CAuthItem

public function __construct($auth,$name,$type,$description='',$bizRule=null,$data=null)
{
    $this->_type=(int)$type;
    $this->_auth=$auth;
    $this->_name=$name;
    $this->_description=$description;
    $this->_bizRule=$bizRule;
    $this->_data=$data;
}

public function addChild($name)
{
    return $this->_auth->addItemChild($this->_name,$name);
}

public function assign($userId,$bizRule=null,$data=null)
{
    return $this->_auth->assign($this->_name,$userId,$bizRule,$data);
}

public function checkAccess($itemName,$params=array())
{
    Yii::trace('Checking permission "'.$this->_name.'"','system.web.auth.CAuthItem');
    if($this->_auth->executeBizRule($this->_bizRule,$params,$this->_data))
    {
        if($this->_name==$itemName)
            return true;
        foreach($this->_auth->getItemChildren($this->_name) as $item)
        {
            if($item->checkAccess($itemName,$params))
                return true;
        }
    }
    return false;
}

public function getAssignment($userId)
{
    return $this->_auth->getAuthAssignment($this->_name,$userId);
}

public function getAuthManager()
{
    return $this->_auth;
}

public function getBizRule()
{
    return $this->_bizRule;
}

public function getChildren()
{
    return $this->_auth->getItemChildren($this->_name);
}

public function getData()
{
    return $this->_data;
}

public function getDescription()
{
    return $this->_description;
}

public function getName()
{
    return $this->_name;
}

public function getType()
{
    return $this->_type;
}

public function hasChild($name)
{
    return $this->_auth->hasItemChild($this->_name,$name);
}

public function isAssigned($userId)
{
    return $this->_auth->isAssigned($this->_name,$userId);
}

public function removeChild($name)
{
    return $this->_auth->removeItemChild($this->_name,$name);
}

public function revoke($userId)
{
    return $this->_auth->revoke($this->_name,$userId);
}

public function setBizRule($value)
{
    if($this->_bizRule!==$value)
    {
        $this->_bizRule=$value;
        $this->_auth->saveAuthItem($this);
    }
}

public function setData($value)
{
    if($this->_data!==$value)
    {
        $this->_data=$value;
        $this->_auth->saveAuthItem($this);
    }
}

public function setDescription($value)
{
    if($this->_description!==$value)
    {
        $this->_description=$value;
        $this->_auth->saveAuthItem($this);
    }
}

public function setName($value)
{
    if($this->_name!==$value)
    {
        $oldName=$this->_name;
        $this->_name=$value;
        $this->_auth->saveAuthItem($this,$oldName);
    }
}