Bio::Tools::EUtilities::History(3pm)			User Contributed Perl Documentation		      Bio::Tools::EUtilities::History(3pm)

NAME

       Bio::Tools::EUtilities::History - lightweight implementation of HistoryI interface (not bound to filehandles, extraneous methods, etc).

SYNOPSIS

	 #should work for any class which is-a HistoryI

	 if ($obj->has_History) {
	     # do something here
	 }

	 ($webenv, $querykey) = $obj->history;

	 $obj->history($webenv, $querykey);

	 $webenv = $obj->get_webenv;

	 $query_key = $obj->get_query_key;

DESCRIPTION

       This class extends methods for any EUtilDataI implementation allow instances to dealwith NCBI history data (WebEnv and query_key).  These
       can be used as parameters for further queries against data sets stored on the NCBI server, much like NCBI's Entrez search history. These
       are important when one wants to run complex queries using esearch, retrieve related data using elink, and retrieve large datasets using
       epost/efetch.

       This class is the simplest implementation and merely holds data for future queries from any HistoryI. See also
       Bio::Tools::EUtilities::Query (esearch) and Bio::Tools::EUtilities::LinkSet (elink), which also implement HistoryI.

FEEDBACK

   Mailing Lists
       User feedback is an integral part of the evolution of this and other Bioperl modules. Send your comments and suggestions preferably to one
       of the Bioperl mailing lists. Your participation is much appreciated.

	 bioperl-l@lists.open-bio.org		    - General discussion
	 http://www.bioperl.org/wiki/Mailing_lists  - About the mailing lists

   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.

	 https://redmine.open-bio.org/projects/bioperl/

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 _

   history
	Title	 : history
	Usage	 : my ($webenv, $qk) = $hist->history
	Function : Get/Set two-element list of webenv() and query_key()
	Returns  : array
	Args	 : two-element list of webenv, query key

   get_webenv
	Title	 : get_webenv
	Usage	 : my $webenv = $hist->get_webenv
	Function : returns web environment key needed to retrieve results from
		   NCBI server
	Returns  : string (encoded key)
	Args	 : none

   get_query_key
	Title	 : get_query_key
	Usage	 : my $qk = $hist->get_query_key
	Function : returns query key (integer) for the history number for this session
	Returns  : integer
	Args	 : none

   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

perl v5.14.2							    2012-03-02				      Bio::Tools::EUtilities::History(3pm)