Mercurial > pub > Impl
annotate Lib/IMPL/Object/List.pm @ 164:eb3e9861a761
SQL traits in progress
| author | wizard |
|---|---|
| date | Mon, 28 Mar 2011 01:36:24 +0400 |
| parents | 6ce1f052b90a |
| children | 4267a2ac3d46 |
| rev | line source |
|---|---|
| 49 | 1 package IMPL::Object::List; |
| 2 use strict; | |
| 3 use warnings; | |
| 4 | |
| 5 use base qw(IMPL::Object::ArrayObject); | |
| 6 use IMPL::Exception; | |
| 7 | |
| 8 sub as_list { | |
| 9 return wantarray ? @{$_[0]} : $_[0]; | |
| 10 } | |
| 11 | |
| 12 sub CTOR { | |
| 13 my ($this,$data) = @_; | |
| 14 | |
| 15 if ($data) { | |
| 16 die new IMPL::InvalidArgumentException("The parameter should be a reference to an array") unless UNIVERSAL::isa($data,"ARRAY"); | |
| 17 @$this = @$data; | |
| 18 } | |
| 19 } | |
| 20 | |
| 21 sub Append { | |
| 22 push @{$_[0]}, @_[1 .. $#_]; | |
| 23 } | |
| 24 | |
| 163 | 25 sub AddLast { |
| 26 push @{$_[0]}, @_[1 .. $#_]; | |
| 27 } | |
| 28 | |
| 49 | 29 sub RemoveLast { |
| 30 return pop @{$_[0]}; | |
| 31 } | |
| 32 | |
| 33 sub AddFirst { | |
| 34 return unshift @{$_[0]}, $_[1]; | |
| 35 } | |
| 36 | |
| 37 sub RemoveFirst { | |
| 38 return shift @{$_[0]}; | |
| 39 } | |
| 40 | |
| 41 sub Count { | |
| 42 return scalar @{$_[0]}; | |
| 43 } | |
| 44 | |
| 45 sub InsertAt { | |
| 46 my ($this,$index,@val) = @_; | |
| 47 | |
| 48 splice @$this,($index||0),0,@val; | |
| 49 } | |
| 50 | |
| 51 sub RemoveAt { | |
| 52 my ($this,$index,$count) = @_; | |
| 53 | |
| 54 $count ||= 1; | |
| 55 | |
| 56 return splice @$this,$index,$count; | |
| 57 } | |
| 58 | |
| 59 sub RemoveItem { | |
| 60 my ($this,$item) = @_; | |
| 61 | |
| 62 @$this = grep $_ != $item, @$this; | |
| 63 | |
| 64 return $this; | |
| 65 } | |
| 66 | |
| 67 sub RemoveItemStr { | |
| 68 my ($this,$item) = @_; | |
| 69 | |
| 70 @$this = grep $_ ne $item, @$this; | |
| 71 | |
| 72 return $this; | |
| 73 } | |
| 74 | |
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75 sub FindItem { |
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76 my ($this,$item) = @_; |
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77 |
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78 for (my $i = 0; $i < @$this; $i++ ) { |
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79 return $i if $this->[$i] == $item |
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80 } |
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81 return undef; |
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82 } |
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83 |
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84 sub FindItemStr { |
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85 my ($this,$item) = @_; |
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86 |
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87 for (my $i = 0; $i < @$this; $i++ ) { |
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88 return $i if $this->[$i] eq $item |
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89 } |
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90 return undef; |
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91 } |
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92 |
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93 sub save { |
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94 my ($this,$ctx) = @_; |
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95 |
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96 $ctx->AddVar( item => $_ ) foreach @$this; |
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97 } |
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98 |
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99 sub restore { |
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100 my ($class,$data,$surrogate) = @_; |
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101 |
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102 my $i = 0; |
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103 |
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104 if ($surrogate) { |
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105 @$surrogate = grep { ($i++)%2 } @$data; |
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106 } else { |
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107 $surrogate = $class->new([grep { ($i++)%2 } @$data]); |
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108 } |
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109 |
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110 return $surrogate; |
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111 } |
| 49 | 112 |
| 113 1; |