entitysettings.php

См. документацию.

<?php
namespace Bitrix\Main\Filter;
 
abstract class EntitySettings extends Settings
{
    const FLAG_NONE = 0;

    protected $flags = 0;
 
    function __construct(array $params)
    {
        parent::__construct($params);
 
        $this->flags = isset($params['flags'])
            ? (int)$params['flags'] : self::FLAG_NONE;
    }

    abstract public function getEntityTypeName();

    abstract public function getUserFieldEntityID();

    public function checkFlag($flag)
    {
        return ($this->flags & $flag) === $flag;
    }
}