initializing objects once in WCF

Question

I have WCF service that is hosted in IIS.

I need to initialize once several things that will exists through all calls to the services.

Where is the appropriate place to make those initializations ?

Thanks for assistance .

Massimiliano Peluso · Accepted Answer · 2012-02-02T13:47:49.973

4

Use constructor (either that of BaseService or actual service class) to initialize these properties

Bear in mind that when WCF service is configured for Per-Call instance mode, Service instance will be created for each client request

If is not strictly needed don't use any Singleton strategy:

Singleton WCF services should hardly ever be used- Singletons are the enemy of scalability! They only make sense in weird scenarios- logging to a single file, a single communications port or hardware device.

edited Feb 02 '12 at 13:47

answered Feb 02 '12 at 13:40

Massimiliano Peluso

26,379
6
61
70

Actually this I want to do , create on file for logging and one DB object . – Night Walker Feb 02 '12 at 13:49
it will be hard to manage the synchronization between threads especially for DB operation – Massimiliano Peluso Feb 02 '12 at 13:51

score 1 · Answer 2 · edited May 23 '17 at 12:03

1

You can initialize them in static constructor or using Container's with Lifetime manager.

Singleton Per Call Context (Web Request) in Unity

edited May 23 '17 at 12:03

Community

1
1

answered Feb 02 '12 at 13:39

Boris Modylevsky

3,029
1
26
42

score 1 · Answer 3 · answered Feb 02 '12 at 13:44

1

If your WCF service is configured to use ASP.NET Compatibility Mode, then just initialize them in Application_OnStart in Global.asax.

answered Feb 02 '12 at 13:44

Roy Dictus

32,551
8
60
76

initializing objects once in WCF

3 Answers3