Faster Json parser
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wrote on 24 Mar 2019, 22:13 last edited by TheEnigmist
Is the builtin Json parser faster than a 3th party library? Is it possible to parse a JSON string into a class like you can do, for example, with GSON Java? (gson.fromJson(json, Foo.class);
Or manually navigate through JSON is the fastest way to parse it into a class?
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Hi
That depends on what library you compare it against.
It wont likely win over say
https://github.com/Tencent/rapidjson
However, if you end up converting to /from QString to use it in the app, it might be costly.
There is no support for automatic (de)serialization. You have to write that manually. -
Hi
That depends on what library you compare it against.
It wont likely win over say
https://github.com/Tencent/rapidjson
However, if you end up converting to /from QString to use it in the app, it might be costly.
There is no support for automatic (de)serialization. You have to write that manually.wrote on 24 Mar 2019, 22:39 last edited by@mrjj said in Faster Json parser:
Hi
That depends on what library you compare it against.
It wont likely win over say
https://github.com/Tencent/rapidjson
However, if you end up converting to /from QString to use it in the app, it might be costly.
There is no support for automatic (de)serialization. You have to write that manually.Well I get a JSON string from a file or from network so yes I think that manually parsing is better!
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@mrjj said in Faster Json parser:
Hi
That depends on what library you compare it against.
It wont likely win over say
https://github.com/Tencent/rapidjson
However, if you end up converting to /from QString to use it in the app, it might be costly.
There is no support for automatic (de)serialization. You have to write that manually.Well I get a JSON string from a file or from network so yes I think that manually parsing is better!
wrote on 25 Mar 2019, 11:23 last edited by@TheEnigmist
Do you only ever parse a given piece of JSON once, or do you repeatedly re-parse the same JSON? This may be blindingly obvious depending on your competence, but if you do re-parse then caching the result for re-use will be a big saving.... -
@TheEnigmist
Do you only ever parse a given piece of JSON once, or do you repeatedly re-parse the same JSON? This may be blindingly obvious depending on your competence, but if you do re-parse then caching the result for re-use will be a big saving....wrote on 25 Mar 2019, 18:51 last edited by@JonB said in Faster Json parser:
@TheEnigmist
Do you only ever parse a given piece of JSON once, or do you repeatedly re-parse the same JSON? This may be blindingly obvious depending on your competence, but if you do re-parse then caching the result for re-use will be a big saving....I parse it totally and it changes over time so when I receive it again it has new values.
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