EntityCache.php

Go to the documentation of this file.

<?php

namespace Elgg\Cache;

use ElggCache;
use ElggEntity;
use ElggSession;

class EntityCache {

    const MAX_SIZE = 256;

    private $session;

    private $cache;

    private $size = 0;

    public function __construct(ElggSession $session, ElggCache $cache) {
        $this->session = $session;
        $this->cache = $cache;
    }

    public function load($guid) {
        return $this->cache->load((int) $guid);
    }

    public function save(ElggEntity $entity) {
        if (!$entity->guid || !$entity->isCacheable()) {
            return;
        }

        if ($this->size > self::MAX_SIZE) {
            // Don't store too many or we'll have memory problems
            return;
        }

        $this->cache->save($entity->guid, $entity);
        $this->size++;
    }

    public function delete($guid) {
        if (!$guid) {
            return;
        }

        $entity = $this->cache->load($guid);
        if (!$entity instanceof ElggEntity) {
            return;
        }

        $this->cache->delete($guid);
        $this->size--;
    }

    public function clear() {
        $this->cache->clear();
        $this->size = 0;
    }

}