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On what basis Directories and Files should be classified (Right now each of my Files are for handling specific section of our application)?
Focus not on files and directories, but on modules. The principal unit of decomposition in Perl is the module.

When designing modules, focus first on the module interface. Perl Best Practices, Chapter 17 (Modules), "Design the module's interface first" advises how to go about this (play testing and so on). For a detailed discussion of software interfaces in general, see On Interfaces and APIs.

What should be the maximum number of lines in a file?
Don't focus on lines in a file. Focus on sound software design. For example:
  • Design highly cohesive, loosely coupled modules.
  • Ensure modules can be tested in isolation.
  • Minimize the exposure of implementation details and avoid global data.
If you do that, code maintenance becomes easier, and none of your files should be grotesquely huge. See also:


In reply to Re: Is there any specific convention/best practices for perl module creation? by eyepopslikeamosquito
in thread Is there any specific convention/best practices for perl module creation? by tomishere

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    [Corion]: Hmmm. I feel a Meditation coming on. I wrote a module, DBIx::PivotQuery, which returns a table-like set of rows (AoA) but some columns are generated from column values, like in an (Excel) pivot table or a ROLLUP command
    [Corion]: My current approach for subtotals involves rerunning the given query, with the hint to the user that they should use a temporary table if they want better performance.
    [Corion]: But I could create that temporary table in the module and use it for the improved perfomance directly instead.
    [Corion]: And the question is, what would be better/preferred ;-)
    [Corion]: Hmm - not exactly like the ROLLUP command. Ah well.

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