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<?php
/* Icinga Web 2 | (c) 2013 Icinga Development Team | GPLv2+ */
namespace Icinga\Module\Monitoring\Hook;
use Icinga\Module\Monitoring\Timeline\TimeRange;
/**
* Base class for TimeLine providers
*/
abstract class TimelineProviderHook
{
/**
* Return the names by which to group entries
*
* @return array An array with the names as keys and their attribute-lists as values
*/
abstract public function getIdentifiers();
/**
* Return the visible entries supposed to be shown on the timeline
*
* @param TimeRange $range The range of time for which to fetch entries
*
* @return array The entries to display on the timeline
*/
abstract public function fetchEntries(TimeRange $range);
/**
* Return the entries supposed to be used to calculate forecasts
*
* @param TimeRange $range The range of time for which to fetch forecasts
*
* @return array The entries to calculate forecasts with
*/
abstract public function fetchForecasts(TimeRange $range);
}
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