Bio::IdentifiableI(3pm) | User Contributed Perl Documentation | Bio::IdentifiableI(3pm) |
Bio::IdentifiableI - interface for objects with identifiers
# to test this is an identifiable object $obj->isa("Bio::IdentifiableI") || $obj->throw("$obj does not implement the Bio::IdentifiableI interface"); # Accessors $object_id = $obj->object_id(); $namespace = $obj->namespace(); $authority = $obj->authority(); $version = $obj->version(); # Gets authority:namespace:object_id $lsid = $obj->lsid_string(); # Gets namespace:object_id.version $ns_string = $obj->namespace_string();
This interface describes methods expected on identifiable objects, i.e. ones which have identifiers expected to make sense across a number of instances and/or domains. This interface is modeled after pretty much ubiquitous ideas for names in bioinformatics being
databasename:object_id.version
Example:
swissprot:P012334.2
or:
GO:0007048
The object will also work with LSID proposals which adds the concept of an authority, being the DNS name of the organisation assigning the namespace. See <http://lsid.sourceforge.net/>.
Helper functions are provided to make useful strings:
lsid_string - string complying to the LSID standard namespace_string - string complying to the usual convention of namespace:object_id.version
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These functions are the ones that a specific implementation must define.
Title : object_id Usage : $string = $obj->object_id() Function: a string which represents the stable primary identifier in this namespace of this object. For DNA sequences this is its accession_number, similarly for protein sequences Returns : A scalar Status : Virtual
Title : version Usage : $version = $obj->version() Function: a number which differentiates between versions of the same object. Higher numbers are considered to be later and more relevant, but a single object described the same identifier should represent the same concept Returns : A number Status : Virtual
Title : authority Usage : $authority = $obj->authority() Function: a string which represents the organisation which granted the namespace, written as the DNS name for organisation (eg, wormbase.org) Returns : A scalar Status : Virtual
Title : namespace Usage : $string = $obj->namespace() Function: A string representing the name space this identifier is valid in, often the database name or the name describing the collection Returns : A scalar Status : Virtual
These functions are helper functions that are provided by the interface but can be overridden if so wished
Title : lsid_string Usage : $string = $obj->lsid_string() Function: a string which gives the LSID standard notation for the identifier of interest Returns : A scalar
Title : namespace_string Usage : $string = $obj->namespace_string() Function: a string which gives the common notation of namespace:object_id.version Returns : A scalar
2018-10-27 | perl v5.26.2 |