Worst Storage EVAR

• There are some complications

• Retrieving an object requires that the code to implement it be compiled

• HEAR YE THE LAW: Data is stored, not implementation

• Each object is stored with a list of the roles required to implement it

• MooseX::ClassCompositor builds the right object class for the object at load time

• Retrieving the same ledger twice must return the same object instance both times

• Otherwise you have a race condition

• The API ends up looking like this:

        Moonpig->env->storage->do_with_ledger($guid, sub {
          my ($ledger) = @_;
          ...;
        });

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Copyright © 2013 M. J. Dominus