Re: Singleton Pattern

"Karl Uppiano" <>
Sat, 25 Nov 2006 08:38:28 GMT
"Adi" <> wrote in message

Dear all,

I have a question about singleton pattern. In my java user group,
someone said that this pattern should be avoided, but he didn't explain
the reason.

So I am curious here, is this statement true ?

Sometimes, I suppose.

Someone else replied that this pattern is hard to test and make other
classes tightly coupled with this Singleton class. Somehow I doubt it
but I also can find any argument for that. What I know is just because
this pattern is hard to test doesn't mean that this pattern should be
avoided right ? I use this pattern a lot of times and found it useful.

Do you have any comments ?

If your design needs a singleton, then you should use a singleton. Perhaps
your colleague was referring to some of the potential pitfalls (everything
has pitfalls) described here:

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