Mercurial > pub > Impl
annotate Lib/IMPL/DOM/Document.pm @ 214:4683002758aa
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| author | sergey |
|---|---|
| date | Mon, 06 Aug 2012 17:27:47 +0400 |
| parents | 4d0e1962161c |
| children | c6d0f889ef87 |
| rev | line source |
|---|---|
| 49 | 1 package IMPL::DOM::Document; |
| 2 use strict; | |
| 3 use warnings; | |
| 4 | |
| 165 | 5 use parent qw(IMPL::DOM::Node); |
| 49 | 6 |
| 7 __PACKAGE__->PassThroughArgs; | |
| 8 | |
| 9 sub document { | |
| 10 return $_[0]; | |
| 11 } | |
| 12 | |
| 13 sub Create { | |
| 14 my ($this,$nodeName,$class,$refProps) = @_; | |
| 15 | |
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16 if ( ref $class eq 'HASH' ) { |
| 194 | 17 $refProps = $class; |
| 18 $class = undef; | |
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19 } |
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20 |
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21 $class ||= typeof IMPL::DOM::Node; |
| 49 | 22 $refProps ||= {}; |
| 23 | |
| 24 delete $refProps->{nodeName}; | |
| 25 | |
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26 die new IMPL::Exception("class is not specified") unless $class; |
| 49 | 27 return $class->new( |
| 28 nodeName => $nodeName, | |
| 29 document => $this, | |
| 30 %$refProps | |
| 31 ); | |
| 32 } | |
| 33 | |
| 152 | 34 sub save { |
| 194 | 35 my ($this,$writer) = @_; |
| 36 | |
| 37 $writer->xmlDecl(undef,'yes'); | |
| 38 $this->SUPER::save($writer); | |
| 39 $writer->end(); | |
| 152 | 40 } |
| 41 | |
| 49 | 42 { |
| 43 my $empty; | |
| 44 sub Empty() { | |
| 45 return $empty ? $empty : $empty = __PACKAGE__->new(nodeName => 'Empty'); | |
| 46 } | |
| 47 } | |
| 48 | |
| 49 1; | |
| 50 __END__ | |
| 51 | |
| 52 =pod | |
| 53 | |
| 77 | 54 =head1 NAME |
| 55 | |
| 180 | 56 C<IMPL::DOM::Document> DOM документ. |
| 77 | 57 |
| 49 | 58 =head1 DESCRIPTION |
| 59 | |
| 180 | 60 Документ, позволяет создавать узлы определенных типов, что позволяет абстрагироваться |
| 61 от механизмов реального создания объектов. Т.о. например C<IMPL::DOM::Navigator::Builder> | |
| 62 может формировать произвольные документы. | |
| 77 | 63 |
| 64 =head1 SYNOPSIS | |
| 65 | |
| 66 =begin code | |
| 67 | |
| 68 package MyDocument; | |
| 165 | 69 use parent qw(IMPL::DOM::Document); |
| 77 | 70 |
| 71 sub Create { | |
| 194 | 72 my $this = shift; |
| 73 my ($name,$class,$hashProps) = @_; | |
| 74 | |
| 75 if ($class eq 'Info') { | |
| 76 return MyInfo->new($name,$hashProps->{date},$hashProps->{description}); | |
| 77 } else { | |
| 78 # leave as it is | |
| 79 return $this->SUPER::Create(@_); | |
| 80 } | |
| 77 | 81 } |
| 82 | |
| 83 =end code | |
| 84 | |
| 49 | 85 =head1 METHODS |
| 86 | |
| 87 =over | |
| 88 | |
| 77 | 89 =item C< Create($nodeName,$class,$hashProps) > |
| 90 | |
| 180 | 91 Реализация по умолчанию. Создает узел определеннго типа с определенным именем и свойствами. |
| 77 | 92 |
| 93 =begin code | |
| 49 | 94 |
| 77 | 95 sub Create { |
| 194 | 96 my ($this,$nodeName,$class,$hashProps) = @_; |
| 97 | |
| 98 return $class->new ( | |
| 99 nodeName => $nodeName, | |
| 100 document => $this, | |
| 101 %$hashProps | |
| 102 ); | |
| 77 | 103 } |
| 104 | |
| 105 =end code | |
| 49 | 106 |
| 152 | 107 =item C< save($writer) > |
| 108 | |
| 180 | 109 Сохраняет документ в виде XML узла и вызывает C<< $writer->end() >>. |
| 152 | 110 |
| 111 =over | |
| 112 | |
| 113 =item C<$writer> | |
| 114 | |
| 180 | 115 Объект с интерфейсом C<XML::Writer> который будет использован для записи |
| 116 содержимого документа | |
| 152 | 117 |
| 118 =back | |
| 119 | |
| 49 | 120 =back |
| 121 | |
| 122 =cut |