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Re^2: Seeking inside-out object implementations

by xdg (Monsignor)
on Dec 06, 2005 at 23:07 UTC ( #514663=note: print w/replies, xml ) Need Help??

in reply to Re: Seeking inside-out object implementations
in thread Seeking inside-out object implementations

Wow -- I didn't realize you what you were doing under the hood before. I browsed the code. If I understand it correctly in my quick skim -- you're using the inside-out object technique, but storing all the accessor data in a lexical in the Class::BuildMethods file scope, keyed off the package that imported Class::BuildMethods and the instance refaddr. That's an extra hash lookup versus handwritten inside-out objects, but I guess lighter-weight overall than Class::Std without all the constructor crud.

However, I think it will still be subject to the thread/winfork and serialization issues. That probably ought to noted in the docs and you might want to consider using CLONE as noted in Threads and fork and CLONE, oh my! and marking it as safe for 5.8 only.

Still, that's a great example of what can be achieved with independence from the underlying implementation -- and why that's a useful feature. I'll probably use it as an example in the seminar.


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Re^3: Seeking inside-out object implementations
by Ovid (Cardinal) on Dec 06, 2005 at 23:57 UTC

    You're right that I should probably note issues with threading and forking. I've used fork in Perl only a few times and I've only used threads in Java as threaded Perl has never been terribly robust. As a result, since these aren't that common in Perl, I tend not to think about them.


    New address of my CGI Course.

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