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Re: the need to rebless

by demerphq (Chancellor)
on Nov 21, 2005 at 10:20 UTC ( [id://510455]=note: print w/replies, xml ) Need Help??

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in reply to The need to rebless (was: Informal Poll: Traits)
in thread Informal Poll: why aren't you using traits?

I have objects that are lazily evaluated using rebless. Basically the objects represent a pricing scheme. Until $obj->price() is called the objects are just a hash of the parameters required to run a query out of the DB to get the data and are of the class 'Pricer::Stub', when Price::Stub::price() is called the routine extracts the required data and converts itself into a real Pricer object. And then calls price() a second time on the new object.

Code using the Pricer object never knows or cares which object type is involved, as the Pricer objects are manufactored by a factory object.

I used this because the $obj->price() method is called very often, and thus I didnt want conditional logic in the price() method itself to handle this behaviour. Personally I think this is a very effective design pattern and I'm happy to use it.

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$world=~s/war/peace/g

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