1MakeMethods::Docs::RelaUtseedrMoCdounltersi(b3u)ted PerlMaDkoecMuemtehnotdast:i:oDnocs::RelatedModules(3)
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NAME

6       Class::MakeMethods::Docs::RelatedModules - Survey of Class Builders
7

SYNOPSIS

9         http://search.cpan.org/search?mode=module&query=Class
10

DESCRIPTION

12       There are a variety of modules on CPAN dedicated to the purpose of
13       generating common constructor and accessor methods. Below, I survey
14       several of these, summarizing some basic features and technical
15       approaches, and comparing them to Class::MakeMethods and other modules.
16
17   Caution
18       Please note that these comments are for basic comparison purposes only
19       and may be incorrect or out of date. Please consult the documentation
20       from a current version of each module for more specific details.
21       Corrections and clarifications would by welcomed by the author at the
22       email address below.
23
24   Points of Comparison
25       In general, I compared the following characteristics:
26
27       Distribution
28           Is it included with Perl, or on CPAN? Is it being actively
29           maintained?
30
31       Usage
32           How do you go about declaring your class's methods?
33
34       Mechanism
35           How are they generated and delivered?
36
37       Instance type
38           Are the objects of your class blessed hashes, or something else?
39
40       Core Methods
41           Does the module provide a constructor and basic accessors? Are
42           there specialized methods for hash-ref, array-ref, and object-ref
43           accessors?
44
45       Extensible
46           Can you subclass the package to create new types of methods, or is
47           there some other way to extend it?
48
49       Other Methods
50           Other types of methods provided.
51
52       Emulator
53           Does Class::MakeMethods provide a drop-in replacement for this
54           module?
55
56       Comments
57           Other characteristics or features of note.
58
60   accessors
61       Distribution
62           CPAN. Uploaded Sep 2003.
63
64       Comments
65           I have not yet reviewed this module in detail.
66
67       Example
68             package MyObject;
69             use accessors qw( foo bar baz );
70
71   Attribute::Property
72       Distribution
73           CPAN.
74
75       Comments
76           I have not yet reviewed this module in detail.
77
78   Class::Accessor
79       Distribution
80           CPAN. Last update 4/01.
81
82       Usage
83           Inherit and call function with declaration arguments
84
85       Mechanism
86           Generates and installs closures
87
88       Instance Type
89           Hash.
90
91       Subclasses Cleanly
92           Cleanly.
93
94       Standard Methods
95           Scalar accessors.
96
97       Extensible
98           Yes.
99
100       Comments
101           Accessor methods call overwritable "self-<get(key)" and
102           "self-<set(key, value)" methods.
103
104           Also includes Class::Accessor::Fast, which creates direct hash keys
105           accessors without calling get and set methods.
106
107       Emulator
108           Yes, but only for the Fast variation; see
109           Class::MakeMethods::Emulator::AccessorFast.
110
111       Example
112             package MyObject;
113             @ISA = qw(Class::Accessor);
114             MyObject->mk_accessors(qw( simple ordered mapping obj_ref ));
115
116   Class::Class
117       Distribution
118           CPAN. Last update 1/00.
119
120       Usage
121           Inherit and fill %MEMBERS hash; methods created when first object
122           is created
123
124       Mechanism
125           Generates and installs closures
126
127       Instance Type
128           Hash.
129
130       Subclasses Cleanly
131           Yes.
132
133       Standard Methods
134           Constructor and various accessors.
135
136       Extensible
137           No.
138
139       Example
140           Usage is similar to Class::Struct:
141
142             package MyObject;
143             use Class::Class;
144             @ISA = qw(Class::Class);
145             %MEMBERS = (
146               simple  => '$',
147               ordered => '@',
148               mapping => '%',
149               obj_ref => 'FooObject'
150             );
151
152       Other Method Types
153           Provides a polymorph() method that is similar to Class::Method's
154           "ClassName:class_name -require".
155
156   Class::Constructor
157       Distribution
158           CPAN. Last update 11/01.
159
160       Usage
161           Inherit and call function with declaration arguments
162
163       Mechanism
164           Generates and installs closures
165
166       Instance Type
167           Hash.
168
169       Subclasses Cleanly
170           Cleanly.
171
172       Standard Methods
173           Hash constructor, with bells.
174
175       Extensible
176           No.
177
178       Emulator
179           No, but possible.
180
181       Example
182             package MyObject;
183             @ISA = qw(Class::Constructor);
184             MyObject->mk_constructor( Name => 'new' );
185
186   Class::Classgen
187       Distribution
188           CPAN. Last update 12/00.
189
190       Usage
191           Pre-processor run against declaration files.
192
193       Mechanism
194           Assembles and saves code file
195
196       Instance Type
197           Hash.
198
199       Subclasses Cleanly
200           Yes. (I think.)
201
202       Standard Methods
203           Constructor and various accessors.
204
205       Extensible
206           No. (I think.)
207
208       Example
209             header:
210                 package MyObject;
211             variables:
212                 $simple
213                 @ordered
214                 %mapping
215                 $obj_ref
216
217   Class::Contract
218       Distribution
219           CPAN. Last update 5/01.
220
221       Usage
222           Call function with declaration arguments
223
224       Mechanism
225           Generates and installs closures
226
227       Instance Type
228           Scalar reference with external data storage.
229
230       Subclasses Cleanly
231           Yes.
232
233       Standard Methods
234           Constructor and various accessors.
235
236       Extensible
237           Yes. (I think.)
238
239       Comments
240           Supports pre- and post-conditions, class invariants, and other
241           software engineering goodies.
242
243       Example
244             package MyObject;
245             use Class::Contract;
246             contract {
247               ctor 'new';
248               attr 'simple'  => SCALAR;
249               attr 'ordered' => ARRAY;
250               attr 'mapping' => HASH;
251               attr 'obj_ref' => 'FooObject';
252             }
253
254   Class::Data::Inheritable
255       Distribution
256           CPAN. Last update 4/00.
257
258       Usage
259           Inherit and call function with declaration arguments
260
261       Mechanism
262           Generates and installs closures
263
264       Instance Type
265           Class data, with inheritance.
266
267       Subclasses Cleanly
268           Yes, specifically.
269
270       Standard Methods
271           Scalar accessors.
272
273       Extensible
274           No.
275
276       Example
277           Usage is similar to Class::Accessor:
278
279             package MyObject;
280             @ISA = qw(Class::Data::Inheritable);
281             MyObject->mk_classdata(qw( simple ordered mapping obj_ref ));
282
283       Emulator
284           Yes, Class::MakeMethods::Emulator::Inheritable, passes original
285           test suite.
286
287   Class::Delegate
288       Distribution
289           CPAN. Uploaded 12/0.
290
291       Comments
292           I have not yet reviewed this module in detail.
293
294   Class::Delegation
295       Distribution
296           CPAN. Uploaded 12/01.
297
298       Comments
299           I have not yet reviewed this module in detail.
300
301   Class::Generate
302       Distribution
303           CPAN. Last update 11/00.
304
305       Usage
306           Call function with declaration arguments
307
308       Mechanism
309           Assembles and evals code string, or saves code file.
310
311       Instance Type
312           Hash.
313
314       Subclasses Cleanly
315           Yes.
316
317       Standard Methods
318           Constructor and accessors (scalar, array, hash, object, object
319           array, etc).
320
321       Extensible
322           Unknown.
323
324       Comments
325           Handles private/protected limitations, pre and post conditions,
326           assertions, and more.
327
328       Example
329           Usage is similar to Class::Struct:
330
331             package MyObject;
332             use Class::Generate;
333             class MyObject => [
334               simple  => '$',
335               ordered => '@',
336               mapping => '%',
337               obj_ref => 'FooObject'
338             ];
339
340   Class::Hook
341       Distribution
342           CPAN. Uploaded 12/01.
343
344       Comments
345           I have not yet reviewed this module in detail.
346
347   Class::Holon
348       Distribution
349           CPAN. Experimental/Alpha release 07/2001.
350
351       Instance Type
352           Hash, array, or flyweight-index.
353
354       Subclasses Cleanly
355           No. (I think.)
356
357       Standard Methods
358           Constructor and scalar accessors; flywieght objects also get scalar
359           mutator methods.
360
361       Extensible
362           No. (I think.)
363
364       Comments
365           I'm not sure I understand the intent of this module; perhaps future
366           versions will make this clearer....
367
368   Class::MethodMaker
369       Distribution
370           CPAN. Last update 1/01.
371
372       Usage
373           Import, or call function, with declaration arguments
374
375       Mechanism
376           Generates and installs closures
377
378       Instance Type
379           Hash, Static.
380
381       Subclasses Cleanly
382           Yes.
383
384       Standard Methods
385           Constructor and various accessors.
386
387       Extensible
388           Yes.
389
390       Example
391           Usage is similar to Class::MakeMethods:
392
393             package MyObject;
394             use Class::MethodMaker (
395               new     =>   'new',
396               get_set =>   'simple',
397               list    =>   'ordered',
398               hash    =>   'mapping',
399               object  => [ 'FooObject' => 'obj_ref' ],
400             );
401
402       Emulator
403           Yes, Class::MakeMethods::Emulator::MethodMaker, passes original
404           test suite.
405
406   Class::MakeMethods
407       Distribution
408           CPAN.
409
410       Usage
411           Import, or call function, with declaration arguments; or if
412           desired, make methods on-demand with Autoload, or declare
413           subroutines with a special Attribute.
414
415       Mechanism
416           Generates and installs closures
417
418       Instance Type
419           Hash, Array, Scalar, Static, Class data, others.
420
421       Subclasses Cleanly
422           Yes.
423
424       Standard Methods
425           Constructor and various accessors.
426
427       Extensible
428           Yes.
429
430       Example
431           Usage is similar to Class::MethodMaker:
432
433             package MyObject;
434             use Class::MakeMethods::Hash (
435               new    =>   'new',
436               scalar =>   'simple',
437               array  =>   'ordered',
438               hash   =>   'mapping',
439               object => [ 'obj_ref', { class=>'FooObject' } ],
440             );
441
442   Class::Maker
443       Distribution
444           CPAN. Last update 7/02.
445
446       Usage
447           Call function with declaration arguments.
448
449       Mechanism
450           Generates and installs closures (I think).
451
452       Instance Type
453           Hash (I think).
454
455       Subclasses Cleanly
456           Unknown.
457
458       Standard Methods
459           Constructor and various scalar and reference accessors.
460
461       Extensible
462           Unknown.
463
464       Comments
465           I haven't yet reviewed this module closely.
466
467   Class::SelfMethods
468       Distribution
469           CPAN. Last update 2/00.
470
471       Usage
472           Inherit; methods created via AUTOLOAD
473
474       Mechanism
475           Generates and installs closures (I think)
476
477       Instance Type
478           Hash.
479
480       Subclasses Cleanly
481           Yes.
482
483       Standard Methods
484           Constructor and scalar/code accessors (see Comments).
485
486       Extensible
487           No.
488
489       Comments
490           Individual objects may be assigned a subroutine that will be called
491           as a method on subsequent accesses. If an instance does not have a
492           value for a given accessor, looks for a method defined with a
493           leading underscore.
494
495   Class::Struct
496       Distribution
497           Included in the standard Perl distribution. Replaces
498           Class::Template.
499
500       Usage
501           Call function with declaration arguments
502
503       Mechanism
504           Assembles and evals code string
505
506       Instance Type
507           Hash or Array
508
509       Subclasses Cleanly
510           No.
511
512       Standard Methods
513           Constructor and various accessors.
514
515       Extensible
516           No.
517
518             package MyObject;
519             use Class::Struct;
520             struct(
521               simple  => '$',
522               ordered => '@',
523               mapping => '%',
524               obj_ref => 'FooObject'
525             );
526
527       Emulator
528           Yes, Class::MakeMethods::Emulator::Struct.
529
530   Class::StructTemplate
531       Distribution
532           CPAN. Last update 12/00.
533
534           No documentation available.
535
536       Usage
537           Unknown.
538
539       Mechanism
540           Unknown.
541
542   Class::Template
543       Distribution
544           CPAN. Out of date.
545
546       Usage
547           Call function with declaration arguments (I think)
548
549       Mechanism
550           Assembles and evals code string (I think)
551
552       Instance Type
553           Hash.
554
555       Subclasses Cleanly
556           Yes. (I think.)
557
558       Standard Methods
559           Constructor and various accessors.
560
561       Extensible
562           No. (I think.)
563
564       Example
565           Usage is similar to Class::Struct:
566
567             package MyObject;
568             use Class::Template;
569             members MyObject {
570               simple  => '$',
571               ordered => '@',
572               mapping => '%',
573               obj_ref => 'FooObject'
574             };
575
576   Class::Virtual
577       Generates methods that fail with a message indicating that they were
578       not implemented by the subclass. (Cf. 'Template::Universal:croak
579       -abstract'.)
580
581       Also provides a list of abstract methods that have not been implemented
582       by a subclass.
583
584       Distribution
585           CPAN. Last update 3/01.
586
587       Extensible
588           Unknown.
589
590       Mechanism
591           Uses Class::Data::Inheritable and installs additional closures.
592
593   CodeGen::PerlBean
594       Distribution
595           CPAN.
596
597       Usage
598           Call function with declaration arguments.
599
600       Mechanism
601           Generates and writes source code to a file.
602
603       Instance Type
604           Hash (I think).
605
606       Subclasses Cleanly
607           Unknown.
608
609       Standard Methods
610           Constructor and various scalar and reference accessors.
611
612       Extensible
613           Unknown.
614
615       Comments
616           I haven't yet reviewed this module closely.
617
618   HTML::Mason::MethodMaker
619       Distribution
620           CPAN.
621
622       Usage
623           Package import with declaration arguments
624
625       Mechanism
626           Generates and installs closures
627
628       Instance Type
629           Hash.
630
631       Standard Methods
632           Scalar accessors.
633
634       Extensible
635           No.
636
637       Example
638             use HTML::Mason::MethodMaker (
639               read_write => [ qw( simple ordered mapping obj_ref ) ]
640             );
641

SEE ALSO

643       See Class::MakeMethods for general information about this distribution.
644
646   Developed By
647         M. Simon Cavalletto, simonm@cavalletto.org
648         Evolution Softworks, www.evoscript.org
649
650   Copyright
651       Copyright 2002 Matthew Simon Cavalletto.
652
653       Portions copyright 2000, 2001 Evolution Online Systems, Inc.
654
655   License
656       You may use, modify, and distribute this document under the same terms
657       as Perl.
658

POD ERRORS

660       Hey! The above document had some coding errors, which are explained
661       below:
662
663       Around line 485:
664           '=item' outside of any '=over'
665
666       Around line 494:
667           You forgot a '=back' before '=head2'
668
669
670
671perl v5.32.1                      2021-01-2M7akeMethods::Docs::RelatedModules(3)
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