kiokudb::typemap::entry::set(3pm) [debian man page]

KiokuDB::TypeMap::Entry::Set(3pm)			User Contributed Perl Documentation			 KiokuDB::TypeMap::Entry::Set(3pm)

NAME

       KiokuDB::TypeMap::Entry::Set - A typemap entry for KiokuDB::Sets

DESCRIPTION

       This is an internal typemap entry that handles KiokuDB::Set objects of various flavours.

       You shouldn't need to use it directly, as the default typemap will contain an entry for it.

perl v5.12.4							    2010-10-11					 KiokuDB::TypeMap::Entry::Set(3pm)

KiokuDB::TypeMap::Entry::Callback(3pm)			User Contributed Perl Documentation		    KiokuDB::TypeMap::Entry::Callback(3pm)

NAME

       KiokuDB::TypeMap::Entry::Callback - Callback based inflation/deflation of objects

SYNOPSIS

	   KiokuDB::TypeMap->new(
	       entries => {
		   'My::Class' => KiokuDB::TypeMap::Entry::Callback->new(
		       expand => "new", # My::Class->new(%$self)
		       collapse => sub {
			   my $self = shift;
			   return %$self; # provide args to 'new' in this example
		       },
		       id => sub { "foo" }, # 'id' callback is optional
		   ),
	       },
	   );

DESCRIPTION

       This KiokuDB::TypeMap entry provides callback based inflation/deflation.

       The major limitation of this method is that it cannot be used for self referential structures. This is because the object being inflated is
       only constructed after all of its arguments are.

       For the overwhelming majority of the use cases this is good enough though.

ATTRIBUTES

       collapse
	   A method name or code reference invoked on the object during collapsing.

	   This is evaluated in list context, and the list of values it returns will be collapsed by the KiokuDB::Collapser and then stored.

       expand
	   A method name or code reference invoked on the class of the object during loading.

	   The arguments are as returned by the "collapse" callback.

       id  An optional method name or code reference invoked to get an ID for the object.

	   If one is not provided the default (UUID based) generation is used.

       intrinsic
	   A boolean denoting whether or not the object should be collapsed with no ID, and serialized as part of its parent object.

	   This is useful for value like objects, for whom the reference address makes no difference (such as URI objects).

perl v5.12.4							    2010-10-11				    KiokuDB::TypeMap::Entry::Callback(3pm)