more typo fixes
[gitmo/Moose.git] / lib / Moose / Cookbook.pod
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471c4f09 1
2=pod
3
4=head1 NAME
5
6Moose::Cookbook - How to cook a Moose
7
8=head1 DESCRIPTION
9
4711f5f7 10The Moose cookbook is a series of recipes taken from the Moose
471c4f09 11test suite. Each recipe presents some code, which demonstrates
12some of the features of Moose, and then proceeds to explain the
13details of the code.
14
734d1752 15We also provide a L<Moose::Cookbook::FAQ> and a L<Moose::Cookbook::WTF>
16for common questions and problems people have with Moose.
17
471c4f09 18=head1 RECIPES
19
496b74ab 20=head2 Basic Moose
21
4eec354b 22These recipes will give you a good idea of what Moose is capable,
23starting with simple attribute declaration, and moving on to more
24powerful features like laziness, types, type coercion, method
25modifiers, and more.
26
471c4f09 27=over 4
28
021b8139 29=item L<Moose::Cookbook::Basics::Recipe1> - The (always classic) B<Point> example
471c4f09 30
f7f3648d 31A simple Moose-based class. Demonstrated Moose attributes and subclassing.
cb2478d4 32
021b8139 33=item L<Moose::Cookbook::Basics::Recipe2> - A simple B<BankAccount> example
471c4f09 34
f7f3648d 35A slightly more complex Moose class. Demonstrates using a method
36modifier in a subclass.
cb2478d4 37
021b8139 38=item L<Moose::Cookbook::Basics::Recipe3> - A lazy B<BinaryTree> example
471c4f09 39
f7f3648d 40Demonstrates several attribute features, including types, weak
41references, predicates ("does this object have a foo?"), defaults, and
6549b0d1 42lazy attribute construction.
cb2478d4 43
021b8139 44=item L<Moose::Cookbook::Basics::Recipe4> - Subtypes, and modeling a simple B<Company> class hierarchy
471c4f09 45
f7f3648d 46Introduces the creation and use of custom types, a C<BUILD> method,
47and the use of C<override> in a subclass.
cb2478d4 48
021b8139 49=item L<Moose::Cookbook::Basics::Recipe5> - More subtypes, coercion in a B<Request> class
471c4f09 50
f7f3648d 51More type examples, including the use of type coercions.
cb2478d4 52
021b8139 53=item L<Moose::Cookbook::Basics::Recipe6> - The augment/inner example
496b74ab 54
f7f3648d 55Demonstrates the use of C<augment> method modifiers, a way of turning
56the usual method overriding style "inside-out".
cb2478d4 57
021b8139 58=item L<Moose::Cookbook::Basics::Recipe7> - Making Moose fast with immutable
496b74ab 59
5de2944f 60Making a class immutable greatly increases the speed of accessors and
61object construction.
cb2478d4 62
021b8139 63=item L<Moose::Cookbook::Basics::Recipe8> - Managing complex relations with trigger (TODO)
496b74ab 64
cb2478d4 65I<abstract goes here>
66
2be55428 67Work off of this http://code2.0beta.co.uk/moose/svn/Moose/trunk/t/200_examples/007_Child_Parent_attr_inherit.t
68
021b8139 69=item L<Moose::Cookbook::Basics::Recipe9> - Builder methods and lazy_build
496b74ab 70
fbd7ad7a 71The builder feature provides an inheritable and role-composable way to
72provide a default attribute value.
cb2478d4 73
58d129ba 74=item L<Moose::Cookbook::Basics::Recipe10> - Operator overloading, subtypes, and coercion
c2a0627f 75
48757542 76Demonstrates using operator overloading, coercion, and subtypes to
a8b3fe62 77model how eye color is determined during reproduction.
c2a0627f 78
45ef8386 79=item L<Moose::Cookbook::Basics::Recipe11> - BUILD and BUILDARGS (TODO)
80
81We need a good recipe demonstrating how these work.
82
496b74ab 83=back
84
85=head2 Moose Roles
86
4eec354b 87These recipes will show you how to use Moose roles.
88
496b74ab 89=over 4
90
13dbfe49 91=item L<Moose::Cookbook::Roles::Recipe1> - The Moose::Role example
496b74ab 92
f7f3648d 93Demonstrates roles, which are also sometimes known as traits or
94mix-ins. Roles provide a method of code re-use which is orthogonal to
95subclassing.
cb2478d4 96
13dbfe49 97=item L<Moose::Cookbook::Roles::Recipe2> - Advanced Role Composition - method exclusion and aliasing
496b74ab 98
2e3d0a0a 99Sometimes you just want to include part of a role in your
100class. Sometimes you want the whole role but one if its methods
101conflicts with one in your class. With method exclusion and aliasing,
102you can work around these problems.
cb2478d4 103
13dbfe49 104=item L<Moose::Cookbook::Roles::Recipe3> - Runtime Role Composition (TODO)
104379bc 105
cb2478d4 106I<abstract goes here>
107
496b74ab 108=back
109
110=head2 Meta Moose
111
4eec354b 112These recipes show you how to write your own meta classes, which lets
113you extend the object system provide by Moose.
114
496b74ab 115=over 4
116
17a65b17 117=item L<Moose::Cookbook::Meta::Recipe1> - Welcome to the meta-world (Why Go Meta?)
496b74ab 118
38031ac8 119If you're wondering what all this "meta" stuff is, and why you should
120care about it, read this "recipe".
cb2478d4 121
43aa5bf9 122=item L<Moose::Cookbook::Meta::Recipe2> - A meta-attribute, attributes with labels
496b74ab 123
f7f3648d 124One way to extend Moose is to provide your own attribute
125metaclasses. Attribute metaclasses let you extend attribute
126declarations (with C<has>) and behavior to provide additional
127attribute functionality.
cb2478d4 128
43aa5bf9 129=item L<Moose::Cookbook::Meta::Recipe3> - Labels implemented via attribute traits
a7d0cd00 130
aff0421c 131Extending Moose's attribute metaclass is a great way to add
132functionality. However, attributes can only have one metaclass.
133Applying roles to the attribute metaclass lets you provide
134composable attribute functionality.
cb2478d4 135
3f002851 136=item L<Moose::Cookbook::Meta::Recipe4> - Adding a "table" attribute to the metaclass
137
138If you want to store more information about your classes, you'll have
139to extend C<Moose::Meta::Class>. Doing so is simple, but you'll
140probably also want to provide some sugar, so see
c5b9daec 141L<Moose::Cookbook::Extending::Recipe2> as well.
3f002851 142
c5b9daec 143=item L<Moose::Cookbook::Meta::Recipe5> - The "table" attribute implemented as a metaclass trait
24a8fe99 144
c5b9daec 145This example takes the class metaclass we saw in the previous recipe
146and reimplements it as a metaclass trait.
cb2478d4 147
1acd5999 148=item L<Moose::Cookbook::Meta::Recipe6> - Hooking into the immutabilization system (TODO)
149
150Moose has a feature known as "immutabilization". By calling C<<
151__PACKAGE__->meta()->make_immutable() >> after defining your class
152(attributes, roles, etc), you tell Moose to optimize things like
153object creation, attribute access, and so on.
154
155If you are creating your own metaclasses, you may need to hook into
156the immutabilization system. This cuts across a number of spots,
157including the metaclass class, meta method classes, and possibly the
158meta-instance class as well.
159
160This recipe shows you how to write extensions which immutabilize
161properly.
162
163=item L<Moose::Cookbook::Meta::Recipe7> - I<meta-instance> (TODO)
1edfdf1c 164
cb2478d4 165I<abstract goes here>
166
49f6b0ac 167=back
168
6fa0a13f 169=head2 Extending Moose
170
4eec354b 171These recipes cover some more ways to extend Moose, and will be useful
172if you plan to write your own C<MooseX> module.
173
49f6b0ac 174=over 4
175
c8d5f1e1 176=item L<Moose::Cookbook::Extending::Recipe1> - Moose extension overview
177
178There are quite a number of ways to extend Moose. This recipe explains
179provides an overview of each method, and provides recommendations for
180when each is appropriate.
181
f3ce0579 182=item L<Moose::Cookbook::Extending::Recipe2> - Providing a base object class role
c8d5f1e1 183
184Many base object class extensions can be implemented as roles. This
f3ce0579 185example shows how to provide a base object class debugging role that
186is applied to any class that uses a notional C<MooseX::Debugging>
187module.
c8d5f1e1 188
189=item L<Moose::Cookbook::Extending::Recipe3> - Providing an alternate base object class
6fa0a13f 190
191You may find that you want to provide an alternate base object class
192along with a meta extension, or maybe you just want to add some
193functionality to all your classes without typing C<extends
194'MyApp::Base'> over and over.
195
c8d5f1e1 196=item L<Moose::Cookbook::Extending::Recipe4> - Acting like Moose.pm and providing sugar Moose-style
6fa0a13f 197
c5b9daec 198This recipe shows how to provide a replacement for C<Moose.pm>. You
199may want to do this as part of the API for a C<MooseX> module,
5583dc1c 200especially if you want to default to a new metaclass class or base
201object class.
6fa0a13f 202
cb2478d4 203=back
204
205=head1 SNACKS
206
207=over 4
208
f4ebf54f 209=item L<Moose::Cookbook::Snack::Keywords>
210
cb2478d4 211=item L<Moose::Cookbook::Snack::Types>
212
471c4f09 213=back
214
215=head1 SEE ALSO
216
217=over 4
218
8bdc7f13 219=item L<http://www.gsph.com/index.php?Lang=En&ID=291>
471c4f09 220
221=back
222
223=head1 AUTHOR
224
225Stevan Little E<lt>stevan@iinteractive.comE<gt>
226
227=head1 COPYRIGHT AND LICENSE
228
2840a3b2 229Copyright 2006-2009 by Infinity Interactive, Inc.
471c4f09 230
231L<http://www.iinteractive.com>
232
233This library is free software; you can redistribute it and/or modify
234it under the same terms as Perl itself.
235
f7f3648d 236=cut