Even for GSON: http://www.javacodegeeks.com/2012/04/json-with-gson-and-abstract-classes.html
{ "type": "Circle", "properties": { though I prefer json-io: @type to make it unambigous for any case with instance variable named type and does not add another node to the tree.. On Thu, Feb 12, 2015 at 2:58 PM, S Krish <krishnamachari.sudha...@gmail.com> wrote: > > I get your point .. like GSON we should not type the json string output, > if we want it to adhere abs to spec. > > The saving grace for gson in Java is if you just give the root level > object type, rest of it is automatic typing. We lack that capability in > Pharo. Though there also for types specified as an interface can then > require code assistance in deserializing. > > So either we follow a meta data route, code helper methods, that is needed > for deserializing a JSON as spec or let it have an optional @type tag.. to > make the whole thing automatic > > That way we can be both gson / or any other lib compatible for reading > given format ignoring the extra tag, but helps if given to hydrate the > object. > > > > > On Thu, Feb 12, 2015 at 1:13 PM, Sven Van Caekenberghe <s...@stfx.eu> > wrote: > >> Hi, >> >> I will read a bit about json-io and come back to you. >> >> In any case, JSON is a standard that explicitly excludes typing info, and >> yes I know it has been added in several places. NeoJSON's mission is to >> stay true to the pure spec and to be efficient. Of course, it could be >> extended or subclassed if its original goals remain in place. >> >> BTW, STON is what I think JSON with typing info should be ;-) >> >> Sven >> >> > On 12 Feb 2015, at 06:33, S Krish <krishnamachari.sudha...@gmail.com> >> wrote: >> > >> > >> > >> > Can I extend NeoJSON to be more like json-io. >> > >> > * Object serialization >> > * format synchronization >> > >> > To help make it bidirectional for Pharo to external world serialization >> / deserialization >> > >> > >> > Seems the closest to what is appropriate for Pharo - Scala/ Groovy / >> Java >> > >> > >> > Gson : no type information.. >> > Jackson: painful annotation or workarounds >> > >> > >> >> >> >