The abstract supertype of all types with a well-defined
notion of identity. Values of type
Identifiable may be
compared using the
=== operator to determine if they are
references to the same object instance.
For the sake of convenience, this interface defines a default implementation of value equality equivalent to identity. Of course, subtypes are encouraged to refine this implementation.
no type hierarchy
no supertypes hierarchy
|Attributes inherited from: |
Identity equality comparing the identity of the two
values. May be refined by subtypes for which value
equality is more appropriate. Implementations must
respect the constraint that if