Abtract interface methods for accessing Item information from any Item-containing class. This pertains to either DocSums or to Items themselves (which can be layered).
version 1.76
# Implement ItemContainerI
# $foo is any ItemContainerI (current implementations are DocSum and Item itself)
while (my $item = $foo->next_Item) { # iterate through contained Items
# do stuff here
}
@items = $foo->get_Items; # all Items in the container (hierarchy intact)
@items = $foo->get_all_Items; # all Items in the container (flattened)
@items = $foo->get_Items_by_name('bar'); # Specifically named Items
($content) = $foo->get_contents_by_name('bar'); # content from specific Items
($type) = $foo->get_type_by_name('bar'); # data type from specific Items
DocSum data, as returned from esummary, normally is a simple list of item-content-content_type groups. However, items can also contain nested data to represent more complex data (such as structural data). This interface describes the basic methods to generically retrieve the next layer of Item data. For convenience classes may describe more specific methods, but they should be defined in terms of this interface and it's methods.
Title : next_Item
Usage : while (my $item = $docsum->next_Item) {...}
Function : iterates through Items (nested layer of Item)
Returns : single Item
Args : [optional] single arg (string)
'flatten' - iterates through a flattened list ala
get_all_DocSum_Items()
Title : get_Items Usage : my @items = $docsum->get_Items Function : returns list of, well, Items Returns : array of Items Args : none
Title : get_all_Items
Usage : my @items = $docsum->get_all_Items
Function : returns flattened list of all Item objects (Items, ListItems,
StructureItems)
Returns : array of Items
Args : none
Note : items are added top-down (similar order to using nested calls)
in original list order.
1 2 7 8
Item - Item - Item - Item ...
|
| 3 6
ListItem - ListItem
|
| 4 5
Structure - Structure
Title : get_all_names Usage : my @names = get_all_names() Function : Returns an array of names for all Item(s) in DocSum. Returns : array of unique strings Args : none
Title : get_Items_by_name
Usage : my @items = get_Items_by_name('CreateDate')
Function : Returns named Item(s) in DocSum (indicated by passed argument)
Returns : array of Item objects
Args : string (Item name)
Title : get_contents_by_name
Usage : my ($data) = $eutil->get_contents_by_name('CreateDate')
Function : Returns content for named Item(s) in DocSum (indicated by
passed argument)
Returns : array of values (type varies per Item)
Args : string (Item name)
Title : get_type_by_name
Usage : my $data = get_type_by_name('CreateDate')
Function : Returns data type for named Item in DocSum (indicated by
passed argument)
Returns : scalar value (string) if present
Args : string (Item name)
User feedback is an integral part of the evolution of this and other Bioperl modules. Send your comments and suggestions preferably to the Bioperl mailing list. Your participation is much appreciated.
bioperl-l@bioperl.org - General discussion https://bioperl.org/Support.html - 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 of the bugs and their resolution. Bug reports can be submitted via the web:
https://github.com/bioperl/bio-eutilities/issues
Chris Fields <cjfields@bioperl.org>
This software is copyright (c) 2006-2013 by Chris Fields.
This software is available under the same terms as the perl 5 programming language system itself.