data::stream::bulk::doneflag(3pm) [debian man page]

Data::Stream::Bulk::DoneFlag(3pm)			User Contributed Perl Documentation			 Data::Stream::Bulk::DoneFlag(3pm)

NAME

       Data::Stream::Bulk::DoneFlag - Implement the "is_done" method in terms of a flag

VERSION

       version 0.11

SYNOPSIS

	       package Data::Stream::Bulk::Blah;
	       use Moose;

	       with qw(Data::Stream::Bulk::DoneFlag);

	       sub get_more {
		       if ( my @more = more() ) {
			       return @more;
		       } else {
			       return;
		       }
	       }

DESCRIPTION

       This role implements the "Data::Stream::Bulk" core API in terms of one method ("get_more").

       As a convenience it calls "finished" when the stream is exhausted, so that cleanup may be done.

       This is used by classes like Data::Stream::Bulk::DBI, Data::Stream::Bulk::Callback.

METHODS

       is_done
	   Returns the state of the iterator.

       next
	   As long as the iterator is not yet done, calls "get_more".

	   If "get_more" returned a false value instead of an array reference then "done" is set, "finished" is called, and this "next" does
	   nothing on subsequent calls.

       finished
	   A noop by default. Can be overridden if so desired.

REQUIRED_METHODS
       get_more
	   Returns the next block of data as an array ref, or a false value if no items are left.

AUTHOR

       Yuval Kogman <nothingmuch@woobling.org>

COPYRIGHT AND LICENSE

       This software is copyright (c) 2012 by Yuval Kogman.

       This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.

perl v5.14.2							    2012-02-14					 Data::Stream::Bulk::DoneFlag(3pm)