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annotate Lib/IMPL/Web/Application/ResourceInterface.pm @ 229:47f77e6409f7

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heavily reworked the resource model of the web application: *some ResourcesContraact functionality moved to Resource +Added CustomResource *Corrected action handlers
author sergey
date Sat, 29 Sep 2012 02:34:47 +0400
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children 6d8092d8ce1b
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1 package IMPL::Web::Application::ResourceInterface;
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2 use strict;
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3
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4 use IMPL::require {
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5 Exception => 'IMPL::Exception',
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6 NotImplException => '-IMPL::NotImplementedException'
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7 };
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8
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9 sub InvokeHttpVerb {
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10 die NotImplException->new();
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11 }
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12
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13 sub FetchChildResource {
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14 die NotImplementedException->new();
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15 }
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16
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17 1;
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18
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19 __END__
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20
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21 =pod
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22
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23 =head1 NAME
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24
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25 C<IMPL::Web::Application::ResourceInterface> - Интерфейс для Web-ресурса.
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26
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27 =head1 SYNOPSIS
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28
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29 =begin code
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30
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31 package MyApp::Web::Resource;
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32 use IMPL::lang qw(:constants);
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33 use IMPL::declare {
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34 require => {
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35 NotAllowedException => 'IMPL::Web::NotAllowedException'
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36 },
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37 base => [
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38 'IMPL::Object' => undef,
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39 'IMPL::Web::Application::ResourceInterface' => undef
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40 ],
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41 props => [
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42 model => PROP_ALL
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43 ]
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44 };
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45
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46 sub InvokeHttpVerb {
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47 my ($this,$verb,$action) = @_;
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48
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49 if($verb eq 'GET') {
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50 return $this->model;
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51 } else {
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52 die NotAllowedException->new(allow => 'GET');
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53 }
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54 }
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55
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56 sub FetchChildResource {
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57 # no child resources
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58 return;
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59 }
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60
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61 =end code
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62
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63 =head1 DESCRIPTION
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64
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65 Данный модуль объявляет только интерфейс, тоесть в нем есть заглушки для функций
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66 которые необходимо реализовать.
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67
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68 Для создания класса, который может быть использоваться для создания Web-ресурсов
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69 нужно унаследовать данный интерфейс и реализовать его методы.
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70
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71 =head1 MEMBERS
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72
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73 =head2 C<InvokeHttpVerb($verb,$action)>
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74
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75 Выполняет операцию над ресурсом и возвращает результат ее выполнения.
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76 Результатом может быть произвольный объект, который будет передан по цепочке
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77 обработчиков приложения для формирования ответа вервера, либо
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78 C<IMPL::Web::HttpResponse>, который описывает (не обязательно полностью) ответ.
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79 В любом случае результат будет передан далее в цепочку обработчиков и может
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80 быть изменен.
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81
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82 =head2 C<FetchChildResource($childId)>
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83
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84 Используется для получения дочернего ресурса (который содержится в данном
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85 контейнере). Метод должен возвращать либо Web-ресурс
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86 C<IMPL::Web::Application::ResourceInterface>, либо C<undef> если дочерний ресурс
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87 не найден.
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88
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89 =cut