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1 | <?php |
2 | |
3 | namespace Wikimedia\WRStats; |
4 | |
5 | /** |
6 | * Narrow interface for WRStatsFactory to a memcached-like key-value store. |
7 | * |
8 | * @since 1.39 |
9 | */ |
10 | interface StatsStore { |
11 | /** |
12 | * Construct a string key from its components |
13 | * |
14 | * @param string[] $prefix The prefix components. |
15 | * @param array<string|int> $internals The internal components. |
16 | * @param EntityKey $entity The entity components. If $entity->isGlobal() |
17 | * is true, the key as a whole should be treated as global. |
18 | * @return string |
19 | */ |
20 | public function makeKey( $prefix, $internals, $entity ); |
21 | |
22 | /** |
23 | * Perform a batch of increment operations. |
24 | * |
25 | * @param int[] $values The deltas to add, indexed by the key as returned by makeKey() |
26 | * @param int $ttl The expiry time of any new entries, in seconds. This is |
27 | * a hint, allowing the storage layer to control space usage. Implementing |
28 | * expiry is not a requirement. |
29 | */ |
30 | public function incr( array $values, $ttl ); |
31 | |
32 | /** |
33 | * Perform a batch of delete operations. |
34 | * |
35 | * @param string[] $keys Keys to delete; strings returned by makeKey() |
36 | */ |
37 | public function delete( array $keys ); |
38 | |
39 | /** |
40 | * Perform a batch of fetch operations. |
41 | * |
42 | * @param string[] $keys Keys to get; strings returned by makeKey() |
43 | * @return int[] Integers |
44 | */ |
45 | public function query( array $keys ); |
46 | } |