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Event::ExecFlow::Scheduler
Abstract class for parallel scheduling

Event::ExecFlow::Scheduler - Abstract class for parallel scheduling


NAME

Event::ExecFlow::Scheduler - Abstract class for parallel scheduling


SYNOPSIS


  #-- Create a new Scheduler object

  my $scheduler = Event::ExecFlow::Scheduler::XYZ->new ( ... );

  #-- Attach scheduler to a group job with parallel execution

  $group_job->set_parallel(1);

  $group_job->set_scheduler($scheduler);

  #-- The following methods gets called by Event::ExecFlow

  #-- at runtime

  $scheduler->schedule_job($job);

  $scheduler->job_finished($job);


DESCRIPTION

This abstract base class represents just an interface which needs to be implemented by custom schedulers for controlling the execution of jobs in a Event::ExecFlow::Group which has the parallel option set.

Event::ExecFlow ships a very simple example for a scheduler which just limits the maximum number of parallel executed jobs: Event::ExecFlow::Scheduler::SimpleMax.


OBJECT HIERARCHY


  Event::ExecFlow

  Event::ExecFlow::Job

  +--- Event::ExecFlow::Job::Group

  +--- Event::ExecFlow::Job::Command

  +--- Event::ExecFlow::Job::Code

  Event::ExecFlow::Frontend

  Event::ExecFlow::Callbacks

  Event::ExecFlow::Scheduler

  +--- Event::ExecFlow::Scheduler::SimpleMax


METHODS

[ FIXME: describe all methods in detail ]


AUTHORS


 Jörn Reder <joern at zyn dot de>


COPYRIGHT AND LICENSE

Copyright 2005-2006 by Jörn Reder.

This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details.

You should have received a copy of the GNU Library General Public License along with this library; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307 USA.

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