You should be able to pass a builder to some method, and have the method
modify some value of the builder just fine.
Modifying a value in a sub-message is a bit more inconvenient, but still
doable. If you have some type Bar in type Foo like:
message Bar {
optional int32 a = 1;
optional int32 b = 2;
}
message Foo {
optional Bar bar = 1;
}
Foo.Builder builder;
builder.setBar(builder.getBar().toBuilder().setA(...).build());
Would that work for you?
On Wed, Dec 16, 2009 at 9:24 AM, Mark <[email protected]> wrote:
> I wish I could pass a builder object to a method and have the method
> modify either a value of the builder or a value of a sub-message in
> the builder!
>
> I came across this thread, which described exactly the problem I have.
> The Car/Engine example in the thread is perfectly illustrative of my
> scenario.
>
>
> http://groups.google.com/group/protobuf/browse_thread/thread/1699791071e92c83/fc77205a755721f0
>
> Has anyone else been in this same situation? What have you done to
> ameliorate the problem?
>
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