1) Validate invariants
A clear and easy to understand mechanism that can validate the deserialized
fields. Does not prevent the use of final fields, as the serialization
framework
will be responsible for setting them. Something along the lines of what
David
suggested:
private static void validate(GetField fields) {
if (fields.getInt("lo") > fields.getInt("hi")) { ... }
}
This could be a “special” method, or annotation driven. TBD.
Note: the validate method is static, so the object instance is not
required to
be created before running the validation.
Sort of...
This is true if the fields participating in the invariant are
primitives. But if they're refs, what do you do? What if you want to
validate something like
count == list.size() // fields are int count, List list
? Then wouldn't GetField.getObject have to deserialize the object
referred to by that field?
