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All the Perl that's Practical to Extract and Report

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  • Hibernate is more complex than Class::DBI, but it's not hard to use. To your specific complaints, Hibernate doesn't need Tomcat, although Tomcat is a common place to use it. It uses code generation, but so Class::DBI. In both cases, the code generation is done at run-time. It does use XML config files, and I kind of like them. Take a look at this one from the quickstart chapter:

    <?xml version="1.0"?>
    <!DOCTYPE hibernate-mapping
        PUBLIC "-//Hibernate/Hibernate Mapping DTD//EN"

    • Personally, my brain switches off at the sight of XML, so I find it really hard to read that example at all. Seriously.

      I'm not entirely convinced that

      __PACKAGE__->constrain_column(name => qr/\w{1,16}/);

      is that much more confusing than their XML, but the constrain_column stuff is fairly simplistic at the minute (interface wise. It's actually designed so that my base class can set up certain things to make it hook into CGI::Untaint in nice ways). I'm certainly tempted to allow:

      • > __PACKAGE__->constrain_column(name => sub { length = 16 });

        That was even easier than I'd expected. (Other than perl needing to disambiguate via length()...)

            } elsif (ref $how eq "Regexp") {
              $class->add_constraint(regexp => $col => sub { shift =~ $how });
        |+  } elsif (ref $how eq "CODE") {
        |+    $class->add_constraint(
        |+      code => $col => sub { local $_ = $_[0]; $how->($_) });
            } else {