owncloud / core

	 * @param Principal $principalBackend

	 * @param IConfig $config

	 */

	public function __construct(IDBConnection $db,

								Principal $principalBackend,

								IConfig $config,

								ISecureRandom $random,

								$legacyMode = false) {

		$this->db = $db;

		$this->principalBackend = $principalBackend;

		$this->sharingBackend = new Backend($this->db, $principalBackend, 'calendar');

		$this->config = $config;

		$this->random = $random;

		$this->legacyMode = $legacyMode;

	}

	/**

	 * Returns a list of calendars for a principal.

	 * @param Principal $principalBackend

	 * @param EventDispatcherInterface $dispatcher

	 */

	public function __construct(IDBConnection $db,

								Principal $principalBackend,

								EventDispatcherInterface $dispatcher = null,

								$legacyMode = false) {

		$this->db = $db;

		$this->principalBackend = $principalBackend;

		$this->dispatcher = $dispatcher;

		$this->sharingBackend = new Backend($this->db, $principalBackend, 'addressbook');

		$this->legacyMode = $legacyMode;

		$this->idCache = new CappedMemoryCache();

	}

	/**

	 * Returns the list of address books for a specific user.