| Bio::Phylo::Meta - Single predicate/object annotation, attached to an xml-writable subject |
use Bio::Phylo::Factory; my $fac = Bio::Phylo::Factory->new; my $base = 'http://8ball.sdsc.edu:6666/treebase-web/PhyloWS/tree/'; my $proj = $fac->create_project->add_meta( $fac->create_meta( '-namespaces' => { 'cdao' => 'http://evolutionaryontology.org#' }, '-triple' => { 'cdao:hasMeta' => $fac->create_meta( '-namespaces' => { 'cdao' => 'http://evolutionaryontology.org#' }, '-triple' => { 'cdao:has_External_Reference' => $base . 'TreeBASE:2602' } ) } ) );
To comply with the NeXML standard (http://www.nexml.org), Bio::Phylo implements metadata annotations which consist conceptually of RDF triples where the subject is a container object that subclasses of the Bio::Phylo::Util::XMLWritable manpage, and the predicate and object are defined in this class.
The objects of the triples provided by this class can be of any simple type (string, number) or one of the XML::DOM manpage, the XML::GDOME manpage, the XML::LibXML manpage, the XML::Twig manpage, the XML::DOM2 manpage, the XML::DOMBacked manpage, the XML::Handler manpage, the XML::Element manpage, the XML::API manpage, the XML::Code manpage or the XML::XMLWriter manpage or the RDF::Core::Model manpage.
When serialized, the Bio::Phylo::Meta object in NeXML is typically written out as an element called 'meta', with RDFa compliant attributes.
new()
Type : Constructor Title : new Usage : my $anno = Bio::Phylo::Meta->new; Function: Initializes a Bio::Phylo::Meta object. Returns : A Bio::Phylo::Meta object. Args : optional constructor arguments are key/value pairs where the key corresponds with any of the methods that starts with set_ (i.e. mutators) and the value is the permitted argument for such a method. The method name is changed such that, in order to access the set_value($val) method in the constructor, you would pass -value => $val
set_triple()
Populates the triple, assuming that the invocant is attached to a subject.
Type : Mutator Title : set_triple Usage : $meta->set_triple( $predicate, $object ); Function: Populates the triple. Returns : Modified object. Args : $predicate - a CURIE whose namespace prefix must have been bound previously using $meta->set_namespaces( $prefix, $uri ); $object - any of the valid object types: a number, a string, a url, a nested annotation or anything that can be adapted by Bio::Phylo::Meta::XMLLiteral
get_object()
Returns triple object
Type : Accessor Title : get_object Usage : my $val = $anno->get_object; Function: Returns triple object Returns : A triple object Args : NONE
Annotation objects are combined into a dictionary.
This object inherits from the Bio::Phylo::Util::XMLWritable manpage, so methods defined there are also applicable here.
Also see the manual: the Bio::Phylo::Manual manpage and http://rutgervos.blogspot.com.
$Id: Annotation.pm 1040 2009-05-28 04:26:49Z rvos $
| Bio::Phylo::Meta - Single predicate/object annotation, attached to an xml-writable subject |