DependentAccessInterface

Interface for AccessibleInterface objects that have an access dependency.

Objects should implement this interface when their access depends on access to another object that implements \Drupal\Core\Access\AccessibleInterface. This interface simply provides the getter method for the access dependency object. Objects that implement this interface are responsible for checking access of the access dependency because the dependency may not take effect in all cases. For instance an entity may only need the access dependency set when it is embedded within another entity and its access should be dependent on access to the entity in which it is embedded.

To check the access to the dependency the object implementing this interface can use code like this: