I know this isn’t technically a question, but it had to be said.

It can be very difficult converting a team that is stuck in its ways. Is it OK if I quote some of your posts/comments verbatim? I can’t think of a better way of saying what you say.

If you need only one of something than you simply instantiate a single copy of some root factory which keeps track to make sure that you have a single copy. If you instantiate the factory again, than you will have a new copy, but in my opinion that is a good thing. Why would you ever want to prevent the user from having two instances? Say you have an application and you need a central locking object which needs to be a singleton. In production you need one copy, but during testing you want a new copy per test to make sure that test do not share state through the singleton. In my opinion it is better to tell the user that only one instance should be made, and thus allow him to break the rule in testing (or maybe the user wants to run two instances in of the app in a single JVM in which case he really needs two instances.)

When something is a singleton it is a singleton with respect to something. Usually the JVM. There is no way from preventing someone running multiple copy of the app. What you want is a singleton with respect to your application not with respect to JVM as single JVM may run multiple applications.

I have a question regarding your well written articles about the singleton pattern.

I think you make wonderful argues on why not to use this pattern at least not intesively.

Saying that, how can i make sure there is really only a single instance, i.e. how can i enforce that there would be only one instance of that type of class, there is nothing that prevents the user of my libraries from creating more …

thanks,
adiel.

This mail returns me this error.

“We’re writing to let you know that the group you tried to contact (js-test-driver) may not exist, or you may not have permission to post messages to the group. A few more details on why you weren’t able to post:

* You might have spelled or formatted the group name incorrectly.
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Do you know where I can contact with someone that could help me?

Thanks.

for JSTestDrive related questions send email to js-test-driver@googlegroups.com, there are lot of user out there which will be able to help you out and get you up and running. Also check out the project page: http://code.google.com/p/js-test-driver/

I just know, about JsTestDriver, yesterday.

I think that it’s one of the most important developments of the decade.

My problem is that I can’t make working the plugin on my Eclipse.

I’ve seen all the videos I found but didn’t found any solution.

I installed the plugin, I show the correct view even I see how capture the browser (the plugin open the browser with the header of JsTestDriver.

My problem is when I’m trying to launch my tests.

I tried to launch the tests from JsTestDriver view, I tried to launch from Run As (context menu on editor) and I get an error that says something like “”, and if I make one Run Configuration Eclipse remains blocked and I don’t see any response (not in the browser, not in the Eclipse console)

I’m using the example that remains in Google Code but I don’t found any solution.

Can you guide me please?

Can you make one step by step guide?

Thanks.

sorry, I don’t deal with c#, so I am not aware of any examples, but they should be very equivalent to the java ones on this blog.

i really enjoyed reading your posts on singleton using.

can you give me a link or direct me to a simple application in c# that implemets the ApplicationFactory pattern you talked about ?

thanks.