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Man Pages


Manual Reference Pages  -  PIPELINE::DISPATCH (3)

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NAME

Pipeline::Dispatch - dispatcher for pipeline segments

CONTENTS

SYNOPSIS



  use Pipeline::Dispatch;
  my $dispatcher = Pipeline::Dispatch->new();
  $dispatcher->segments();
  $dispatcher->add( Pipeline::Segment->new() );
  $dispatcher->delete( 0 );
  $dispatcher->segment_available && $dispatcher->next()
  my $method = $dispatcher->dispatch_method();



DESCRIPTION

Pipeline::Dispatch simply accepts pipeline segments and does very little with them. It can dispatch segments in order, one by one. It is also capable of altering the way in which it dispatches to each segment, both on a pipeline basis, and on a segment-by-segment basis.

CONSTRUCTOR

new() The new() constructor simply returns a new dispatcher object.

METHODS

segments( [ARRAYREF] ) The segments() method returns the dispatchers list of remaining segments as an array reference. Optionally the ARRAYREF argument can be given to the segments() method, which will set the list.
add( LIST ) The add() method adds one or more segments to the dispatchers segment list.
delete( INTEGER ) The delete() method removes the segment at index INTEGER from the list of segments.
segment_available() The segment_available() method returns true or false, depending on whether or not there is a segment available to dispatch to.
next( [ Pipeline ] ) The next() method dispatches the next segment in the segment list. It optionally takes a Pipeline object that is handed down to the segment.
dispatch_method( [STRING] ) The dispatch_method() method gets and sets the method name to call globally on each segment for dispatch. Individual segments can override this if they set dispatch_method themselves.
dispatched_segments( [ARRAYREF] ) The dispatched_segments() method gets and sets the list of segments that have already been dispatched. Used by the reset() method, and probably should not be called by the user..
reset() <reset()> puts the dispatcher back into an undispatched state - all the segments are available for dispatch again.

SEE ALSO

Pipeline::Segment Pipeline

AUTHOR

James A. Duncan <jduncan@fotango.com>

COPYRIGHT

Copyright 2003 Fotango Ltd. All Rights Reserved.

This software is released under the same terms as Perl itself.

http://opensource.fotango.com

POD ERRORS

Hey! <B>The above document had some coding errors, which are explained below:B>
Around line 223: =cut found outside a pod block. Skipping to next block.
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perl v5.20.3 PIPELINE::DISPATCH (3) 2004-08-09

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