Let's say I have a view table. And I want to get data from it to an entity. Can I (and how) create entity class to do that (no save operation needed)? I just want to display them.
There is nothing special in querying a view — it's just a virtual table. Set the table of your entity this way and enjoy:
/**
* @ORM\Entity
* @ORM\Table(name="your_view_table")
*/
class YourEntity {
// ...
}