Moose::Cookbook - How to cook a Moose
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Moose::Cookbook - How to cook a Moose
version 2.1605
The Moose cookbook is a series of recipes showing various Moose
features. Most recipes present some code demonstrating some feature,
and then explain the details of the code.
You should probably read the the Moose::Manual manpage first. The manual
explains Moose concepts without being too code-heavy.
These recipes will give you a good overview of Moose's capabilities, starting
with simple attribute declaration, and moving on to more powerful features like
laziness, types, type coercion, method modifiers, and more.
- the Moose::Cookbook::Basics::Point_AttributesAndSubclassing manpage
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A simple Moose-based class. Demonstrates basic Moose attributes and subclassing.
- the Moose::Cookbook::Basics::BankAccount_MethodModifiersAndSubclassing manpage
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A slightly more complex Moose class. Demonstrates using a method modifier in a
subclass.
- the Moose::Cookbook::Basics::BinaryTree_AttributeFeatures manpage
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Demonstrates several attribute features, including types, weak
references, predicates (``does this object have a foo?''), defaults,
laziness, and triggers.
- the Moose::Cookbook::Basics::Company_Subtypes manpage
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Introduces the creation and use of custom types, a
BUILD
method, and the
use of override
in a subclass. This recipe also shows how to model a set of
classes that could be used to model companies, people, employees, etc.
- the Moose::Cookbook::Basics::HTTP_SubtypesAndCoercion manpage
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This recipe covers more subtype creation, including the use of type coercions.
- the Moose::Cookbook::Basics::Immutable manpage
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Making a class immutable greatly increases the speed of accessors and
object construction.
- the Moose::Cookbook::Basics::BinaryTree_BuilderAndLazyBuild manpage - Builder methods and lazy_build
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The builder feature provides an inheritable and role-composable way to
provide a default attribute value.
- the Moose::Cookbook::Basics::Genome_OverloadingSubtypesAndCoercion manpage
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Demonstrates using operator overloading, coercion, and subtypes to
model how eye color is determined during reproduction.
- the Moose::Cookbook::Basics::Person_BUILDARGSAndBUILD manpage
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This recipe demonstrates the use of
BUILDARGS
and BUILD
to hook
into object construction.
- the Moose::Cookbook::Basics::DateTime_ExtendingNonMooseParent manpage
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In this recipe, we make a Moose-based subclass of DateTime, a
module which does not use Moose itself.
- the Moose::Cookbook::Basics::Document_AugmentAndInner manpage
-
Demonstrates the use of
augment
method modifiers, a way of turning
the usual method overriding style ``inside-out''.
These recipes will show you how to use Moose roles.
- the Moose::Cookbook::Roles::Comparable_CodeReuse manpage
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Demonstrates roles, which are also sometimes known as traits or
mix-ins. Roles provide a method of code re-use which is orthogonal to
subclassing.
- the Moose::Cookbook::Roles::Restartable_AdvancedComposition manpage
-
Sometimes you just want to include part of a role in your
class. Sometimes you want the whole role but one of its methods
conflicts with one in your class. With method exclusion and aliasing,
you can work around these problems.
- the Moose::Cookbook::Roles::ApplicationToInstance manpage
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In this recipe, we apply a role to an existing object instance.
These recipes show you how to write your own meta classes, which lets
you extend the object system provided by Moose.
- the Moose::Cookbook::Meta::WhyMeta manpage
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If you're wondering what all this ``meta'' stuff is, and why you should
care about it, read this ``recipe''.
- the Moose::Cookbook::Meta::Labeled_AttributeTrait manpage
-
Extending Moose's attribute metaclass is a great way to add
functionality. However, attributes can only have one metaclass.
Applying roles to the attribute metaclass lets you provide
composable attribute functionality.
- the Moose::Cookbook::Meta::Table_MetaclassTrait manpage
-
This recipe takes the class metaclass we saw in the previous recipe
and reimplements it as a metaclass trait.
- the Moose::Cookbook::Meta::PrivateOrPublic_MethodMetaclass manpage
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This recipe shows a custom method metaclass that implements making a
method private.
- the Moose::Cookbook::Meta::GlobRef_InstanceMetaclass manpage
-
This recipe shows an example of how you create your own meta-instance
class. The meta-instance determines the internal structure of object
instances and provide access to attribute slots.
-
In this particular instance, we use a blessed glob reference as the instance
instead of a blessed hash reference.
- Hooking into immutabilization (TODO)
-
Moose has a feature known as ``immutabilization''. By calling
<
__PACKAGE__-
meta()->make_immutable()
>> after defining your class
(attributes, roles, etc), you tell Moose to optimize things like
object creation, attribute access, and so on.
-
If you are creating your own metaclasses, you may need to hook into
the immutabilization system. This cuts across a number of spots,
including the metaclass class, meta method classes, and possibly the
meta-instance class as well.
-
This recipe shows you how to write extensions which immutabilize
properly.
These recipes cover some more ways to extend Moose, and will be useful
if you plan to write your own MooseX
module.
- the Moose::Cookbook::Extending::ExtensionOverview manpage
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There are quite a few ways to extend Moose. This recipe provides an
overview of each method, and provides recommendations for when each is
appropriate.
- the Moose::Cookbook::Extending::Debugging_BaseClassRole manpage
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Many base object class extensions can be implemented as roles. This
example shows how to provide a base object class debugging role that
is applied to any class that uses a notional
MooseX::Debugging
module.
- the Moose::Cookbook::Extending::Mooseish_MooseSugar manpage
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This recipe shows how to provide a replacement for
Moose.pm
. You
may want to do this as part of the API for a MooseX
module,
especially if you want to default to a new metaclass class or base
object class.
- the Moose::Cookbook::Snack::Keywords manpage
- the Moose::Cookbook::Snack::Types manpage
These cover topics that are no longer considered best practice. We've kept
them in case in you encounter these usages in the wild.
- the Moose::Cookbook::Legacy::Labeled_AttributeMetaclass manpage
- the Moose::Cookbook::Legacy::Table_ClassMetaclass manpage
- the Moose::Cookbook::Legacy::Debugging_BaseClassReplacement manpage
- http://www.gsph.com/index.php
This software is copyright (c) 2006 by Infinity Interactive, Inc.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
Moose::Cookbook - How to cook a Moose
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