every_list(String $method_name, Bool ?$override_cache = 0)

Causes every method in the object's hierarchy with the given name to be invoked. The resulting list is the combined set of results from all the methods, pushed together in top-to-bottom order (hierarchy-wise).

"every_list()" returns a list in list context and an array reference in scalar context.

The result is cached (per calling package) and the next time the method is called from the same package with the same method argument, the cached result is returned. This is to speed up method calls, because internally this module uses NEXT, which is quite slow. It is expected that "every_list()" is used for methods returning static lists (object defaults, static class definitions and such). If you want to override the caching mechanism, you can provide the optional second argument. The result is cached in any case.

See the synopsis for an example.

every_hash(String $method_name, Bool ?$override_cache = 0)

Causes every method in the object's hierarchy with the given name to be invoked. The resulting hash is the combined set of results from all the methods, overlaid in top-to-bottom order (hierarchy-wise).

"every_hash()" returns a hash in list context and a hash reference in scalar context.

The cache and the optional cache override argument work like with "every_list()".

Example:

  package Person;
  use base 'Data::Inherited';

  sub new {
    my $class = shift;
    my $self = bless {}, $class;
    my %args = @_;
    %args = ($self->every_hash('DEFAULTS'), %args);
    $self->$_($args{$_}) for keys %args;
    $self;
  };

  sub DEFAULTS {
    first_name => 'John',
    last_name  => 'Smith',
  };

  package Employee;
  use base 'Person';

  sub DEFAULTS {
    salary => 10_000,
  }

  package LocatedEmployee;
  use base 'Employee';

  # Note: no default for address, but different salary

  sub DEFAULTS {
    salary     => 20_000,
    first_name => 'Johan',
  }

  package main;
  my $p = LocatedEmployee->new;

  # salary: 20000
  # first_name: Johan
  # last_name: Smith

flush_every_cache_by_key(String $key)