08 Feb 2010 22:45:00 GMT

Con vero piacere ho visto in questi giorni tornare in linea su BEIT i miei webcast del 2006 e 2007 riguardanti i temi architetturali, in particolare il disegno object oriented, i pattern e UML. A suo tempo ebbero un certo seguito perche' Leggi tutto......(read more)

Entity Framework e la corrispondenza con il modello ad oggetti.

Architettura — Fri, 20 Feb 2009 16:22:59 GMT

Questo post nasce da un fatto strano che ho notato sviluppando un progetto con Entity Framework, considerate il seguente spezzone di codice. 1 using (NorthwindEntities context = new NorthwindEntities()) 2 { 3 IEnumerable < Customers > customers1 Leggi tutto......(read more)