I am starting to migrate a custom serialization mechanism to Protocol Buffers. One data type that will be used particularly regularly is `BigDecimal`.
Does anyone know of a good way of serializing this within Protocol Buffers? Our current serialization routine uses `BigDecimal.toPlainString()` for serialization, and `new BigDecimal(String)` for deserialization - I'm assuming there's a better way.
My guess is to define a `BigDecimal` as:
message BDecimal {
required int32 scale = 1;
required BInteger int_val = 2;
}
But I am not too sure how to define `BigInteger` - perhaps using its `toByteArray()` method?
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