StatsStore.php
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StatsStore.php
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	<?php

	namespace Wikimedia\WRStats;

	/**
	* Narrow interface for WRStatsFactory to a memcached-like key-value store.
	*
	* @since 1.39
	*/
	interface StatsStore {
	/**
	* Construct a string key from its components
	*
	* @param string[] $prefix The prefix components.
	* @param array<string\|int> $internals The internal components.
	* @param EntityKey $entity The entity components. If $entity->isGlobal()
	* is true, the key as a whole should be treated as global.
	* @return string
	*/
	public function makeKey( $prefix, $internals, $entity );

	/**
	* Perform a batch of increment operations.
	*
	* @param int[] $values The deltas to add, indexed by the key as returned by makeKey()
	* @param int $ttl The expiry time of any new entries, in seconds. This is
	* a hint, allowing the storage layer to control space usage. Implementing
	* expiry is not a requirement.
	*/
	public function incr( array $values, $ttl );

	/**
	* Perform a batch of delete operations.
	*
	* @param string[] $keys Keys to delete; strings returned by makeKey()
	*/
	public function delete( array $keys );

	/**
	* Perform a batch of fetch operations.
	*
	* @param string[] $keys Keys to get; strings returned by makeKey()
	* @return int[] Integers
	*/
	public function query( array $keys );
	}