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Re: Re: Re: OO - problem with inheritanceby frag (Hermit) |
on Jan 14, 2002 at 21:43 UTC ( [id://138629]=note: print w/replies, xml ) | Need Help?? |
So I would like to access the hashref in base_class but the contents should be specific to the calling class.
I'm a little confused about what you're doing. You want each change submitted to the base_class's %parameter_config for confirmation; after that, the actual values get stored in each subclass's own %parameter_config, right? If so, just change your accessors so that before fiddling with %sub_class::parameter_config it first messes with %base_class::parameter_config, to do whatever checking/storing you want done there, and then store the data in each individual subclass's hash. (Or, if you follow your new approach, replace "fiddling with %base_class::parameter_config" with "call validation methods from ValidateNewParameter". Same principle.) I need the %parameter_config hash before new() is called, because new() needs this information to figure out, if the parameters given to new() are correct. So I need code I can run when the class is loaded. OK, so put something like this at the start of each subclass: And now each subclass has its own copy of %parameter_config. Just make sure that &base_class::parameter_config returns a copy of the hash. -- Frag.
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