Hi Matt,
Matt Sicker wrote:
> I took a look at this yesterday and forgot to reply. Anyways, I agree that
> ImmutablePair should override compareTo() since it can rely on its own
> values not changing, whereas the implementation in Pair isn't as crazy
> since it's mutable.
ImmutablePair is only immutable concerning the referenced objects, it cannot
make any assumptions about those objects' immutability.
StringBuilder builder = new StringBuilder();
ImmutablePair<String, StringBuilder> = new ImmutablePair<>("key", builder);
builder.append("a");
ImmutablePair just guarantees here that you will always have the same
StringBuilder instance.
Cheers,
Jörg
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