DependencyStore.php

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<?php
namespace Wikimedia\DependencyStore;
 
abstract class DependencyStore {
    protected const KEY_PATHS = 'paths';
    protected const KEY_AS_OF = 'asOf';
 
    public function newEntityDependencies( array $paths = [], $asOf = null ) {
        return [ self::KEY_PATHS => $paths, self::KEY_AS_OF => $asOf ];
    }
 
    final public function retrieve( $type, $entity ) {
        return $this->retrieveMulti( $type, [ $entity ] )[$entity];
    }
 
    abstract public function retrieveMulti( $type, array $entities );
 
    final public function store( $type, $entity, array $data, $ttl ) {
        $this->storeMulti( $type, [ $entity => $data ], $ttl );
    }
 
    abstract public function storeMulti( $type, array $dataByEntity, $ttl );
 
    abstract public function remove( $type, $entities );
}