Bio::Tools::EUtilitiesUsertContributed PeBio::Tools::EUtilities::EUtilDataI(3)NAMEBio::Tools::EUtilities::EUtilDataI - eutil data object interface
SYNOPSIS
# say you had some data in a hash ref ($data) and wanted to create hierarchies
# of object using the same interface, starting with the topmost...
# $object is a Bio::Tools::EUtilities::EUtilDataI instance
$object->_add_data($data);
# in _add_data()... sort through keys and create subobjects as needed
if ($key eq 'foo') {
my $sub = Bio::Tools::EUtilities::FooData->new(-eutil => 'efoo',
-type => 'foo');
$sub->_add_data($subdata);
# store into parent object as needed...
...
}
# access stored data
while (my $sub = $parent->next_Foo) {...}
DESCRIPTION
This is a simple interface which allows creation of simple typed object
hierarchies. Single layers can be accessed via simple iterators (next_*
methods) or retrieved all at once (get_*) methods; nested data can be
iterated through nested iterators for each object, or retrieved using
get_all_* methods.
This interface defines common methods required for all eutil data-
holding objects: _add_data(), eutil(), and type(). It also specifies
inheriting interface classes use at least one of three methods:
get_ids(), get_term(), or get_database(), which are the three types of
data that eutils mainly centers on.
Generally, eutil() is the Bio::Tools::EUtilities parser used to set the
data. Similarly, datatype() is the specific data type for the class.
Implementations which rely on subclasses to store data and have
iterators should also define a generalized rewind() method that (by
default) rewinds all iterators to the start. Args passed can specify
exactly which iterator to rewind and (if possible) recursively rewind
nested object iterators.
As the method implies, _add_data() is a private method that adds data
chunks to the object and sets internal parameters for the various data
objects. Methods corresponding to the data type simply return the set
data or iterate through the data sets if the values are more complex.
Data can alternatively be passed through the object constructor.
Support
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.
Reporting Bugs
Report bugs to the Bioperl bug tracking system to help us keep track
the bugs and their resolution. Bug reports can be submitted via the
web.
http://bugzilla.open-bio.org/
AUTHOR
Email cjfields at bioperl dot org
APPENDIX
The rest of the documentation details each of the object methods.
Internal methods are usually preceded with a _
eutil
Title : eutil
Usage : $eutil->$foo->eutil
Function : Get/Set eutil
Returns : string
Args : string (eutil)
Throws : on invalid eutil
datatype
Title : type
Usage : $type = $qd->datatype;
Function: retrieve simple data type object holds (linkset, docsum, item, etc)
Returns : string (eutil name)
Args : none
Note : this is probably more useful for devs than for users as a way to keep
track of the various types of modules used
rewind
Title : rewind
Usage : $esum->rewind
Function : rewinds the requested iterator
Returns : none
Args : [OPTIONAL] may include 'all', 'recursive', etc.
_add_data
Title : _add_data
Usage : $foo->_add_data($data)
Function : adds data to current object as a chunk
Returns : none
Args : hash ref containing relevant data
to_string
Title : to_string
Usage : $foo->to_string()
Function : converts current object to string
Returns : none
Args : (optional) simple data for text formatting
Note : Used generally for debugging and for the print_* methods
_text_wrap
Title : _text_wrap
Usage : $foo->_text_wrap($string)
Function : private internal wrapper for Text::Wrap::wrap
Returns : string
Args : string
Note : Internal use only. Simple wrapper method.
perl v5.14.12011-07Bio::Tools::EUtilities::EUtilDataI(3)
