Hi All,
I'm currently transforming the GenVisR package into an Object Oriented system.
Currently I have a virtual class and several child-classes. I am wondering if
there is a way to tell R to use the inspector of the virtual class only if the
inspector of a child class in not defined.
For example say I had a class to store versions of a file-type and I have a
slot in the class to store the position. Between different versions of the
file-type there may be small differences (for example Chromosome may be
capitalized in version 2,3,4 but not version 1). Ideally the child classes for
2,3,4 would be able to inherit the inspector from the virtual class to check
the chromosome name and I would define a separate inspector for version 1 which
is different.
Any thoughts? Currently both inspectors are called (virtual and the appropriate
sub-class), meaning if i added more versions in the future I would have to
re-write the virtual and child class. Whereas if I could say ignore the virtual
(i.e. default) inspector if another is defined I would only have to write the
child class inspector in the future.
Hopefully this makes sense, let me know if it doesn't or if i'm violating a
core OO principle, i'm relatively new to object oriented programming.
Thanks, Zach!
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