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74 lines
1.5 KiB
74 lines
1.5 KiB
package Koha::MetadataIterator;
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# This contains an iterator over biblio and authority records
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# Copyright 2014 Catalyst IT
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#
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# This file is part of Koha.
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#
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# Koha is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# Koha is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Koha; if not, see <http://www.gnu.org/licenses>.
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=head1 NAME
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Koha::MetadataIterator - iterates over records
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=head1 DESCRIPTION
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This provides a fairly generic iterator that will return records provided
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by a function.
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=head1 SYNOPSIS
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use Koha::MetadataIterator;
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my $next_func = sub {
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# something that'll return each record
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};
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my $iterator = Koha::MetadataIterator->new($next_func);
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while ( my $record = $iterator->next() ) {
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# do something with $record
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}
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=head1 METHODS
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=cut
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use Modern::Perl;
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=head2 new
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my $it = new($next_func);
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Takes a function that will provide the next bit of data.
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=cut
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sub new {
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my ( $class, $next_func ) = @_;
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bless { next_func => $next_func, }, $class;
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}
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=head2 next()
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Provides the next record.
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=cut
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sub next {
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my ($self) = @_;
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return $self->{next_func}->();
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}
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1;
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