On Sun, 17 Sep 2000, Chris Winters wrote:
Hi Greg,
Check out Class::Singleton for this purpose. Works great for me.
Basically, the first time you create the object, do:
my $obj = $object_class-instance( ... );
Every successive time you want the object, just call:
my $obj = $object_class-instance;
And you'll get the same object back. Initialization stuff (such as
database connects, whatever) is put in the _new_instance() method,
which is called when the object is created but not when the object is
returned.
The object is stored in the class itself, and Class::Singleton is
actually a really simple module (probably a 10-to-1 ratio of
documentation-to-code), but it's nice to have a consistent, standard
way of doing things.
One thing C::Singleton misses is a clear_instance method though, which is
pretty much necessary for mod_perl work (I'm surprised Andy hasn't fixed
this, since he does a lot of mod_perl stuff)...
However copying the code is pretty trivial and adding that method is about
another 3 lines.
--
Matt/
Fastnet Software Ltd. High Performance Web Specialists
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