aiguofer commented on issue #34778:
URL: https://github.com/apache/arrow/issues/34778#issuecomment-1491080575
@lidavidm I've been struggling with generics and how to store the hook from
`withTransportHook(Consumer<T> hook)` for later use in `.build()`.
Is it safe to assume in the future all builders will be either
`AbstractServerImplBuilder` or `ServerBuilder`? That would make it a lot easier
to do something like:
```
public Builder withTransportHook(Consumer<ServerBuilder<?>> hook) {
this.transportHook = hook;
return this;
}
```
and in `build()`:
```
transportHook.accept(builder);
```
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