Can I get an InputStream that reads the serialization of an object?

[Benson Margulies]

Is there any variation on ObjectWriter or ObjectMapper that gives me back an input stream that reads the json serialization of an object?

[Tatu Saloranta]

Neither ObjectWriter nor ObjectMapper knows the input stream, but context object (DeserializationContext / SerializerProvider) may be able to do so.

They give access to the active JsonParser/JsonGenerator, which in turn have methods `getInputSource()` and `getOutputTarget()`.

-+ Tatu +-

On Sat, Aug 29, 2015 at 4:06 PM, Benson Margulies <ben...@basistech.com> wrote:

Is there any variation on ObjectWriter or ObjectMapper that gives me back an input stream that reads the json serialization of an object?

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[Benson Margulies]

Tatu,

I didn't explain this very well.

Consider a method that accepts an InputStream. I want to start with a
Java object, and derive an InputStream that delivers the Json or
SMILE, so that I don't need to buffer the whole thing somewhere in
order to get an InputStream onto it.

[Tatu Saloranta]

Ok, got it. There is no such functionality. And if you consider the impedance issue (push vs pull), it's unlikely this could be easily and efficiently implemented; serialization side is strictly based on use of Writer/OutputStream, and without features like co-processes (or whatever name this particularly language feature is) it is very difficult to implement in Java.

-+ Tatu +-

[Raji Siloju]

@Benson Margulies, were you able to solve this issue? I am trying to solve a similar problem.