The Factory

The OME::Factory class is used to query the database, and to create and retrieve instances of the various OME::DBObject subclasses. The factory object is created automatically by the OME::Session class when a user logs into the OME system. (Sessions and the session manager are described in more details in this other section over here.) The current factory object can always be retrieved with the following statement:

my $factory = OME::Session->instance()->Factory();

As mentioned earlier, the tables used to store the scientific data and metadata in OME are defined by semantic types. The core database types