§3.5.(a) Syntax

Using one of the callout modifiers get or set a role method can be bound to a field of the role's base class:

1
getValue -> get value;
2
setValue -> set value;
3
int getValue() -> get int value;

where getValue, setValue are abstract role methods of appropriate signatures and value is a field of the bound base class.
A longer syntax is available, too (see line 3 above), which uses complete signatures. For the left hand side §3.1.(c) applies, for the right hand side, this longer version prepends the field type to the field name.