Bio::DB::BioSQL::SeqAdaptor - DESCRIPTION of Object
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The rest of the documentation details each of the object methods. Internal methods are usually preceded with a _
Title : get_persistent_slots Usage : Function: Get the slots of the object that map to attributes in its respective entity in the datastore. Slots should be methods callable without an argument. Example : Returns : an array of method names constituting the serializable slots Args : the object about to be inserted or updated
Title : get_persistent_slot_values Usage : Function: Obtain the values for the slots returned by get_persistent_slots(), in exactly that order. Example : Returns : A reference to an array of values for the persistent slots of this object. Individual values may be undef. Args : The object about to be serialized. A reference to an array of foreign key objects if not retrievable from the object itself.
Title : get_foreign_key_objects Usage : Function: Gets the objects referenced by this object, and which therefore need to be referenced as foreign keys in the datastore. This implementation takes care of the species. Example : Returns : an array of Bio::DB::PersistentObjectI implementing objects Args : The object about to be inserted or updated, or undef if the call is for a SELECT query. In the latter case return class or interface names that are mapped to the foreign key tables.
Title : attach_foreign_key_objects Usage : Function: Attaches foreign key objects to the given object as far as necessary. This method is called after find_by_XXX() queries, not for INSERTs or UPDATEs. SeqIs have Species in addition. Example : Returns : TRUE on success, and FALSE otherwise. Args : The object to which to attach foreign key objects. A reference to an array of foreign key values, in the order of foreign keys returned by get_foreign_key_objects().
Title : store_children Usage : Function: Inserts or updates the child entities of the given object in the datastore. A Bio::SeqI has annotation and seqfeatures as children. Example : Returns : TRUE on success, and FALSE otherwise Args : The Bio::DB::PersistentObjectI implementing object for which the child objects shall be made persistent.
Title : attach_children Usage : Function: Possibly retrieve and attach child objects of the given object. This is needed when whole object trees are supposed to be built when a base object is queried for and returned. An example would be Bio::SeqI objects and all the annotation objects that hang off of it. This is called by the find_by_XXXX() methods once the base object has been built. A Bio::SeqI has annotation and seqfeatures as children. Example : Returns : TRUE on success, and FALSE otherwise. Args : The object for which to find and to which to attach the child objects.
Title : instantiate_from_row Usage : Function: Instantiates the class this object is an adaptor for, and populates it with values from columns of the row. This implementation calls populate_from_row() to do the real job. Example : Returns : An object, or undef, if the row contains no values Args : A reference to an array of column values. The first column is the primary key, the other columns are expected to be in the order returned by get_persistent_slots(). Optionally, a Bio::Factory::SequenceFactoryI compliant object to be used for creating the object.
Title : populate_from_row Usage : Function: Populates an object with values from columns of the row. Example : Returns : The object populated, or undef, if the row contains no values Args : The object to be populated. A reference to an array of column values. The first column is the primary key, the other columns are expected to be in the order returned by get_persistent_slots().
Title : remove_children Usage : Function: This method is to cascade deletes in maintained objects. We need to undefine the primary keys of all contained feature objects here. Example : Returns : TRUE on success and FALSE otherwise Args : The persistent object that was just removed from the database. Additional (named) parameter, as passed to remove().
These are mostly private or 'protected.' Methods which are in the latter class have this explicitly stated in their documentation. 'Protected' means you may call these from derived classes, but not from outside. Most of these methods cache certain adaptors or otherwise reduce call path and object creation overhead. There's no magic here.
Title : _feat_adaptor Usage : $obj->_feat_adaptor($newval) Function: Get/set cached persistence adaptor for a Bio::SeqFeatureI object In OO speak, consider the access class of this method protected. I.e., call from descendants, but not from outside. Example : Returns : value of _feat_adaptor (a Bio::DB::PersistenceAdaptorI instance) Args : new value (a Bio::DB::PersistenceAdaptorI instance, optional)