On Tue, Mar 28, 2023 at 3:24 PM Viktor Szathmáry <phrak...@gmail.com> wrote:
>
> On Mar 28, 2023, at 20:51, Tatu Saloranta <t...@fasterxml.com> wrote:
>
> But as I said, decoding from bytes to chars itself does not require
> allocations, yet.
> So `parser.getTextCharacters()` for example typically avoids
> allocations (except for buffer boundaries,
> long strings etc).
>
>
> So would the following work as intended?
>
> public class JsonInterningDeserializer extends JsonDeserializer<String> {
>
> private final CharsToNameCanonicalizer can =
> CharsToNameCanonicalizer.createRoot();
>
> @Override
> public String deserialize(JsonParser p, DeserializationContext ctxt)
> throws IOException, JacksonException {
> char[] buf = p.getTextCharacters();
> int start = p.getTextOffset();
> int len = p.getTextLength();
> int hash = can.calcHash(buf, start, len);
> return can.findSymbol(buf, start, len, hash);
> }
> }
>
> Thanks,
> Viktor
Impressive!
Yes, I think that shows a simple idea that could work as intended (in
this case, for `String` -valued properties.
-+ Tatu +-
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