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Re: Difference in retrieving values from a varchar2 column and number column from DB

by Anonymous Monk
on Dec 03, 2013 at 13:17 UTC ( #1065411=note: print w/ replies, xml ) Need Help??


in reply to Difference in retrieving values from a varchar2 column and number column from DB

(I cannot comment on the stuck-ness as it is not obvious to me yet. Perhaps list the exact error message that is produced?.)

But look at that: prototype specified for supposedly a method; calling with indirect method call; and then the last colon-colon -- what the hell does that do?!


Comment on Re: Difference in retrieving values from a varchar2 column and number column from DB
Re^2: Difference in retrieving values from a varchar2 column and number column from DB
by GrandFather (Cardinal) on Dec 03, 2013 at 13:44 UTC

    Do you mean the :: in return $obj->SUPER::new(@args);? SUPER calls the base class method of the object. For example:

    use strict; use warnings; package Base; sub method { my ($self) = @_; my $class = ref $self; print "In Base::method(). I'm a $class instance.\n"; } package Derived; push @Derived::ISA, 'Base'; sub new { my ($class) = @_; return bless {}, $class; } sub method { my ($self) = @_; print "In Derived::method()\n"; $self->SUPER::method(); } package main; my $obj = Derived->new(); $obj->method();

    Prints:

    In Derived::method() In Base::method(). I'm a Derived instance
    True laziness is hard work

      I am sorry for making you write an example as I referred to "the last colon-colon" in the push statement ...

      push @ipElement,(new MyPackage::NetAddr::IP::($row_ip->{IP}, '255.255. +255.255')); ...

      No, the

      ::

      in

      return $obj->SUPER::new(@args);

      returns the base class method of the containing class/package.

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