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From Yuri Z <>
Subject Re: Java Client API
Date Sat, 09 Nov 2013 12:26:35 GMT
You are right, the info sent with Data API does not include user data -
blip read/unread state is not included. You do though, have the last
modified date, so you can navigate the blips in this order - take a look at (source at The
data documents are not in use, so they are always null. Anyway, data
documents were initially supposed to add ability to attach a custom data to
a blip (like a custom XML file), but I think it was never correctly
implemented even in Google Wave. The native Wave client uses different
protocol to fetch the data from the server so it has access to the user
data wavelets.

So regarding your second question: Robot/Data API are not live, and use
simple event based HTTP requests/responses.
The native Wave client is live and uses protobuff messages over websockets/ to communicate with server but there's no well defined API. In
theory you can create your own client that makes websocket calls but that
will not be easy.

On Fri, Nov 8, 2013 at 12:13 PM, Felix Wackernagel <> wrote:

> Hi,
> i have two question about the Java Client API.
> 1) I load all Wavelets from a Wave and found only the information how
> many message of a wavelet is unread but not which one is unread. I read
> in the Whitepapers about a User-Wavelet which stores such informations.
> I use the getDataDocuments() method on the Wavelet but it is everytime
> empty. Exist another way to get this informations or is some extra calls
> needed to the data model?
> 2) And the second one is abount the real-time comunication. The Java
> Client uses a simple HttpClient which creates for everytime a seperate
> connection between client and server. But i read that this comunication
> uses WebSockets to send messages from server to client automaticly. It
> is possible to make a WebSocket call to the server?
> I hope some one can help me to bring a little bit more light in the wave
> secrets.
> Best regards,
> Felix

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