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Summary

Bio::Tools::EUtilities::Info::LinkInfo - class for storing einfo link data

Package variables

Inherit

Bio::Root::Root Bio::Tools::EUtilities::EUtilDataI

Synopsis

    ## should not create instance directly; Bio::Tools::EUtilities does this ##

    # get a LinkInfo object using Bio:Tools::EUtilities    
    print "Link name: ",$link->get_link_name,"\n";
    print "Link name: ",$link->get_link_menu_name,"\n";
    print "Link desc: ",$link->get_link_description,"\n";
    print "DBFrom: ",$link->get_dbfrom,"\n"; # database linked from
    print "DBTo: ",$link->get_dbto,"\n"; # database linked to

Description

This class handles data output (XML) from both einfo and elink, and centers on
describing data that either describes how NCBI databases are linked together
via link names, or how databases are linked to outside databases (LinkOut).
Further documentation for Link and Field subclass methods is included below.
For more information on einfo see:

   http://eutils.ncbi.nlm.nih.gov/entrez/query/static/einfo_help.html

Methods

Methods description

 Title    : new
 Note     : *** should not be called by end-users ***  
 Usage    : my $ct = Bio::Tools::EUtilities::Info::LinkInfo;
 Function : returns new LinkInfo instance
 Returns  : Bio::Tools::EUtilities::Info::LinkInfo instance
 Args     : none (all data added via _add_data, most methods are getters only)

 Title    : get_database
 Usage    : my $db = $info->get_database;
 Function : returns single database name (eutil-compatible).  This is the
            queried database. For elinks (which have 'db' and 'dbfrom')
            this is equivalent to db/dbto (use get_dbfrom() to for the latter)
 Returns  : string
 Args     : none

 Title    : get_dbfrom
 Usage    : my $origdb = $link->get_dbfrom;
 Function : returns referring database
 Returns  : string
 Args     : none
 Note     :

 Title    : get_link_name
 Usage    : $ln = $link->get_link_name;
 Function : returns raw link name (eutil-compatible)
 Returns  : string
 Args     : none

 Title    : get_link_description
 Usage    : $desc = $link->get_link_description;
 Function : returns the (more detailed) link description
 Returns  : string
 Args     : none

 Title    : get_link_menu_name
 Usage    : my $mn = $link->get_link_menu_name;
 Function : returns formal menu name
 Returns  : string
 Args     : none

 Title    : get_priority
 Usage    : my $mn = $link->get_priority;
 Function : returns priority ranking
 Returns  : integer
 Args     : none
 Note     : only set when using elink and cmd set to 'acheck'

 Title    : get_html_tag
 Usage    : my $tag = $link->get_html_tag;
 Function : returns HTML tag
 Returns  : string
 Args     : none
 Note     : only set when using elink and cmd set to 'acheck'

 Title    : get_url
 Usage    : my $url = $link->get_url;
 Function : returns URL string; note that the string isn't usable directly but
            has the ID replaced with the tag <@UID@>
 Returns  : string
 Args     : none
 Note     : only set when using elink and cmd set to 'acheck'

 Title    : to_string
 Usage    : $foo->to_string()
 Function : converts current object to string
 Returns  : none
 Args     : (optional) simple data for text formatting
 Note     : Used generally for debugging and for various print methods

Methods code

sub new {

    my ($class, @args) = @_;
    my $self = $class->SUPER::new(@args);
    my $eutil = $self->_rearrange([qw(EUTIL)], @args);
    $eutil ||= 'einfo';
    $self->eutil($eutil);
    $self->datatype('linkinfo');
    return $self;

}

sub get_database {

    return shift->{'_dbto'};

}

sub get_db {

    return shift->get_database;

}

sub get_dbto {

    return shift->get_database;

}

sub get_dbfrom {

 return shift->{'_dbfrom'}

}

sub get_link_name {

    my $self = shift;
    if ($self->eutil eq 'elink') {
        return $self->{'_linkname'}
    } else {
        return $self->{'_name'}
    }

}

sub get_link_description {

 return shift->{'_description'}

}

sub get_link_menu_name {

    my $self = shift;
    return $self->eutil eq 'elink' ? $self->{'_menutag'} : $self->{'_menu'};

}

sub get_priority {

 return shift->{'_priority'}

}

sub get_html_tag {

 return shift->{'_htmltag'}

}

sub get_url {

 return shift->{'_url'}

}

sub _add_data {

    my ($self, $simple) = @_;
    map { $self->{'_'.lc $_} = $simple->{$_} unless ref $simple->{$_}} keys %$simple;

}

sub to_string {

    my $self = shift;
    my $level = shift || 0;
    my $pad = 20 - $level;
    #        order     method                    name
    my %tags = (1 => ['get_link_name'         => 'Link Name'],
                2 => ['get_link_description'  => 'Description'],
                3 => ['get_dbfrom'            => 'DB From'],
                4 => ['get_dbto'              => 'DB To'],
                5 => ['get_link_menu_name'    => 'Menu Name'],
                6 => ['get_priority'          => 'Priority'],
                7 => ['get_html_tag'          => 'HTML Tag'],
                8 => ['get_url'               => 'URL'],
                );
    my $string = '';
    for my $tag (sort {$a <=> $b} keys %tags) {
        my ($m, $nm) = ($tags{$tag}->[0], $tags{$tag}->[1]);
        my $content = $self->$m();
        next unless $content;
        $string .= sprintf("%-*s%-*s%s\n",
            $level, '',
            $pad, $nm,
            $self->_text_wrap(':',
                 ' ' x ($pad).':',
                 $content ));
    }
    return $string;
}

1;

}

General documentation

User feedback is an integral part of the evolution of this and other Bioperl
modules. Send your comments and suggestions preferably to one of the Bioperl
mailing lists. Your participation is much appreciated.

  bioperl-l@lists.open-bio.org               - General discussion
  http://www.bioperl.org/wiki/Mailing_lists  - About the mailing lists

Please direct usage questions or support issues to the mailing list:
bioperl-l@bioperl.org
rather than to the module maintainer directly. Many experienced and
reponsive experts will be able look at the problem and quickly
address it. Please include a thorough description of the problem
with code and data examples if at all possible.

Report bugs to the Bioperl bug tracking system to help us keep track the bugs
and their resolution. Bug reports can be submitted via the web.

  https://redmine.open-bio.org/projects/bioperl/

Email cjfields at bioperl dot org

The rest of the documentation details each of the object methods. Internal
methods are usually preceded with a _