/ 
BioPerl-1.6.901
River stage two • 60 direct dependents • 65 total dependents
/ Bio::SearchIO::blasttable

NAME

Bio::SearchIO::blasttable - Driver module for SearchIO for parsing NCBI -m 8/9 format

SYNOPSIS

# do not use this module directly
use Bio::SearchIO;
my $parser = Bio::SearchIO->new(-file   => $file,
                               -format => 'blasttable');

while( my $result = $parser->next_result ) {
}

DESCRIPTION

This module will support parsing NCBI -m 8 or -m 9 tabular output and WU-BLAST -mformat 2 or -mformat 3 tabular output.

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 the Bioperl mailing list. Your participation is much appreciated.

bioperl-l@bioperl.org                  - General discussion
http://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 of the bugs and their resolution. Bug reports can be submitted via the web:

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

AUTHOR - Jason Stajich

Email jason-at-bioperl-dot-org

APPENDIX

The rest of the documentation details each of the object methods. Internal methods are usually preceded with a _

new

Title   : new
Usage   : my $obj = Bio::SearchIO::blasttable->new();
Function: Builds a new Bio::SearchIO::blasttable object 
Returns : an instance of Bio::SearchIO::blasttable
Args    :

next_result

Title   : next_result
Usage   : my $result = $parser->next_result
Function: Parse the next result from the data stream
Returns : L<Bio::Search::Result::ResultI>
Args    : none

start_element

Title   : start_element
Usage   : $eventgenerator->start_element
Function: Handles a start element event
Returns : none
Args    : hashref with at least 2 keys 'Data' and 'Name'

end_element

Title   : start_element
Usage   : $eventgenerator->end_element
Function: Handles an end element event
Returns : none
Args    : hashref with at least 2 keys 'Data' and 'Name'

element

Title   : element
Usage   : $eventhandler->element({'Name' => $name, 'Data' => $str});
Function: Convience method that calls start_element, characters, end_element
Returns : none
Args    : Hash ref with the keys 'Name' and 'Data'

characters

Title   : characters
Usage   : $eventgenerator->characters($str)
Function: Send a character events
Returns : none
Args    : string

_mode

Title   : _mode
Usage   : $obj->_mode($newval)
Function: 
Example : 
Returns : value of _mode
Args    : newvalue (optional)

within_element

Title   : within_element
Usage   : if( $eventgenerator->within_element($element) ) {}
Function: Test if we are within a particular element
          This is different than 'in' because within can be tested
          for a whole block.
Returns : boolean
Args    : string element name

in_element

Title   : in_element
Usage   : if( $eventgenerator->in_element($element) ) {}
Function: Test if we are in a particular element
          This is different than 'in' because within can be tested
          for a whole block.
Returns : boolean
Args    : string element name

start_document

Title   : start_document
Usage   : $eventgenerator->start_document
Function: Handles a start document event
Returns : none
Args    : none

end_document

Title   : end_document
Usage   : $eventgenerator->end_document
Function: Handles an end document event
Returns : Bio::Search::Result::ResultI object
Args    : none

result_count

Title   : result_count
Usage   : my $count = $searchio->result_count
Function: Returns the number of results we have processed
Returns : integer
Args    : none

program_name

Title   : program_name
Usage   : $obj->program_name($newval)
Function: Get/Set the program name
Returns : value of program_name (a scalar)
Args    : on set, new value (a scalar or undef, optional)

_will_handle

Title   : _will_handle
Usage   : Private method. For internal use only.
             if( $self->_will_handle($type) ) { ... }
Function: Provides an optimized way to check whether or not an element of a 
          given type is to be handled.
Returns : Reference to EventHandler object if the element type is to be handled.
          undef if the element type is not to be handled.
Args    : string containing type of element.

Optimizations:

  1. Using the cached pointer to the EventHandler to minimize repeated lookups.

  2. Caching the will_handle status for each type that is encountered so that it only need be checked by calling handler->will_handle($type) once.

This does not lead to a major savings by itself (only 5-10%). In combination with other optimizations, or for large parse jobs, the savings good be significant.

To test against the unoptimized version, remove the parentheses from around the third term in the ternary " ? : " operator and add two calls to $self->_eventHandler().