upickle: Handling of lists

[Björn Julander]

I want to unpickle a json like:

"values" :[["a1","b1","c1"],["a2","b2","c2"], ...]

Thus I have a list of lists where each inner list is fixed length of 3.

Using upickle to unpickle a list of (3) Strings to a tuple works nice:

read[(String,String,String)]("""["a1","b1","c1"]""")    ==>("a1","b1","c1")

But how would I write the same to get it into a case class?

I thought I would write something similar to:

case class Values(values:Seq[Value])
case class Value( (a:String,b:String,c:String) )

But I have to name the Value tuple something, which is fine, but then the unpickler assumes

that name in the json tag, I think, and I get a decode error.

Any tips on how I should craft case classes (or custom unpicklers?), to match the json, 'values', above?

// Björn

[Benjamin Jackman]

I haven't used upickle, but have you tried defining your own custom picklers as detailed here:

https://github.com/lihaoyi/upickle#custom-picklers

[Björn Julander]

Thanks for the reply! I was considering this, but it seemed like a bit overkill for

such a simple datatype. Perhaps I'll end up there eventually...

[Haoyi Li]

https://github.com/lihaoyi/upickle/issues/45

That issue is basically this one; feel free to track it or to send a PR to fix for everyone else.

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