public function save() {
		$retval = false;

		/**
		 * Fires before the current notification item gets saved.
		 *
		 * Please use this hook to filter the properties above. Each part will be passed in.
		 *
		 * @since 2.0.0
		 *
		 * @param BP_Notifications_Notification $value Current instance of the notification item being saved. Passed by reference.
		 */
		do_action_ref_array( 'bp_notification_before_save', array( &$this ) );

		$data = array(
			'user_id'           => $this->user_id,
			'item_id'           => $this->item_id,
			'secondary_item_id' => $this->secondary_item_id,
			'component_name'    => $this->component_name,
			'component_action'  => $this->component_action,
			'date_notified'     => $this->date_notified,
			'is_new'            => $this->is_new,
		);
		$data_format = array( '%d', '%d', '%d', '%s', '%s', '%s', '%d' );

		// Update.
		if ( ! empty( $this->id ) ) {
			$result = self::_update( $data, array( 'ID' => $this->id ), $data_format, array( '%d' ) );

		// Insert.
		} else {
			$result = self::_insert( $data, $data_format );
		}

		// Set the notification ID if successful.
		if ( ! empty( $result ) && ! is_wp_error( $result ) ) {
			global $wpdb;

			$this->id = $wpdb->insert_id;
			$retval   = $wpdb->insert_id;
		}

		/**
		 * Fires after the current notification item gets saved.
		 *
		 * @since 2.0.0
		 *
		 * @param BP_Notifications_Notification $value Current instance of the notification item being saved.
		 *                                             Passed by reference.
		 */
		do_action_ref_array( 'bp_notification_after_save', array( &$this ) );

		// Return the result.
		return $retval;
	}