> 
> The protected cache option allows for shared objects to reference
>  isolated objects. Setting the cache isolation to PROTECTED for an
>  entity enables its shared cache. The protected option is mostly the
>  same as the shared option, **except that protected entities can have
>  relationships to isolated entities, where as shared can not.**
> 
> 
> 

what is the meaning of this exception. does this make the isolated entity shared if they have relationship with protected entity