Norbert, I'm currently building the dictionaries myself. I have a specific domain class of mapper for each "message" (JSON). The mapper builder manually builds my domain objects from the dictionary returned by "JSJsonParser parse: aString", when writing creates a Dictionary and sends #asJson to it. E.g. I have a EventBuilder which can build an Event from a JSON string or viceversa. I used NeoJSON in the beggining and it's blazing fast (because it is stream based), but I couldn't get my head around some particular cases (which I don't remember now, sorry). I WILL give another try, but with time to fully understand it. In the Java side of my app, this is one of the simplest things to deal with, manually to read and write, by using JSONObject and JSONArray, there's not more of it than this. Regards, Esteban A. Maringolo 2013/12/5 Norbert Hartl <norbert@hartl.name>:
What would be the best software to map my objects to dictionaries? There are a lot of packages in pharo that deal with JSON somehow. But it seems none does mapping from objects to dictionaries and is standalone. Weâve got
- NeoJSON package . Maps objects to strings directly for performance reason - JSON package. Maps string to JsonObject (subclassed from dictionary) - Voyage magritte based mapper: Closest to what I find useful but buried inside of Voyage. And Iâm not sure it would be easy to factor out this module as a standalone mapper. - Seaside javascript⦠: I forgot what it really does. I often shy away looking at it because I donât want to suck in all the dependencies.
Iâm asking because for me this is an important asset. If we talk about JSON there are three things: Objects, JSON structure (being dictionaries and other collections in pharo) and JSON strings. Writing to another server or to a file producing JSON strings seems to be enough. But using it for another system like MongoDB or ElasticSearch this does not work. Here the common interface seems to be dictionaries. With ElasticSearch mapping dictionaries to JSON and MongoDB mapping dictionaries to BSON. So a good descriptive way to map objects to dictionaries would be a good thing to have.
Any thoughts?
Norbert