Defines a Java field accessor.
setup-field-accessor name class-name field-name static-p &optional is-final => result, error
A condition or
setup-field-accessor defines a field accessor for a field in a Java class.
class-name must name a Java class.
field-name must be a field name.
static-p specifies whether the field is static or not.
is-final specifies whether the field is final (read-only) or not.
setup-field-accessor sets the symbol function of name to a function that reads the value of the field. If is-final is
nil, it also defines
) as the setter.
The arguments for the getter and setter are determined by the value of static-p. If static-p is non-nil, the getter takes no arguments and the setter takes the new value. If static-p is
nil, the getter takes that object from which to get the value, and the setter gets the value and the object.
setup-field-accessor looks up the field definition in Java, and if the definition is incorrect returns
nil and the condition as the second value.
In general, accessing fields should be avoided, because they are typically a less well-defined and implemented interface than methods, but sometimes it is necessary.
LispWorks User Guide and Reference Manual - 20 Sep 2017