92 lines
3 KiB
PHP
92 lines
3 KiB
PHP
<?php
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/**
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* Job queue task description interface
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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*/
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/**
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* Interface for serializable objects that describe a job queue task
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*
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* A job specification can be inserted into a queue via JobQueue::push().
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* The specification parameters should be JSON serializable (e.g. no PHP classes).
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* Whatever queue the job specification is pushed into is assumed to have job runners
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* that will eventually pop the job specification from the queue, construct a RunnableJob
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* instance from the specification, and then execute that instance via RunnableJob::run().
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*
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* Job classes must have a constructor that takes a Title and a parameter array, except
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* when they also implement GenericParameterJob in which case they must only take an array.
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* When reconstructing the job from the job queue, the value returned from getParams() will
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* be passed in as the constructor's array parameter; the title will be constructed from
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* the parameter array's `namespace` and `title` fields (when these are omitted, some
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* fallback title will be used).
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*
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* @ingroup JobQueue
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* @since 1.23
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*/
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interface IJobSpecification {
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/**
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* @return string Job type that defines what sort of changes this job makes
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*/
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public function getType();
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/**
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* @return array Parameters that specify sources, targets, and options for execution
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*/
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public function getParams();
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/**
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* @return int|null UNIX timestamp to delay running this job until, otherwise null
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*/
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public function getReleaseTimestamp();
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/**
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* @return bool Whether only one of each identical set of jobs should be run
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*/
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public function ignoreDuplicates();
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/**
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* Subclasses may need to override this to make duplication detection work.
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* The resulting map conveys everything that makes the job unique. This is
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* only checked if ignoreDuplicates() returns true, meaning that duplicate
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* jobs are supposed to be ignored.
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*
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* @return array Map of key/values
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*/
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public function getDeduplicationInfo();
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/**
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* @see JobQueue::deduplicateRootJob()
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* @return array
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* @since 1.26
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*/
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public function getRootJobParams();
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/**
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* @see JobQueue::deduplicateRootJob()
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* @return bool
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* @since 1.22
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*/
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public function hasRootJobParams();
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/**
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* @see JobQueue::deduplicateRootJob()
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* @return bool Whether this is job is a root job
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*/
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public function isRootJob();
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}
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