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joko |
1.1 |
# (c) Sound Object Logic 2000-2001 |
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use strict; |
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package Tangram::AbstractHash; |
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use Tangram::Coll; |
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use base qw( Tangram::Coll ); |
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use Carp; |
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sub content |
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{ |
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shift; |
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@{shift()}; |
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} |
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sub demand |
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{ |
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my ($self, $def, $storage, $obj, $member, $class) = @_; |
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print $Tangram::TRACE "loading $member\n" if $Tangram::TRACE; |
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my %coll; |
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if (my $prefetch = $storage->{PREFETCH}{$class}{$member}{$storage->id($obj)}) |
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{ |
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%coll = %$prefetch; |
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} |
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else |
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{ |
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my $cursor = $self->cursor($def, $storage, $obj, $member); |
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for (my $item = $cursor->select; $item; $item = $cursor->next) |
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{ |
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my $slot = shift @{ $cursor->{-residue} }; |
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$coll{$slot} = $item; |
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} |
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} |
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$storage->{scratch}{ref($self)}{$storage->id($obj)}{$member} = { |
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map { $_ => ($coll{$_} && $storage->id( $coll{$_} ) ) } keys %coll }; |
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return \%coll; |
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} |
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