Comment #4 on issue 249 by osfan6313: Default values are not assumed to be
filled in.
http://code.google.com/p/protobuf/issues/detail?id=249
We're using protocol buffers to store user settings, so we want some fields
to be required(for data validation purposes). However, when we first
generate the data we want there to be some default value for these
settings, so that we can have default settings already filled in
automatically.
I could be wrong, but I think that even if I made the field 'optional', and
immediately built the protocol buffer, no information would be set by
default.
Or, to put it another way:
When making a protocol buffer, you don't always want ALL fields to be set,
however some fields MUST have a value. If no user-value is defined, then
the default value is used for that field. For example, if you use a
JOptionPane to show the user some information, you don't always want to
give the user OK and Cancel buttons, because they're not relevant.
However, you always have a Component and a Message as parameters. If
nothing else is provided, then the defaults for the other settings(icon,
title, ok/cancel) buttons are set to the default(none).
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